Does Fitbit Flex Track Heart Rate

Does Fitbit Flex Track Heart Rate
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I figure it does, but I want to clarify. The booklet that it came with wasn't very helpful. I'm asking so that when I go in the gym, will it.
The Fitbit Flex 2 is one of the most popular fitness trackers on the market today.. While this fitness tracker does not have a GPS or heart rate function, there is a .
Wear the band loosely enough that it can move back and forth on your wrist. If you use Fitbit products with Purepulse Heart Rate tracking, for better heart rate .

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