A nostalgic look back at the budget fitness tracker

The Fitbit Flex was a step backwards, for all intents and purposes. It arrived with an ugly rubbery band, provided less accurate step tracking than its clip-on predecessors, didn’t really have a proper display and was bereft of the altimeter admired by owners of the Fitbit One and Ultra wearables.
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https://www.wareable.com/fitbit/remembering-the-fitbit-flex-7353