1.3 HD LCD Touch Screen Display; Screen Resolution: 240 x 240 pixels; Built-in BT 4.0 Allows You to Connect to Your Smartphone or BT Devices; Compatible with Android 4.4 & iPhone 8.0 Applications; Double Hearth Rate Monitoring, ECG Monitor, Blood Pressure Monitor and Heart Rate Monitor Record it and share it with Your Doctor via PDF; ECG Sensor: TI 129X Medical Chip; PPG HR Sensor: HRS 3300; Tracks Steps, Distance, Calories Burned and Active Minutes, Camera, Call Reminder, SMS Messages Reminder, Alarm reminder; Remote Control for Camera (Shake it to take picture); Monitor How Long and Well You Sleep; Track Your Phone of Watch If You Misplace It Full Touch Display; Simple and Easy to Use Application(WearHeart) RAM: 128M Waterproof: IP6 Built-in Micro USB 2.0 Port; Rechargeable Lithium-ion Polymer Battery (200mAh)