How does the scale tell who is using the scale while there are multi-users?
Smart Scale(T9140), Smart Scale C1(T9146), and Smart Scale P1(T9147) and Smart Scale A1(T9120) can track up to 16 users, while Smart Scale P2, P2 Pro, and P3 and C20（T9130）can track unlimited users.
Once you've set up your user profile, then all you need to do is step on the scale and it will automatically determine which user you are according to your weight. The scale can store up to 100 readings and once a smartphone is connected, the data recorded on the scale will sync to the smartphone.
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How does the scale tell who is using the scale while there are multi-users?
