Letsfit Fitness Tracker HR, Color Screen Activity Tracker Watch, Heart Rate Monitor, Sleep Monitor, Step Calorie Counter, IP68 Waterproof Pedometer Watch for Kids Women Men

Some Extras: Use with "VeryFitPro" App: Use the tracker with "VeryFitPro" app for data reports and more functions. Remote Camera Shooting: Operation on the tracker screen could remotely control photography shooting of your phone. Wrist Sense: The screen automatically lights up when you turn your wrist towards you. Model: ID115Plus Color HR Bluetooth version: Bluetooth 4.0 or later Bluetooth transmission distance: 10 Meters (33 feet) CPU: Nordic nRF52832 Sensor: KIONIX KX022-1020 HR Sensor: silicon labsSill42 Screen size:0.96 inch Screen type: TFT LCD color screen Material: upper casing: PC; strap: TPU Dimension: suits for wrist size: 5.4 inch - 7.6 inch Battery type: Li Battery Battery capacity: 65mAh Working time: 5-10 days Charging time: 1-2 hours Weight: 0.87oz (24.8g)