• Tracks steps and sleep with accuracy
  • Hard to lose
  • Bluetooth syncing
  • Vibrant user base across Fitbit line for social step competition


  • Five day battery life unimpressive
  • Clasp a bit fussy to use
  • No numeric on-device display

At A Glance

The Fitbit Flex matches the core functionality of the company's other socially-connected digital pedometers, but it's worn on the wrist. Its Bluetooth syncing and durability help it best competitors like the Jawbone Up.

Manufacturer’s Website

Fitbit Flex