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Garmin accidentally reveals the Fenix 9 Pro and its biggest upgrades
Garmin has leaked the Fenix 9 Pro through its own website and an unlisted video, revealing a titanium case, bigger AMOLED, 64 GB storage and new training features.
Fitbit Data Can Finally Sync to Apple Health
The latest update to the Google Health app for iOS allows Google Health data to sync to Apple Health. Google's app is used to collect data from wearables like Fitbit trackers and the Pixel Watch. Sync to Apple Health. Share your data like your exercise records, sleep, vitals, steps, and more from Google Health to Apple Health. Google Health (previously the Fitbit app) collects fitness, sleep, and wellness data from a connected wearable device.
Wearable fingertip sensor identifies physical patterns linked to stress and anxiety
Researchers have shown that measurements taken from a person's fingertip could help identify physical patterns associated with stress, anxiety and depression. The international study, involving experts ...
New Health Data Unlocks Progress
AI-powered wearable health trackers are transforming healthcare by using massive datasets to predict risks, personalize insights, and empower individuals.
I used Huawei’s Watch D3 and it’s the wearable I’d recommend to anyone with blood pressure problems
If you need to track your blood pressure 24/7, the Huawei Watch D3 may be a great choice.
FDA authorizes first 2-in-1 wearable of its kind for patients with diabetes
The first of its kind continuous monitoring device from Abbott tracks glucose and ketone levels at the same time.
Google Teases Its New 'Fitbit Edge' Wearable Ahead Of An October 12 Reveal
Google has seemingly confirmed the rumored "Fitbit Edge" with social media posts teasing a new wearable coming October 12.
Kennedy announces an investigation into EMF and radiofrequency radiation
Health Secretary Robert F. Kennedy Jr. said in a video, “Wireless technology touches nearly every part of American life: cell phones, Wi-Fi, smart meters, wearable devices, wireless medical devices, 5G and emerging technologies like…
Digital Health Funding Is Booming, Especially For Wearables
The wearables industry has captured a significant amount of the capital in healthcare.
Wearable ultrasound patch boosts REM sleep without drugs or surgery
A new wearable patch may help people reach REM sleep faster and remain there longer without medication or surgery. In a study of 28 participants, the device shortened the time to REM by 43 minutes and extended it by about 16 minutes. Researchers also observed signs of improved stress regulation and changes in brain circuits tied to emotion.
10 of the best health and fitness trackers
The HTSI fitness contributor puts the latest wearables through their paces
Whoop CEO Will Ahmed on Medicare expansion: 'We're excited about where the business is going'
Whoop CEO Will Ahmed discusses the wearable technology company's expansion into CMS Medicare, reaching over 3 million members, and launching natural cycles integration on 'Mornings with Maria' with Maria Bartiromo.
Apple unveils Watch Series 12 and Watch Ultra 4 with an AI upgrade that can recap your day
Most notably, Apple is taking aim at the growing wave of AI wearables with new "Audio Intelligence" features that let you rewind moments and remember details from daily conversations.
Is This a New Google Fitbit Device With a Screen?
Shortly after the launch of the Pixel 11 series and the new Pixel Watch 5, marketing materials from Google included a mystery wearable device that looked like a mix of a Pixel Watch and a slimmed-down fitness tracker. Google never did say what the device was, but we may be a step closer to finding...
Cardiologist named chief medical officer of wearable tech company Whoop
Ami B. Bhatt, MD, a veteran cardiologist and digital health specialist, stepped down as the American College of Cardiology's chief innovation officer to accept this new role.
Health Brief: The remote monitoring squeeze
Plus: Health tech dealmaking spree is spilling into digital health, with buyers targeting virtual care, diagnostics, wearables and AI.
Mapping the Totality of Childhood Exposures: How Exposome Science Is Rewriting Pediatric Health
A new review in Pediatric Research charts how exposome science, from wearable sensors to multi-omics cohorts, is transforming the measurement and prevention of environmental risks to child health.
What doctors want patients to know about health wearables
What are wearables? Learn how smartwatches, fitness trackers and smart rings can support health, affect anxiety and help guide talks with your physician.
Google Launches Women’s Health Partnership and New Fitbit
Google has launched a women’s health partnership as it deepens its footprint in the wearable fitness-tracking space. The tech giant on Monday (Oct. 12)
My Wearables Track My Health. They Still Do Not Understand Me
Apple Watch, Oura Ring and ReSound Sensia each understand part of my health. Can the iPhone connect their data into a more complete picture of me?
AI is coming for your glasses
Big Tech thinks wearables are the gateway to artificial intelligence. Critics call it cringe stalkerware
I love the Huawei Watch GT 7 Pro's fresh design: it’s my favorite new fitness wearable
Huawei is on the offensive with its new band of stylish wearables.
Google's Mysterious New Fitbit Just Got a Lot More Real
The Fitbit Edge has a screen and a similar collection of sensors to the company's recent screenless wearable, according to new leaks.
Meta’s Reality Labs lost over $4.6 billion in second quarter
Meta's Reality Labs unit, which develops virtual reality and wearable devices, continues losing money.
casio turns its ring watch into smart wearable with health tracking and notifications
the CRW-H001 combines digital timekeeping with biometric sensors and smartphone connectivity in a finger-sized device available exclusively in china.
What ECU Health learned 24 hours into a wearable safety rollout
Randall Walston has spent 35 years with ECU Health and now leads a single police department covering all nine of the system's hospitals in eastern North
Fitbit’s founders designed a wearable for the whole family
Luffu, a health tracking app designed for families and caregivers, just unveiled a device that rethinks the wearable.
If Meta Glasses Freak You Out, Wait Until You Hear About the New Apple Watch Features
Live Rewind and Siri Recap just killed the dreams of always on AI wearables.
Google Expands Automatic Activity Tracking And Brings Health Guardian To The Fitbit Air
The company announced new health features for its wearables along with a new band for the Fitbit Air.
Health coach compared 4 fitness wearables: 1 was best for performance
A health coach wore an Apple Watch, Whoop, Oura Ring, and Fitbit at once to see which is best. He found a clear winner for fitness, health, and sleep.
A $6 Lead And 50,000 Women Reveal A Healthcare Market Failure
Xella Health integrates multi-omic diagnostics, AI, and Oura wearable data into a connected precision health platform. CEO Kelly Lacob on closing the diagnostic gap.
U. of I. innovation detects dialysis access failure
Auvi Labs will pilot a wearable ultrasound device that detects early dialysis access failure, helping physicians intervene before complications.
The Big Holes in Wearable Heart Rate Variability And Readiness Scores
On September 9th, Apple announced it was revamping its Apple Watch Health Sensing System, rolling out a Readiness score (0 to 10), and increasing the frequency of heart rate variability (HRV) outputs 24-fold. This can be viewed as upping its competition with various other consumer wearable sensors. These “readiness scores” as a composite of multiple metrics, with heart rate variability (HRV) being front and center for most. The majority of Americans are now using wearable sensors, which equates to well over 100 million adults. HRV and Readiness scores are increasingly being marketed as a measurement of autonomic nervous system health, a digital marker for future disease, a clock for biological age, and a holistic metric to promote healthspan and even longevity. (Apple also introduced a new longevity tab and “Health Age”.) None of this has been proven. In this edition of Ground Truths I am going to review what we know about heart rate variability and readiness scores. Heart Rate Variability HRV is the variation in normal heart cycle timing. The variability of the heart rate, the barely perceptible millisecond changes in time between consecutive heart beats (see R-R intervals in the Figure below, left panel), is due to interplay between the sympathetic and parasympathetic (vagal nerve) inputs. Distinct from heart rate, individuals with the same heart rate can have very different HRVs. It is a rough reflection of the autonomic nervous system (ANS) activity, inadequate to say whether a person’s ANS function is abnormal. For more than three decades, heart rate variability (HRV) has been measured and several studies have found an association of low HRV and clinical outcomes, particularly a link with higher all-cause and cardiovascular mortality. There have also been less well established links of low HRV to risk of early cognitive impairment, dementia, mental illness, Type 2 diabetes and substance abuse. An important reminder is that HRV is a surrogate marker without any established cause-and-effect relationship. If you increase your HRV, that doesn’t mean it will improve health outcomes. In fact, there is no hard evidence for that. All that work linking to health outcomes was done with electrocardiogram (ECG) derived HRV. Now, in the era of consumer wearables, this is getting assessed differently, by optical pulse (yes, the lights you see) plethysmography (PPG) or what is called pulse rate variability (PRV). They are not the same, as shown below (right panel) and only concordant when the delay between the ECG and pulse is kept constant, which basically means at rest. I should mention there’s also what I will call MPV, a mattress mechanical movement sensor, a derived heart rate variability, that companies like Eight Sleep use, even further away from directly measuring HRV. HRV has not one uniform measurement but many different types of quantification, such as RMSSD, the magnitude of difference between successive R-R intervals of normal sinus beats (N-N) or SDNN, the standard deviation of NN intervals, both in milliseconds. SDNN is one of the so-called frequency domain HRVs (others are LF, HF, LF/HF). Different wearable sensors use different metics; Apple has relied on SDNN and nearly all of the others use RMSSD, which is generally considered the more accurate metric. There’s also the different length of time measured, such as for a matter of minutes, all day, or an overnight’s sleep. Short measurements are especially problematic since they don’t capture enough of respiratory modulation and other factors that influence HRV. Share Ground Truths How well does HRV correlate with PRV? There are very limited studies, especially independently done. One that is commonly cited was conducted by Air Force researchers in only 13 healthy adults assessing Oura ring 3 and 4, Whoop 4.0, and Garmin Fenix 6 and showed a correlation coefficient of 0.88 to 0.97 and a mean absolute percentage error from 6 to 10%. The correlation is not a perfect 1.0, but there’s at least a fairly high level of correlation. HRV is supposed to increase during the night due to takeover of the parasympathetic nervous system, and higher during deep sleep. A recent example of my 1 week, all day “HRV,” and one during sleep is shown below. As you can see, the N of 1 data are inconsistent for the same days from different sensors (Oura, AppleWatch, Fitbit Air, and Eight Sleep) by patterns, absolute numbers, and comparison with prior days and weeks. The largest study in over 8 million Fitbit users (the old version, not Google Fitbit Air, introduced in May 2026) gives you a sense of the effect of age, sex, and the 2 different main HRV (here PRV) metrics, with RMSSD on the left and SDRR (=SDNN) on the right below. That study, from data collected in 2018, is a major outlier, since all the more recent ones are tiny with respect to sample size. Many of the companies have not had independent evaluation of their HRV, such as Eight Sleep, but have published a low standard error on their website. There are some other published studies on the correlation between HRV and PRV, but they are all small and only in healthy adults. A scoping review emphasized the lack of study in underrepresented individuals, including the aged, people of color (which affects the PPG signal), and individuals who are underweight or obese. Add the typical adult age 60 plus with one or more chronic diseases. For example, one study in over 900 adults found poor correlation of HRV and PRV, non-uniformly underestimated across many chronic diseases (cardiovascular, endocrine, neurological, respiratory, and others), concluding PRV is “an invalid surrogate for HRV.” A recent systematic review of 43 studies comparing HRV and PRV found reasonable pooled absolute standardized error (HRV as gold standard) but only 10 of the studies provided quantitative synthesis in ideal conditions. Their main conclusion was similarly cautious: “PPG-derived HRV [PRV] should not be regarded as universally interchangeable with ECG-derived HRV across all devices, populations, and recording contexts.” Factors Affecting HRV and PRV That gets me to the long list of factors that affect HRV (and PRV) besides the device, the type of measurement (RMSSD, SDNN or others), the person’s signal, the sensor site, the duration of data capture, if weighting by sleep stage is used, how artifact is processed and corrected. And this list is not complete!: Oura puts out data from their community of users (who input data) on what affects their overnight HRV. The factors currently provided are: no alcohol (increase 8%), melatonin (increase 2%, float tank (increase 2%), wine (decrease 4%), and party (decrease 14%) in overnight HRV. Must be some big parties! Subscribe What is a PRV measurement good for? It has been falsely characterized as an index of “autonomic balance” and a specific indicator of stress. A 2018 review of the studies available for HRV and its relationship to stress, not using any of the current wearables, found that stress can lower HRV. But so can many other factors. The non-specificity of the signal, indexed to the table above, is striking. Evidence from a UK Biobank study of over 46,000 participants with actual HRV looked at genetically predicted HRV, a genetic risk score, that failed to show the expected HRV-mortality link, indicating that _HRV is likely not causa_l, but rather a reflection of person’s physiologic state. A review of consumer wearable HRV data from 5 longitudinal studies showed that nighttime PRV was not associated with perceived stress, and surprisingly higher HRV, in the largest cohort (N=717 participants), was correlated with higher stress. An Oura ring cohort of 525 first-year college students found a link between overnight PRV and perceived stress, but that was also seen with resting heart rate, sleep, and respiratory rate. Several very small studies have examined the relationship of HRV and athletic injuries or guiding training with mixed, and predominantly negative results. HRV biofeedback training with paced breathing had no significant effect on reducing stress or raising HRV, as demonstrated with sham controlled trials. When HRV for multiple days showed a decline in conjunction with body temperature, the Oura ring published data for prediction of Covid. The WHOOP company sponsored an observational study, published in 2026, of 30,000 users for 72 weeks, without a control group, that reported reduced alcohol intake (5.8 % points) by self-report. That doesn’t tell us much, and particularly about the merits of HRV for behavioral change. If you use the same device and conditions as longitudinal trends for multiple (at least 2-3) weeks that may be the one way to get something useful from the measurements. Data for overnight sleep with minimal motion and using RMSSD is the best proxy for real HRV. The reason to look at trends rather than any given night is that it more likely represents something, even though you won’t know with certainty what the “it” is. Keep in mind there are no data, no peer-reviewed evidence, to show that HRV fluctuation in-person has any correlation with health outcomes. Share Readiness Scores These are proprietary scores that integrate different metrics for each of the wearables: no algorithms have been disclosed. They are unvalidated against health outcomes. In a review of 14 composite health scores of readiness and recovery, HRV contributed 86% to the scores, followed by reading heart rate (79%), physical activity and sleep duration (both at 71%). That review noted the substantial variability in measurement protools and lack of standardization. Sleep staging is notoriously inconsistent and inaccurate by these sensors, which adds further to the HRV uncertainties for what the scores, which use sleep stage data, mean. Only resting heart rate has been shown consistently across devices to be extremely accurate. I’ve made a Table to summarize what we know about which metrics are included, the scores, any peer-reviewed studies that compared the readiness score with health outcomes, and the corresponding (if any, NA-not available) citation. You will note that some companies do not use the term “readiness," such as WHOOP for recovery, and Garmin, which has 2 different scores, one of which is Body Battery. Eight Sleep uses the term “Fitness Score.” They all include HRV; Apple includes a new metric they call “Recovery HRV” which among other components uses 7-days of sleep, but it is unclear what this means or how it is differentiated from other scores (there are clearly no data for outcomes). We have no knowledge of how the different components are weighted or whether any of these scores are better than resting heart rate, HRV alone, physical activity, or any other single metric. Since none of these are standardized, they are not interchangeable, so if you get a 90 for Oura that has no relationship to a 90 on a Google Fitbit Air. Notably, the company can update its algorithm for readiness score at any point without notification to device users. Without any useful evidence of actionability for these scores or established relationship with health outcomes, it is hard to make a case for their value. At the Apple recent announcement they showed their Readiness score (0-10) on the watch (Figure below) but there are no published data on this score, not even on their website. It’s available only on their new Watch Series 12 or Ultra 4 [of course, ;-)]. That exemplifies the problems with these scores, lack of data and evidence for being meaningful to promote health. Perhaps the best study (which isn’t saying much) is the WHOOP Recovery for golfer performance, because it did correlate with an objective outcome, even though there was no control group and the authors were all from the company. Among the 389 pro golfers, an absolute 10-per cent point increase in Recovery score was associated with about 0.5 fewer strokes per round. But that’s hardly a health outcome! WHOOP is also conducting a study in over 2,700 runners to see if their recovery score will be linked to less injuries and improved performance, but that is not yet published and has no control group or randomization. Putting This in Context For two decades I’ve been enthusiastic about the potential for digital health and particularly wearable biosensors. Over the years, we’ve seen some great progress for their ability to promote physical activity and accurately detect atrial fibrillation (the first FDA cleared deep learning AI for consumers). That work was the subject of rigorous research. But there are holes in the data and evidence for other metrics. One notable one is the “VO2 max” story that I wrote about earlier this year. At that time many subscribers asked me to cover heart rate variability, which I finally got to here. When I dived into the research and publication for HRV and readiness scores, I expected to find at least some that were of high quality and demonstrated their utility by linkage to health outcomes. To my surprise, I found none. The wearable sensor measurements for HRV (PRV) are, for the most part, accurate, but that validation work has only been done in small studies of healthy adults and does not take into account the long list of factors, from the device, software side, and the user side, that affect HRV measurements. Moreover, this metric chiefly relies on optical sensing and, as we have learned for heart rate PPG sensing, may be less accurate in people of color. Keep in mind that all of the health outcome association evidence comes from ECG-derived HRV; none are from wearable sensor data. I will repeat the key point: there's no peer-reviewed evidence to show that in-person HRV fluctuation—or efforts to raise your HRV— has any correlation with health outcomes. For those of you who look at your HRV on awakening, or even 2+ week trends of it being low, I hope this context helps to relieve any anxiety. Yes, low HRV (not PRV) has been shown to increase risk of some diseases as summarized above. But efforts to raise your HRV—a surrogate metric— has not been established for improving any health outcomes. HRV does not have any evidence of causality (the genetic evidence actually goes against this possibility). In this summary, I have not included data for other wearable sensors such as Polar, Samsung, Withings, Suunto, Amazfit, Coros, Ultrahuman, or additional mattress sensors. These are beyond my first-hand experience, and as far as I know from my in-depth review none have any peer-reviewed published data that differ from the 6 sensors I’ve reviewed here. From the points I’ve gone over above, we’re not ready for readiness scores. Besides being proprietary, they are predominantly based on metrics that have their own issues. It’s compounding the problem, like building a house without a solid foundation that has never undergone a rigorous inspection, and then selling it. Like I mentioned for PRV, you can look at trends over weeks rather than any single day, to get a handle, but even that may not be helpful. There’s simply no evidence that these scores meaningfully relate to health outcomes. I’d emphasize they might, but that requires doing prospective or randomized studies to prove it. None exist. There’s great promise for HRV/PRV utility_. For example**,**_ Prof Maiken Nedergaard, who discovered the brain glymphatics that are essential in eliminating metabolic waste products from the brain during sleep, has posited that HRV could be a non-invasive marker for neuromodulator oscillations, brain-body regulatory circuits, and brain clearance. That would be extremely useful, but like everything else on HRV and readiness scores it requires solid research and validation. The lay media isn’t helping much to get the story straight. Earlier this year The Economist published a piece entitled “The most useful indicator of your overall health” which ordained HRV as an “accumulated stress score.” That’s akin to the false assertion about VO2max: “V02 max is the singular most powerful marker for longevity.” As I’ve summarized here, that is not established. The fact is that so many things can lower HRV, including physical exercise (especially an intense workout), reduced sleep quality, stress, the list above, no less the device, signal, and software. Whatever fluctuations observed have not been correlated with any health outcome. Sadly, “datamaxxers” are widely using HRV and readiness scores that have never been validated to mean anything. We already know that for some people using the sensors for sleep metrics, it can induce “orthosomnia,” an obsession to get high sleep quality, with associated high levels of anxiety. In an experiment done by a company to promote sleep quality for its employees, “For those employees who did use the trackers, many reported feeling perfectly rested until their tracker told them they had had a terrible night. Others were told that they had slept like a baby when they had actually been lying awake worrying about the quality of their sleep. “ The same problem can result from preoccupation with HRV or readiness scores, with anxiety that would lead to further reduction in both. It you are using a wearable like >100 million American adults, it’s OK to look at these data, but contextualized with the major caveats reviewed here. If you are one to require evidence that HRV or readiness scores are linked to health outcomes, you may not even want to look. The companies make it hard to turn them off! Let me end with the companies that make and sell wearables. Apple’s doubling down on HRV (24-fold more reporting and heart rate very 5 seconds) and introduction of a Readiness score tells us that consumers have bought into these metrics and they are joining the club. However, all of this is occurring with a backdrop of tens millions of users, claims about the data that are not backed up by adequate evidence, marketing way out in front of whatever limited data exists, and not being transparent about their readiness score algorithms. The companies can well afford to do the research that is needed to connect these metrics with health outcomes show, once and for all, that increasing HRV or using readiness scores promotes our health. If they believed and invested in the products they are selling, we’d not be in this position of not knowing. That’s essentially where we are with HRV and readiness scores. Perhaps someday this will change and we’ll have good reason to embrace them. NB: I wrote this post. No AI. I have no conflicts of interest with any of its content. Loading... Ground Truths has 215,000 subscribers from every US state and 214 countries. There are over 300,000 followers of Ground Truths so more than 90,000 folks who can easily convert to be free subscribers. Your subscription to these free essays and podcasts makes my work in putting them together worthwhile. If you’re not a subscriber, please join! If you found this interesting PLEASE share it! Share Ground Truths The proceeds from all voluntary paid subscriptions go to support our summer internship program. It enabled us to accept and support a record number of 62 summer interns that joined us in 2026! These are high school, college and medical students selected from thousands of applicants. We couldn’t do this expanded program without the funds coming in through Ground Truths. Thank you!
Why A CEO’s Calendar Is A Better Health Assessment Than Their Wearable
Wearable tech offers useful health insights.However, a CEO's calendar can reveal more than meets the eye about their health, performance, and long-term capacity.
Scientists find a hidden cause of high blood pressure that routine tests can miss
A wearable device has revealed nighttime hormone surges that may expose a frequently missed cause of high blood pressure. The discovery could help explain why primary aldosteronism often escapes standard blood tests and point toward a more accurate way to diagnose it.
Fitbit Edge is Google’s middle ground between Fitbit Air and Pixel Watch
Google’s newest wearable costs $179.99 and has a sleek feel like the Fitbit Air but with an OLED display.
The Chinese Smart Glasses Proving That Smart Glasses Can Be Repairable
It’s often claimed that wearable devices cannot have user-replaceable batteries or even be serviceable at all due to how compact and waterproof they must be, yet there are plenty of examples …
6 Mini Gadgets To Add To Your Wishlist In 2026
Whether you're into cameras, wearables, or clever accessories, these mini gadgets from 2026 show how much technology can fit into a surprisingly small package.
Sony Reon Pocket Pro Plus Air Conditioner Arrives In U.S. To Beat Summer Heatwaves
As another heat dome is predicted in the U.S., Sony’s wearable air conditioner has just arrived. Here’s all you need to know.
Stretchable antenna keeps wearable health sensors in tune with human health
Wearable health monitors are designed to move with the body. But for many devices, movement creates a problem: The more a person bends, stretches, reaches or runs, the harder it can be for the device ...
Health wearables can help track trends, but doctors warn against relying on them alone
Doctors say health wearables are useful for tracking trends over time, but warn against using them to diagnose conditions or panic over individual readings.
From Academia to Industry: Hongbian Li on Wearable Electronics, AI, and the Changing Landscape of Materials Science
Hongbian Li shares her experience as a reviewer, shifting to industry, and on translating materials research into real-world applications.
Sony's Reon wearable air conditioner saved my sanity through multiple heatwaves
Sony's Reon Pocket Pro Plus looks like an alien is attached to your spine, but it works.
Apple’s latest acquisition is about technology that sounds futuristic
EU filings revealed today that Apple has acquired a company called Sonera, makers of wearable-centered technology that sounds futuristic.
Fire Emblem: Fortune's Weave announces Expansion Pass DLC
DLC is coming to Fire Emblem: Fortune’s Weave with a new Expansion Pass, Nintendo and Intelligent Systems just revealed. Three separate waves of content are planned. Wave 1, which is out today, includes four additional weapons. These are modeled after the Heroes’ Relics from Fire Emblem: Three Houses. Wave 2 includes additional wearable outfits and three additional allies. New allies...
Sony Reon Pocket Pro Plus Air Conditioner Arrives In U.S. To Beat Summer Heatwaves
As another heat dome is predicted in the U.S., Sony’s wearable air conditioner has just arrived. Here’s all you need to know.
Abbott and Google launch first-of-its-kind partnership to transform everyday health through glucose insights and AI
Multi-year collaboration combines ongoing glucose insights from Abbott's Lingo biowearable with Google Health's technology to create a more comprehensive view of personal health Partnership...
Oura, Counsel Health join CMS ACCESS model to test whether wearables and AI can improve chronic care at scale
Oura and Counsel Health are teaming up to participate in CMS' 10-year chronic condition management program, betting that continuous health data from Oura's smart ring paired with medical AI can hel | Counsel Health, an AI-native primary care company, plans to participate in CMS' ACCESS Model under the early cardio-kidney-metabolic track, with smart ring maker Oura serving as the preferred wearable partner.
Castill Health Announces Plans for Philippines Digital Healthcare Launch, Supported by Craig Astill and Caason Group
Singapore, Singapore--(Newsfile Corp. - October 17, 2026) - Singapore-based digital healthcare venture Castill Health has announced plans for its first market rollout in the Philippines, targeted for later in 2026.The company is developing a digital healthcare platform intended to connect wearable health monitoring devices, personal health information and access to participating medical professionals.Australian entrepreneur Craig Astill alongside Caason Group and Castill Family Office, is...
Do Social Media Longevity Trends Actually Work?
Viral health trends across social media claim to increase both stamina and longevity, but do they really work? TODAY medical contributor Dr. Natalie Azar joins TODAY to differentiate fact from fiction by breaking down social media health claims, from cold plunges and cortisol levels to wearable trackers and more.
Cunion Frames Its Wearable Health Ecosystem Around Five Health Benefits
San Diego, California--(Newsfile Corp. - August 29, 2026) - Most health technology can overwhelm users with constant notifications and dashboards, eventually causing them to disengage. In response to this challenge, Cunion is building an ecosystem around the premise that the healthiest device is the one that stays quiet until it has something worth saying. From this approach, Cunion identifies five practical health benefits across its wearable ecosystem.To view an enhanced version of this...
Meta made a Tamagotchi-like wearable for its Muse AI agent
The tiny hardware device creates another mobile home for its AI agent Muse.
Fotini Markopoulou and C. L. Max Nikias Lead September’s Greek Science and Technology News
Terry Poulos examines Fotini Markopoulou’s journey from quantum gravity to wearable technology, Max Nikias in Cyprus, AI advances, cybersecurity rankings
Can you really trust your smartwatch? A doctor explains
What a doctor wants you to know about sleep scores, heart rate data and wearable health tech.
Fitbit founders launch AI-powered wristband to monitor health of whole family
Luffu Link is a sleek, wireless wristband designed to track multiple users at once, conceived by wearable technology company Fitbit.
Weight Watchers and Google Health Launch Weight Health Collaboration for Employers and Payers
Weight Watchers and Google Health Enterprise have launched a collaboration combining wearable technology, health insights and behavioral weight management, expanding Weight Watchers’ offering for employers, health plans and other payers. Key Investor TakeawaysWeight Watchers (NASDAQ:WW) is integrating Google Health Enterprise technology into select Weight Watchers for Business client programs.
New framework aims to improve reliability of tear-based health sensors
Dr. Yangzhi Zhu of the Terasaki Institute for Biomedical Innovation (TIBI), with collaborators at UC San Diego and USC, published a Nature Sensors perspective on what it will take to turn tear-based wearable sensors into reliable, long-term health-tracking tools.
A film thinner than a human hair blocks electromagnetic waves—and hides heat!
CHANGWON, South Korea — A research team led by Dr. Taehoon Kim of the Composites & Convergence Materials Research Division at the Korea Institute of Materials Science (KIMS), headed by President Chul-jin Choi, has collaborated with research teams led by Dr. Seon Joon Kim and Dr. Jaewoo Kim of the Korea Institute of Science and Technology (KIST) to develop an ultrathin composite film that combines electromagnetic interference (EMI) shielding, infrared (IR) stealth, and high mechanical strength. The researchers achieved these multifunctional properties by combining carbon nanotube (CNT) fibers and MXene in a structure resembling “bricks and mortar.” The technology is expected to protect military systems and aerospace electronics while also reducing electromagnetic interference in 5G/6G communication devices and wearable electronics.
Fitbit creators unveil screenless wearable to help track aging parents
The $300 Luffu Link wearable has location sharing, health sensing, a wau to ask for help, plus voice logging for medications, meals, mood and other reminders.
Oura’s IPO Raises A New Leadership Question About Health Data
As Oura heads toward an IPO, wearables are moving deeper into employee benefits, raising leadership considerations that extend long after people put on a ring.
AI-powered home monitoring tracks older adults’ health while protecting privacy
Older people could be monitored safely in their own homes without the need for intrusive cameras or wearable devices thanks to new research by Nottingham Trent University (NTU).
Why Apple's camera-equipped AirPods may not be the 'pervert pods' consumers fear
Apple’s leaked camera-equipped AirPods might avoid the privacy pitfalls of other AI wearables by preventing users from recording photos and videos.
Fitbit creators unveil screenless wearable to help track aging parents
The $300 Luffu Link wearable has location sharing, health sensing, a wau to ask for help, plus voice logging for medications, meals, mood and other reminders.
Google invests in Flo and plans women’s health wearables
Google has invested in period tracker Flo. Flo data will sync with Google Health from early 2027, and the pair will build co-branded devices.
Pixel Watch 1 not losing Google Health sleep, workout support
On Tuesday, Pixel Watch 1 owners encountered a Google Health error message about needing to update their wearable.
Always on, always listening: New AI devices are pushing legal limits and could put users in jeopardy
AI always-listening wearables from Apple, Amazon, Meta and other startups are getting creative with privacy rules and fueling concerns about covert recordings.
Why the Hottest New Wearables Want to Be Ignored
Burnt out on wrist buzzes and notification overload? A new crop of minimalist wearables promises to collect your health data without demanding your attention.
Murj announces patient monitoring platform for hypertension and heart failure
Remote monitoring devices are gaining popularity in the fields of hypertension and heart failure, but many health systems still struggle to get data into their EHR.
SEERS’ AI-powered wearable ECG monitor wins Health Canada approval
SEERS, a wearable AI diagnostic monitoring company, said Monday that its AI-powered wearable electrocardiogram analysis solution mobiCARE has received a Class II Medical Device Licence (MDL) from Health Canada.Health Canada granted the licence last Thursday (local time), following an application sub
UM Health-West introduces new security measures
UM Health-West has expanded its safety measures with the help of a new wearable device used to alert the building to security threats. It’s called Canopy Protect, and hospital leaders say they’ve already seen safety improvements since implementing the device about two weeks ago.
Flo Health and Google Health Join Forces to Put Women's Health at the Center of Wearable Tracking and Personalized Coaching
/PRNewswire/ -- Flo Health, the #1 women's health platform worldwide, announces today a multi-year strategic partnership with Google Health to create a more...
A $6 Lead And 15,000 Women Reveal A Healthcare Market Failure
Xella Health integrates multi-omic diagnostics, AI, and Oura wearable data into a connected precision health platform. CEO Kelly Lacob on closing the diagnostic gap.
Engineers connect health wearables and implants using the body as the network
Using the human body to transmit signals, Georgia Tech engineers have created a wireless networking system that allows tiny implantable sensors and actuators to communicate with each other and with wearable ...
Amazon's Bee launches two new personal AI devices, starting at $75
Amazon-owned Bee has launched its first new AI devices since its acquisition, including an updated wearable and a credit-card-sized recorder that attaches to smartphones. The devices can summarize conversations, create to-do lists, and integrate with Alexa and Amazon shopping, with prices starting at $74.99.
Amazon launches new Bee 'personal AI' devices that listen to conversations
The $75 Bee Frontier is an upgraded version of Amazon's wearable bracelet, while the $100 Bee Eclipse attaches to a user's smartphone.
OpenAI acquires Israeli-founded camera startup Glass Imaging for over $300 million
Founded by Israeli former Apple engineer Ziv Attar and his former colleague Tom Bishop, Glass Imaging uses AI to overcome limitations in compact cameras and has developed technology for smartphones, drones and wearables.
Screenless Wearables Forecast a Minimalist Health-Tracking Future
Popular alternatives to the Apple Watch, Galaxy Watch, and Pixel Watch are a sign of wearables reaching a new level of maturity and acceptance.
Well-known cardiologist named chief medical officer of wearable tech company Whoop
Ami B. Bhatt, MD, a veteran cardiologist and digital health specialist, stepped down as the American College of Cardiology's chief innovation officer to accept this new role.
Political Identity Now Drives Billions In Consumer Funding
Wearables, wallets and scanners show political and lifestyle identity now drives billions in venture funding across a 2x2 consumer market map.
Smart Glasses, Smarter Small Businesses: AI Wearables Are Becoming an Entrepreneurial Tool - Small Business & Entrepreneurship Council
By Karen Kerrigan – For entrepreneurs and small businesses, valuable technologies eliminate friction. Various digital tools are helping small businesses eliminate steps, and accomplish a task or project more efficiently, in less time, and at lower cost. AI-powered smart glasses are helping small business owners eliminate operational downtime, automate content creation, and improve workplace accessibility, […]
Samsung Galaxy Unpacked July 2026 Live: Z Fold 8, Z Flip 8, Watch 9 News
We're in London to bring you all the latest on Samsung's newest foldables and wearables.
The Fitbit Edge doesn't have NFC, and Google just revealed why
The Fitbit Edge launched earlier this month, but does this new wearable have NFC? Here's what Google told us.
This wearable AI stock is set to rally thanks to a broader business focus, Jefferies says
A maker of energy efficient computer chips is likely to soar as smart-device hardware and AI compute businesses continue to gain traction, one analyst says.
From Wearables to Robots to Tabletop Trinkets, the AI Hardware Scene Is Booming
AI is supercharging a new crop of gadgets, mixing whimsy with practicality. I checked them out at IFA 2026.
Beebe Healthcare rolls out wearable safety buttons for frontline staff
Beebe Healthcare is rolling out wearable duress buttons for frontline employees as part of a new effort aimed at improving workplace safety across the health system.
The Apple Watch Series 12 is the start of a new wearable era
Looks like the same watch, but Apple has big plans.
Senphonix Receives National Science Foundation Grant to Advance SleeveSense, a Continuous, Long-Term Vitals Monitoring Platform
/PRNewswire/ -- Senphonix, Inc., a medical-technology startup developing SleeveSense™, a wearable that will continuously monitor patients' vital signs over...
Luffu's New Health and Safety Wearable Isn't Just for You. It's for Your Entire Family
You can link your entire family together with Luffu's new wearable and app ecosystem.
Senphonix Receives National Science Foundation Grant to Advance SleeveSense, a Continuous, Long-Term Vitals Monitoring Platform
Senphonix, Inc., a medical-technology startup developing SleeveSense™, a wearable that will continuously monitor patients' vital signs over days, weeks, or months, today announced it has received a Small Business Technology Transfer (STTR) Phase I award from the U.S. National Science Foundation (NSF) through America's Seed Fund. The award supports engineering to strengthen the patent-pending device's wireless and radio-frequency systems and to move it from prototype toward a manufacturable produ
AI wearable watches you to predict what you need
The iKairos AI wearable features an inward-facing camera and voice detection to anticipate your needs, raising significant privacy questions.
The New World Of Wearables: From Health Monitoring To Human Augmentation
The new world of wearables may be more about a much larger transformation: providing people with previously unheard-of visibility into their skills, performance, and health.
Samsung (KOSE:A005930) Launches Galaxy Watch Ultra2 And Watch9 With AI Health Features
Samsung Electronics launched the Galaxy Watch Ultra2 and Galaxy Watch9, expanding its smartwatch lineup with new models focused on AI-powered health and fitness features. The devices introduce AI-driven health insights, advanced sports tracking, and specialized dive capabilities, supported by partnerships such as Mares for underwater use. The launch adds fresh products to Samsung’s wearable and digital health ecosystem, providing another data point for investors watching its consumer...
Apple’s Next Health Wearable May Look Nothing Like an Apple Watch
The tech giant is reportedly developing a screen-less fitness tracker to compete with Oura and Whoop.
Apple reportedly considers screenless wearables in effort to revamp Apple Watch lineup
An overhaul of Apple Watch may be coming, but not right away.
Apple retains clear smartwatch market lead, but a new contender is rising in a key wearable segment
No one can threaten Apple's smartwatch market supremacy right now, although Google and Garmin are making very interesting progress with a relatively new type of wearable.
China builds the world’s smallest wearable brain monitor with a cortex-wide view
The Airscope offers a window on the simultaneous activity of thousands of individual neurons in untethered lab animals.
Pixel Watch 5 shows up early in an official Google app
The Google Health app is already listing the Pixel Watch 5, weeks before the wearable is due to be officially unveiled.
Friend, the lonely AI wearable, returns with a new voice and a much bigger price tag
Friend, the AI wearable, can now talk to its users — for an enhanced price.
Recycling e-vapes, smartwatches could reduce Europe's dependence on foreign powers for critical minerals
Sales of fast tech like mini fans and disposable e-vapes, as well as wearable health tech such as heart monitors and smart watches are soaring. They're creating a new e-waste problem but are full of hidden treasure.
Google built a camera-based tool to estimate body fat more accurately than wearables
Google explains how its new photo-based tool can do a body composition analysis more accurately than your smartwatch.