What is the difference between fitbit flex and fitbit one?

Fitbit Flex Wireless Activity + Sleep Tracker

Fitbit Flex Wireless Activity + Sleep Tracker

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2 Answers from the Community

  • Best Answer:

    Also, Fitbit One tracks steps climbed (it has an altimeter built-in), whereas the Flex does not.

  • Flex is a wristband, while One is not. One is a clip.