Our favorite overall sleep tracker is the Whoop 4.0 Band, thanks to its in-depth sleep information and personalized recommendations. With no buttons or screens on the band, Whoop looks simple at ...

The Oura Ring does more than track sleep—it monitors stress levels, suggests the best times to rest, and even keeps tabs on ...

The next frontier is tracking your body while asleep. What do sleep trackers do and how do they work? A new and emerging ...

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources ...

Fitbit began testing its Sleep Profile Animal feature in beta in 2021, but Samsung was the first to fully roll out a sleep ...

activity and sleep tracking (for metrics like time spent in bed and minutes spent awake). When I first unboxed it, the square screen and thick silicone band immediately reminded me of the Fitbit ...

The Whoop app is where the magic happens. Syncing hourly with the device, it provides a comprehensive overview of your ...

Looking for a budget fitness tracker as a beginner runner or gym-goer? After two months of testing, we think the Xiaomi Smart Band 9 might be the model for you.

Some focus predominantly on tracking your vital stats, while others can be a convenient one-stop shop for all your needs. Smart rings, for example, work best for sleep tracking. Smartwatches like ...