Health tracking
Sleep tracking was comprehensive and mostly accurate, with detailed stage breakdowns.

Ask about the Galaxy Watch 8
Released Guide updated


Comparison
Compare watchesGoogle Health Premium costs $9.99 a month. It is optional. Over 3 years that is $360.
A personalized health coach, plus the fuller sleep and readiness analysis and the workout and mindfulness libraries.
DeviceOptional subscription
As each company quotes it. Not every company says whether its figure includes the band.
Battery life can vary based on usage, settings and firmware version.
If not this one
Reviewers prefer its running and training.
Reviewers prefer its battery life.
Built tougher: 10 ATM, against IP68 here.
Quick answers
All questionsSleep tracking was comprehensive and mostly accurate, with detailed stage breakdowns.
Scores published by other outlets, normalized and averaged. iDevice did not test these products for this score.
Reviewer breakdown
Liked itDidn’t
PREVIOUS MODELSamsung Galaxy Watch 8
CURRENT MODELSamsung Galaxy Watch 9
Discount below listEstimated reading
15 sales in the past year. The best was $199.99 in December 2025, 43% off the $349.99 list price.
Returns
Warranty
Covered
Not covered
Good to know
Outside South Korea you'll have to keep checking, because Samsung hasn't said when your country gets it. Older watches come later.
If you own a Galaxy Watch 4, the software stops here. The stable release should reach the Watch 5 and newer, and LTE owners report they cannot enroll.
Two beta builds turned up on Samsung's servers hours apart, for the Galaxy Watch 8 and the Galaxy Watch 7.
Samsung is turning five overnight body readings into one sentence telling you what to do. Google did it first last month.
Samsung is testing whether Galaxy Watch 8 catches Ozempic-driven muscle loss as accurately as a hospital DXA scan.
Galaxy Watch6 called fainting 5 minutes early in 84% of cases, and got it wrong 36% of the time.
Samsung's throwing in a $130 Withings scale free with Galaxy Watch purchases, but you'll wait 15 days just to get the redemption code.