The fitness-tracking Basis B1 Band just added a new sleep-tracking feature that distinguishes REM, deep sleep, and light sleep. But how well does it work? And what can the data actually do for you?

Being as chiseled as I am is tough. You have to eat right (brownies only every other day), exercise (take the stairs to the attic), and keep tabs on things like your heart rate and body temperature ...

Fitness tracking devices have undergone a substantial makeover as they’ve made the move from the pocket to your wrist. Once the domain of small, clip-on gizmos that were marketed on how unobtrusive ...

Basis' new fitness band, dubbed the Carbon Steel Edition, is much more comfortable than the original. And that's not just me parroting the company's marketing materials: I've been testing the original ...

The Basis B1 band was already one of the best activity trackers you could buy, with a few caveats. In the last few months, it’s taken significant steps towards becoming even better; in November the B1 ...

Owners of the B1 Band can now return the device and get their money back. Basis also reminds customers it's shutting down its fitness platform. Dan Graziano is an associate editor for CNET. His work ...

Monitoring how long a user sleeps is an increasingly common feature in activity trackers, but Basis is upping the ante with a new suite of advanced analytics that can actually break down the phases of ...

How much do you move, sleep or do nothing at all? A crop of new activity trackers promises to collect data on your every move and offer new insights about your health. We tested some of the latest and ...

The Basis B1 Band, an activity-tracking watch that also reads heart rate and skin temperature, got a big update today, with a new sleep-tracking feature that measures deep sleep, light sleep, and REM ...