What are the disadvantages (if any) of using fitness trackers?
It never occured to me that there could be disadvantages.
https://tinyurl.com/y3zpfwc8 (google images /fitness trackers)
Using Fluther
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It never occured to me that there could be disadvantages.
https://tinyurl.com/y3zpfwc8 (google images /fitness trackers)
or