Fitbit Air lost my open water swim data for hours. The fix is to record swims…
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#1 The Deep Dive Fix Files: Week Ending 30 May 2026
This week's Deep Dive Fix Files rounds up seven issues from the endurance community, including the…
Fitbit Air Arm Sleeve: Excellent Bicep HR Accuracy Confirmed
No Fitbit Air arm band exists yet. This is how I wear the Air pebble on…
Oura Ring 5 vs Ring 4 – Is It Worth It?
Oura Ring 5 vs Ring 4 compared on size, battery, sensors, price and features. The honest…
Google Health: Fitbit, We have a problem. A design problem.
A $99 screenless tracker has exposed the weak spots in Google's new Fitbit app. Google Health…
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,…
Fitbit Air – We Got A Problem – Cadence Lock
Fitbit Air produced cadence-locked HR during an indoor treadmill interval session, averaging ~157 bpm against a…
Fitbit Air vs Amazfit Cheetah 2 Ultra: Bike Sprint HR Test
The Amazfit Cheetah 2 Ultra returns ±3 bpm limits of agreement in a road bike sprint…
Google Fitbit Air – It’s Here
Fitbit Air review. The $99 screenless tracker that takes on Whoop with no subscription, Smart Wake,…
Amazfit Cheetah 2 Ultra: HR Accuracy in a HYROX Sim – plus SmO2 Sensor
The Amazfit Cheetah 2 Ultra was put through a HYROX simulation in a gym at 33°C.…
new Amazfit HybridCharge vs Garmin Body Battery and Whoop
Amazfit's HybridCharge is the first mainstream readiness score to combine biometric sensor data with daily self-reported…
Eight Sleep Pod 5 Sale – Up to £600 Off, Ends 2 June
Eight Sleep's biggest Pod sale of the season ends 2 June. Up to £600 off the…
Zepp 10 – major app updates for Amazfit watch owners.
Amazfit has updated the Zepp app, replacing BioCharge and Readiness with HybridCharge, a score that combines…
