Can multiple users share the same eufy Smart Scale(T9140/T9146/T9147)? And how does the measurements sync to the correct user profile?
Yes, eufy Smart Scale supports multiple users using the same account, and it also supports multiple accounts with different users using the same scale.
You can refer to the following detailed instructions:
How do multiple users share the same eufy Smart Scale using different EufyLife accounts?
How do multiple users share the same eufy Smart Scale under one EufyLife account?
It is recommended that the user opens the app first to ensure a "Connected" status before weighing to make sure that the measurement data can be successfully synced to the device/account. If not, the measurement data will be recorded on the scale, and then sync to the next account/device when it connects to the scale.
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