S8 Ultra Watch 49mm Latest Bluetooth Calling Series 8 AMOLED High Resolution with All Sports Features Health Tracker, 5 Days Long Wireless Charging Battery, Bluetooth Unisex Smart Watch Black Warranty Description: Manual Entry Ultra Space Aluminium case with wireless charging 2.2 INFINITE DISPLAY BT:5.0 TP:cob capacitance multi touch Heart rate sensorTemperature Sensor:Heart rate and temperature in one Motor:YES Charging mode:Magnetic wireless charging Microphone:YES Side key:YES Two in one loudspeaker and handset Receiver Power amplifier:YES Battery capacity:220mah, longer battery, APP System IOS 9.0 and above, Android 5.0 and above