Waterproof Fitness Tracker Heart Rate Monitor Smartwatch

SIM Card Available: No System: Android OS System: ios GPS: Yes Type: On Wrist Compatibility: All Compatible ROM: <128MB Function: Passometer Function: Fitness Tracker Function: Sleep Tracker Function: Mood Tracker Function: Message Reminder Function: Call Reminder Function: Push Message Function: Big Three Needles Function: 24 hour instruction Function: Chronograph Function: Alarm Clock Function: World Time Function: Power Reserve Function: Speed Measurement Function: Month