Specification Brand Bakeey Model TK04 Bluetooth Version BT 4 0 or above Compatible OS Android 4 4 or above iOS 8 0 or above Operating Mode Touch Screen Watch Language Chinese English French Spanish Polish Portuguese Italian Dutch Turkish Russian German APP Name SMART TIME App Language English Chinese French Spanish Italian Hungarian Portuguese Romanian Ukrainian Russian Polish Korean Indonesian Dutch Danish German Swedish Tukish Finnish Czech Japanese Slovak Technical Parameters Hardware CPU MTK2503A ARM7 RAM 128MB ROM 64MB Network Network type GSM SIM Card Micro SIM GPS Support Display Size 1 3inch Type IPS Resolution 240 240pixels Sensor G sensor Heart Rate Sensor Pressure Sensor Battery Battery Capacity 320mAhStandby Time About 4 days Using time About 2 days Charging Time About 2 hours Charging Type Magnetic chargingSpecial Features Bluetooth Calling Support Air Pressure Support Elevation Support Geomagnetic Support Sports Mode Support indoor running outdoor running cycling climbing ect Heart Rate Monitor Support Blood Pressure Monitor Support Sleep Monitor Support Pedometer Support Call or Message Reminder Support Other functions Support Remote Camera Music Player Weather Forecast Alarm Calender Sedentary Reminder Camera Remote Anti lost Alert Type Vibration Auto Light up Screen Support Stopwatch SupportAppearance Details Strap Material Silicone Length about 221mm Width about 22 mm WeightProdu