RT @TheRegister: University study finds Fitbit's heart rate data out by 20 BPM https://t.co/8TtIZCvBNZ 0 atbildes

Mārtiņš Mičulis
(2016-05-23 07:25:40)
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RT @TheRegister: University study finds Fitbit's heart rate data out by 20 BPM https://t.co/8TtIZCvBNZ

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