Fitbit Flex Leads Wrist-Tracker Pack: Rich Jaroslovsky

The main drawback to Fitbit’s wearable activity monitors may be how unobtrusive they are. To hear users tell it, their trackers have taken more unplanned trips through the washing machine than a crumpled dollar bill.

Meet the new Flex, which for the first time puts Fitbit’s technology into a wristband. Even simpler than the already uncomplicated clip-on versions, the band is also more powerful, and there’s much less danger of forgetting it’s there.