Runsense plans the whole build to a race, then coaches day by day from every run,…
Tag: hrv
Apple Watch Series 12 and Ultra 4: four changes you probably didn’t expect
Four changes in Apple Watch Series 12 and Ultra 4 that this site has been asking…
Suunto Smart Heart Rate Belt 2: Price, Specs and What’s New
Suunto Smart Heart Rate Belt 2 rejects heart rate artifacts on the strap itself, before the…
Correlate: Recovery Scores From the Apple Watch You Already Wear
Correlate is an iPhone app for Apple Watch recovery, strain and sleep, with delayed-effect correlation testing…
Cinder: An Apple Watch Recovery App That Shows Its Calculations
Cinder computes recovery, strain, and sleep scores from Apple Watch data, with the full formula published…
Garmin CIRQA Band: Is its sleep data accurate? A 2-Week Test
Yes, broadly, at least for total sleep duration. CIRQA's night-to-night timing holds up well against five…
Reps: A Recovery Score That Rewrites The Workout, Not Just The Dashboard
Reps is an iPhone and Apple Watch app that reads your recovery, sets an intensity ceiling,…
Pace It: Running Analytics That Show Whether Your Training Is Actually Working
Pace It turns your run history into pace-at-effort trends, personalised training paces, and a running fitness…
Apple Health Tells You What Happened. Vitara Shows What Changed.
Vitara turns Apple Health and Apple Watch data into a clear dashboard for trends, HRV context,…
AI Training That Adapts to Your Recovery Each Day
IntervalCoach is an AI training app that rewrites today's cycling or running session from your recovery…
RED-S in Female Athletes: What Your Wearable Is Telling You
RED-S is one of the most commonly overlooked causes of performance decline in female endurance athletes.RED-S…
Fitbit AIR vs watchOS 27: HR and HRV Accuracy Tested
watchOS 27 records HRV for just 4 minutes per hour. Fitbit AIR locks on late and…
Samsung Vitals Alert: Apple Got There First
Samsung's new Health app update, rolling out 8 June, alerts you when multiple overnight metrics deviate…
Vero: On-Device Recovery and Readiness Scoring for the Watch You Already Wear
Vero turns Watch data into daily Readiness, Recovery, Sleep, and Strain scores. On-device, no proprietary hardware,…
Cycle-Synced Running: How to Use Your Garmin to Train Smarter Around Your Period.
Garmin already tracks HRV, resting heart rate, Body Battery and sleep, but most training plans ignore…
Ultrahuman Ring Pro: 15-Day Battery, AI, No Subscription
Ultrahuman Ring Pro: 15-day battery, on-device AI, no subscription Sleep is where useful biometric data sits.…
FORMA: Garmin Recovery Data to Structured Strength Workouts
Forma is a free tool that turns Garmin recovery metrics into structured gym sessions. Enter your…
HRV Data: What 5 Years of Daily Tracking Showed Me
Five years of daily heart rate variability measurements reveal patterns about sustainable training, measurement protocols, and…
