Bluetooth Connectivity 1.6” TFT 2.5D Touch Display Bluetooth V5.0 IP67 Waterproof Rating Heart Rate Monitor (BPM) / Blood Pressure Monitor / Body Temperature Built-in Rechargeable Battery “Keep Health” APP Android / i - OS APP Support General - Display1.6” TFT 2.5D Touch - Resolution240 × 280Bluetooth5.0Bluetooth Range8 – 10mChipsetTLSR9215AERHeart RateLC10ARAM512KBROM64KBFLASH64MBG-SensorSC7A20Dustproof / WaterproofIP67MaterialTPU, ABS, Alloy Metal - Message Reminder - Message Push, Notifier, Redial, Call Reject, Incoming Call, BT Call - Sport and Health Functions - Activity Record, Sleep Monitor, Heart Rate, Blood Pressure, Blood Oxygen, 25 Sport Modes, Sedentary Reminder, Pedometer, Breath Training - Smart Assist Functions - Alarm Clock, Audio Bluetooth, Music Control / Playback, Find Phone, Remote Camera Control, Calculator, Timer, Stopwatch, Weather - Watch Face100+ Selectable via APP PushChargeMagnetic USBBattery300m - Ah Li-Po - Working Time3 – 7 days - Standby Timeup to 14 days - APPKeep Health - Phone Compatibility - Android 4.4 above, IOS 9.0 above