Activity & heart rate tracker with color touchscreen – black Bluetooth: Bluetooth 4.0BLE Dimensions: 45.5*18.6*9.3 mm Weight: 17 gr Battery type: Li-ion 80 mAh Standby time: up to 5 days Charging time: 1.5 hours Memory: 7 days of activity Display: Color touchscreen TFT 1.06 inches / 160*64 pixels Sensors: 3-axis accelerometer, optical HR sensor Operating temperature: -20°C to +40°C Water resistance: *IP67, see user guide for full specifications International warranty: 1 year Accessories included: magnetic charger, USB cable Free Android and IOS app