Fitbit Flex 2 Wireless Activity Tracker and Sleep Wristband may help you track your ... Different models include Fitbit ...

On the wrist, the Fitbit Sense 2 and Versa 4 look identical. And that's because they largely are. Both models share the same aluminum case and AMOLED touch display. Where they vary is under the hood.

Alongside Fitbit Premium there's also new Fitbit hardware – and the new Fitbit Versa 2 looks to be the most stylish and versatile Fitbit to date. It adds Alexa, a brighter screen, a better ...