Basis Peak

Can automatically detect when you're exercising or sleeping ; Continuous heart rate monitoring ; Long battery life ; Comfortable to wear ; Interchangeable band

Expensive for a fitness tracker ; Not as attractive as rival devices ; Doesn't track distance ; Smartwatch-like notifications not available at launch ; The app still doesn't offer much insight into what your data means

Despite its relatively high price (and a few imperfections), the Basis Peak is still one of the best fitness trackers you can buy right now. That's mostly because of how automated it is, with the ability to track your sleep and workouts without you...

Fully automated activity detection. Excellent Web app. Includes heart rate and skin temperature readings. Supports some smartwatch functionality. Waterproof. Good display. Comfortable. Swappable band. Waterproof to 50 meters.

A little chunky for petite people. No buttons; touch-screen only. Doesn't measure distance. Mobile-only wireless syncing, which means an iOS or Android device is required. No stopwatch. No calorie-counting system.

Slim design despite presence of HR monitor. Handy smartphone notifications. Impressively detailed tracking of your life

Unreliable heart rate monitor. Little context offered for all the data it collects. Less useful as a running/cycling/gym companion

There's some impressive tech here and Basis has nailed many of the bugs that used to plague the Peak. It still feels too expensive for what it delivers, though.

Seriously good heart-rate tracking—on a wristband, no less ; Industry-best sleep tracking for a wrist wearable ; Slick industrial design, good battery life, and it's comfortable ; Automatically tracks exercise sessions and sleep; no button presses...

Smartwatch-style notifications can't come soon enough ; Infrequent but still very real heart-rate dropouts are annoying

The real-time heart-rate tracking isn't perfect, but it comes close. And with automatic sleep and exercise tracking, and an improved industrial design, the Basis Peak is much better than its predecessor.

Overall, we think that the Basis Peak is a great fitness and sleep tracker. The amount of data it processes provides you with a holistic overview of your fitness and sleeping habits. The accuracy of the tracker itself is great – we tried to fool it...

The Basis Peak is a fitness-focused waterproof smartwatch that runs for days on a single battery charge. It passively measures heart-rate and steps, with little need for intervention from the user.

Its swipe-based interface is almost too smart for its own good. Many promised features won't be available until future firmware updates. The watch isn't very attractive or stylish, and its mobile app design is far behind competitors like Jawbone.

Despite some smart features, the Basis Peak is a fitness watch that's impressively automatic but too limited and unfinished to feel like a truly great product.

The Basis Peak is a fitness-focused waterproof smartwatch that runs for days on a single battery charge. It passively measures heart-rate and steps, with little need for intervention from the user.

Its swipe-based interface is almost too smart for its own good. Many promised features won't be available until future firmware updates. The watch isn't very attractive or stylish, and its mobile app design is far behind competitors like Jawbone.

Despite some smart features, the Basis Peak is a fitness watch that's impressively automatic but too limited and unfinished to feel like a truly great product.