I donβt know how exactly it measures steps, pulse, etc. the results are similar to the truth. GPS draws accurately. but it was important for me that they keep the charge well (this is in order, 8-10 days with a constantly on dial in the daytime), notifications from applications, and notifications when calling. I started having problems with the last one a couple of months ago. A notification of an incoming call appears, but almost always writes that an unknown contact. There are a lot of complaints in the ratings for the zepp application, but nothing has been fixed.
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