News
Latest developments in wearable hardware, longevity research, and biohacking technology.
Apple Watch Ultra 4 and Series 12: What DC Rainmaker's First Hands-On Tells Us
DC Rainmaker went hands-on with the newly announced Apple Watch Ultra 4 and Series 12, calling them the biggest hardware leap since the Ultra line debuted.
Oura Files to Go Public, Reports $1.2B in Earnings as FDA Loses Another Digital Health Leader
Oura has filed to go public and reported $1.2 billion in earnings, according to STAT News, which also reported another senior FDA digital health official has departed.
Wahoo Returns to Running With a New Apple Watch App
Wahoo is launching a new Apple Watch app and features aimed at runners, years after discontinuing its RIVAL watch, according to DC Rainmaker.
Circular Ring 3 Hands-On: Tom's Guide Says the New Smart Ring Beats Oura Ring 5 in Three Big Ways
Tom's Guide went hands-on with the newly launched Circular Ring 3 and reports it outperforms the Oura Ring 5 and other top smart rings in three major areas.
COROS Says It Will Bring Full Mapping to Existing Pace 4 Watches via Firmware Update
COROS plans to add full mapping capability to already-purchased Pace 4 watches through a firmware update, according to DC Rainmaker.
Oura Expands Its Menopause Impact Scale Into Clinical Care Through New Partner Network
Oura is extending its proprietary Menopause Impact Scale to ten healthcare and hormone-tracking partners, aiming to bring wearable-derived menopause data into clinical settings.
Google Pixel Watch 5: A New GPS Algorithm Claims to Challenge Garmin and Apple
DC Rainmaker's hands-on with the Pixel Watch 5 flags one standout upgrade: new GPS algorithms the outlet says meaningfully improve location accuracy.
Garmin Will Bring Fenix 9 Features to Older Watches, DC Rainmaker Reports
DC Rainmaker reports Garmin is breaking from past practice by extending some Fenix 9 features to existing watches rather than keeping them exclusive to new hardware.
FDA Authorizes First Wearable That Continuously Tracks Both Glucose and Ketones
The FDA has cleared the Libre Duo 10 Day system, the first wearable to continuously monitor both blood sugar and ketone levels, for people with diabetes aged 2 and up.
Garmin Acquires TrainingPeaks and TrainHeroic: What It Could Mean for Athletes
Garmin has acquired training-platform TrainingPeaks and its strength-training offshoot TrainHeroic, according to DC Rainmaker, though financial and integration details remain undisclosed.
Shokz OpenFit Air 2: Nearly 20 Percent Lighter, Still Open-Ear
Shokz's new OpenFit Air 2 earbuds shed weight and keep an open-ear design meant to cut pressure and heat buildup, according to Engadget.
Garmin Cirqa, One Month In: What DC Rainmaker's Long-Term Test Actually Tells Us
DC Rainmaker's month-long, near-continuous wear test of the new Garmin Cirqa frames the device against expectations set at launch — here's what the format reveals.
Garmin Cirqa Confirmed: A Screenless Wearable Arrives After a Year of Wrong Guesses
DC Rainmaker's hands-on confirms Garmin's long-rumored Cirqa is real and screenless, though most of the rumor mill's other guesses missed the mark.
Polar Vantage V4 Announced: Dual-Band GPS + Running Power
Polar's flagship multisport watch gets dual-frequency GPS, wrist-based running power, and 60-hour battery. Launches April 2026 at $599.
Stanford Study: Zone 2 Cardio + CGM Tracking Reverses Metabolic Syndrome in 12 Weeks
Landmark trial shows 45-minute daily Zone 2 cardio combined with continuous glucose monitoring produces 73% reversal rate of metabolic syndrome. Published in Cell Metabolism.
FDA Clears Dexcom G8: 15-Day Wear Time, No Fingerstick Calibration
Dexcom's next-generation CGM receives FDA clearance with 15-day sensor life and zero-calibration accuracy. Launches June 2026.
Apple Watch Series X Blood Pressure Feature Receives FDA Clearance
The FDA has granted 510(k) clearance for Apple Watch Series X's non-invasive blood pressure monitoring. Expected launch September 2026.
Garmin Enduro 3 Announced: 320-Hour GPS Battery Life
Garmin's new ultra-endurance watch targets multi-day expeditions with solar charging and 13-day smartwatch mode.
Whoop 5.0 Leaked: Smaller Sensor, New Biomarkers
Supply chain leaks suggest Whoop 5.0 launches Q3 2026 with blood oxygen tracking and 20% smaller sensor module.
Samsung Galaxy Ring 2 Launches March 2026 With ECG
Samsung's second-generation smart ring adds FDA-cleared ECG and AFib detection. Direct Oura competitor at $299.
Harvard Study: NMN Shows 18% Improvement in VO2 Max for Older Adults
First large-scale NMN trial (N=240) shows significant aerobic capacity improvements in adults 60+. Published in Cell Metabolism.
Rumor: Apple in Talks to Acquire Levels Health for $1.2B
Bloomberg reports Apple is in late-stage acquisition talks with Levels Health, the CGM software platform. Deal could close Q2 2026.
Oura Ring 4 Coming Spring 2026 With Glucose Sensor
Oura CEO confirms Gen 4 ring will include non-invasive glucose monitoring. Partnership with Dexcom hinted.
Meta-Analysis: Magnesium Supplementation Increases Deep Sleep by 27 Minutes
Systematic review of 18 RCTs shows magnesium (400mg+) significantly improves NREM N3 sleep duration. Published in Sleep Medicine Reviews.
FDA Approves First Over-the-Counter CGM for Non-Diabetics
Abbott's Lingo CGM receives OTC approval, making continuous glucose monitors available without prescription for wellness use.
FDA Grants GRAS Status to Creatine Monohydrate
Creatine officially recognized as "Generally Recognized As Safe" by FDA after 30+ years of research. Opens door for food fortification.