Product descriptionB material: TPUDisplay size: 1.1 AMOLED color screenDisplay resolution: 126 (R.G.B) 294Battery capacity: 90mAhWorking time: 7 daysStby time: 20 daysHardware specification: main control chip TLSR8251F512ET32\/5 5mmQFN32Gravity sensor: SC7A20\/2 2\/LGA12Temperature sensor: thermistor sensorHeart rate sensor: Shilan Micro SC7R31Bluetooth version: BLE 5.0Bluetooth range: 8-10mStorage memory: 512KBand64KBand32MbData storage: 7 daysWaterproof grade: IP67Charging method: magnetic chargeMain function: exercise, health, daily activity record (step count, calories, distance)Sports mode (walking, running, cycling, indoor running, free training, football, basketball, badminton, rope skipping, push-ups, sit-ups, mountaineering, tennis, high-intensity training, indoor cycling, fitness, rugby, golf, dynamic cycling, weightlifting, roller skating, dancing, yoga, indoor walking, hiking.),Sleep monitoring (deep sleep, light sleep, awake), sedentary reminder, goal achievement reminder, drinking reminder, sports data synchronization Google Health\/Apple Health, information reminder, call reminder (number\/contact), phone rejection, intelligent assistant.Support magnetic suction charging mode1.1 \