Key specs
Price
$99indicative US list price
Battery
7 d7 days, a five-minute charge gives a day
Water resistance
5ATM / 50m (swim)
Case size
34.9 x 17 x 8.3 mm
Subscription
Not required · Google Health Premiumnot required, three months included, gates AI coaching only
not confirmed: VO2max: sources disagree, so it is left off, sleep efficiency taken from the shared Fitbit platform
What it tracks
Heart & vitals
Resting heart rateConsumer
HRVConsumer
Blood oxygen (SpO2)Consumer
Respiratory rateConsumer
Skin temperatureConsumer
AFib detectionClinical grade
Sleep
Sleep durationConsumer
Sleep stagesConsumer
Sleep scoreConsumer
Activity
StepsConsumer
Active minutesConsumer
CaloriesConsumer
WorkoutsConsumer
Distancetracked
Fitness
Training loadtracked
Recovery / readinesstracked
Screening, not a medical diagnosis. This device offers AFib detection, SpO2. These are wellness screening features, not a substitute for a clinical evaluation.