Can mi band leave the phone?

Mi band can work independently. Can save 7 days of user data.

That is to say, you only need to connect your mobile phone once in 7 days to synchronize data. If you don't think the data is important, it doesn't matter if you don't synchronize.

The mobile phone is only used as the display screen of mi band, and its own work does not need the support of the mobile phone. "

Because most of the current smart bracelets use Bluetooth 4.0 for communication, and the communication distance is limited to about 100 meters, the bracelets can't communicate with mobile phones beyond 100 meters, can't synchronize mobile phone information, and can't realize functions such as incoming calls and SMS notification.

However, bracelets generally have their own sensors and data storage, which can be used separately from mobile phones for data statistics, but these statistics cannot be displayed without the display of mobile phones.