Fitbit Alta HR vs Flex 2 vs Charge 2: We compare the new Fitbit Alta HR, Fitbit’s first fitness tracker of 2017, with the Flex 2 wrist band and Charge 2 tracker. What’s the difference and which Fitbit ...
The biggest difference between the Fitbit Flex 2 and the Fitbit Flex is that the new device is sufficiently water-resistant to be worn while swimming and to track laps and calories burned while ...
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