Your coach, tuned by your own data
Connect your smartwatch or ring and F4Fit learns your real steps, sleep, resting heart rate and HRV. In 7 days it builds your personal baseline, then adjusts training to how you actually recovered.
Connect a device
F
Fitbit & Pixel Watch
Google Health
O
Oura Ring
Sleep, readiness, HRV
W
WHOOP
Recovery, strain, sleep
P
Polar
Watches & straps
W
Withings
Watches, scales, sleep
More brands are on the way
These brands don't offer an open connection for websites yet. Until they do, add your numbers by hand below. It takes 20 seconds and still builds your baseline.
GarminApple WatchSamsung Galaxy WatchAmazfitNoiseNike Run ClubHuaweiXiaomiboAtCOROSSuuntoUltrahuman RingRingConn
Read-only and private. F4Fit only reads activity, sleep, heart and weight data to personalise your plan. We never post or change anything on your device account, never sell data, and disconnecting deletes the imported data. Fitness guidance only, not medical advice.