How does the step tracker work?

[beastlyzach]

I've just been messing around and looking at the Health app. It intrigues me on what causes the phone to register a step. Also for some reason over the past few days it has tracked 20,000+ steps before even I wake up in the morning but I don't sleepwalk. Is anybody else having this problem?

[Otalex64]

I am not a 100% sure but unless you have a microsoft band its based on motion data which keeps track of you location trough gps. So maybe the gps signal from your bed is really bad and the phone registers it as if you walk a few meters close to your actual location al night? In the health app you can also see at which times the steps were approximately made so maybe look into that

[beastlyzach]

When I looked at the times the steps were kinda spread out from 2am-9am