【Bluetooth-compatible】fast connection and stable signal, suit for IOS & Android.【50M Waterproof】Excellent waterproof performance, not afraid of rain, swimming, diving can be worn. Note: It is not recommended to wear a watch when taking a bath.【EL Light Mode】Use import EL lamp, press ‘Light’ button to see the time clearly in the light.【Message and Call Reminders】When the phone is connected to the watch, if you receive a message or call, the watch will remind you, don’t worry about missing the message or call.【Exercise Data Storage】The app will store your exercise data to help you know your exercise progress and make improvements.【Large Capacity Battery】The watch uses a large-capacity battery, a low-power CPU, and a battery life of up to 18 months.【Other functions】Alarm, step counting, calories, distance, date, day of the week, stopwatcH