
WHOOP vs Apple Watch: which tracker should you choose?
WHOOP or Apple Watch for recovery and training? A comparison of sleep tracking, GPS, screens, subscriptions and two-year costs.
Read the analysisWearables, CGM and sensors put to the test: what the measurements are really worth before you buy, without marketing jargon.

WHOOP or Apple Watch for recovery and training? A comparison of sleep tracking, GPS, screens, subscriptions and two-year costs.
Read the analysis
Ring Pro or Ring Air: price, comfort, battery life, measurements and total cost compared, with a verdict for each user profile and the limits of validation.

Rings, WHOOP, watches and glucose: compare measurements, subscriptions, dated official prices, accuracy, sleep, sport, cycle tracking and privacy.

Nighttime HRV: 20, 40 or 80 ms is not enough to judge your health. Compare your baseline over 14 to 21 nights, devices and signs to watch for.

Hyperbaric chambers in France: evidence on recovery, cognition and anti-aging, session prices, risks and a cautious trial protocol.

Finger temperature, the fertile window and LH tests: what Oura can estimate, what it confirms too late and why it does not replace contraception.