The Fitbit Flex 2 is a solid upgrade over the original, but it’s still a rather basic activity tracker for the money.

Comfortable and light ; Fun software ; Water resistant

Battery life not great ; Slow to charge ; Feature-light hardware

The Fitbit Flex 2 is a solid choice for those after something simple, as well as those who are in need of a water-resistant tracker. It's smaller and sleeker than the original, but at the cost of battery life.

Waterproof, slim and stylish design, interchangeable accessories, accurate basic tracking, good value, great app platform

No elevation data, no GPS tracking, basic features, battery life could be better still, no third-party notification support

The Fitbit Flex 2 is a simple yet effective tracker with a more exciting design than its predecessor. Not a great deal has changed in terms of looks, but Fitbit has done enough to ensure the new-generation model doesn't look like a boring rubber band....

The Fitbit Flex 2 is a chic and slim, lightweight wristband (with bangle and pendant accessories) that tracks and monitors your daily activity and sleep patterns. You can compete with Fitbit-using friends. The waterproof Fitbit Flex 2 will give you...

Slim and light ; Water resistant ; Choice of bands

Basic tracking ; Short battery life

If all you want is a simple motion tracker that can measure your daily steps or swim sessions, the Flex 2 is perfectly fine. However, anyone who’s serious about their workouts or who demands a stronger set of features should definitely look elsewhere..

Accurate tracking ; Comfortable fit ; Easy-to-use app

No display ; Cheaper trackers are available

A good, cheap fitness band with a great app

The Flex 2 is slim and swim-proof, can track basic fitness data and supports a variety of accessories, including pendants.

It lacks a display and the more advanced features of other Fitbit trackers. Lacks heart rate tracking. The LED lights can be confusing; battery life should be better.

The Fitbit Flex 2 doesn't have all of the bells and whistles of other trackers, but it's finally swim-proof, and it does the basics and it does them well.

These small niggles aside, though, I like the Fitbit Flex 2. It works well, it’s waterproof, and it will track everything you need it too, including swimming, for a reasonable price. The only things missing are heart-rate monitoring and a barometric...

Waterproof ; Swim tracking ; Automatic sleep tracking ; Affordable at $100 ; Good-looking jewelry style accessories available from both designers and Fitbit

Swimming and automatic activity tracking requires extra steps to activate ; Battery life isn’t great with things like Swim Tracking and Reminders to Move tracking on ; Does not fit original Fitbit Flex bands or accessories

Overall the Flex 2 is an elegant and impressive fitness tracker at a fantastic price point. You no longer have to worry about looking like you’re getting ready to compete in the Ironman with the new jewelry style options available for the Flex 2, and...