I have a fitbit charge 2 and an iPhone.
The new(ish) sleep tracking system is awful. The graph is much harder to follow than the old one and doesn’t provide the same amount of information. Also, it doesn’t cope or adjust with time differences at all. I’m currently in Malta (ie one hour ahead of the UK) and after several days here the time I’ve gone to sleep and wake up are still being recorded inaccurately and contradictorily (see screenshot below where at the top it says 2.23am and 9.50am but at the bottom of the graph it says 3.25 and 10.52???) These discrepancies are particularly annoying when it was working fine before Fitbit changed it!
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