Watch metric
Sleep Score / Sleep Stages
Usefulness
6/10
· Worth a glance
Sleep Score / Sleep Stages Definition
A nightly score and a breakdown of light, deep and REM sleep, estimated from your movement and heart rate.
When it helps
As a long-term nudge to protect your sleep, which does more for your running than most gadget metrics.
When it doesn't
As a verdict on your day. Plenty of people run well on a night the watch rated poorly.
Sleep Score / Sleep Stages equivelants on Garmin, Fitbit and Polar
Garmin
Sleep Score
Fitbit
Sleep Score
Polar
Sleep Plus / Nightly Recharge