Sleep monitor-According to the status of sleep,analysis of the quality of sleep and it will vibrate to wake you up or remind you to do exercise,etc.IPX67 waterproof-Comprehensive and strict inplementation of IP67 waterproof and dustproof requirement, you can wear it to take a bath, swimming, all right.Call,information synchronization-Built in large font, call, information, watch vibration tips synchronous display and direct read ,don't have to look at the phone again.