Product Band material TPUWatch length 250mmScreen size 1.3 "TFT-LCDScreen cover 2.5D high hardness glassTouch screen full screen touchWaterproof grade IP68Accelerometer sensor STK8321Heart rate sensor HX3600Flash memory 64MbVibrating motor button motorBluetooth connection BLE4.2 supports BLE5.0Power supplyRated voltage 3.8VMaximum battery power 0.24WBattery capacity 210mAhBattery type polymer lithium batteryContact type of charging interfaceCharging method Magnetic suction charging (with USB charging cable+charging spring pin) Contact charging (2 electrode points)Charging time is about 2.5 hoursThe battery life is about 10 daysStandby time 45 daysFunctionStep monitoring function supportHeart rate monitoring 10 * 24h heart rate monitoring includes dynamic heart rateSleep monitoring support (display sleep data on APP) (deep sleep, light sleep, awake)Calories monitoring support (displayed on the watch side and APP side) can be viewed on the watch sideData viewing step count, calories, speed, distance, active time Watch can view the exercise calendar and save the last 50 exercise recordsMulti-mode watch has 8 sports modes (9 in total). APP can select walking, running, hiking, cycling, treadmill, fitness, mountaineeringDynamic bicycle, yoga, daily goal, call reminder, information reminder, sedentary reminder, alarm clock reminder, stopwatch, timerSupport hanging upThe watch has an information barYes (the time interval of reminder can be customized)Alarm clock preset (getting up, taking medicine, going to work, etc.) There are relevant prompt icons (getting up, taking medicine, going to work, etc.) after the alarm clock reminder is turned offsupportMusic control supports opening music app, starting, pausing, and previous and next songFind mobile supportBreathing training support (adjust the user's breathing rhythm and relax the mood)Power-off and restart support the watch terminal to operate power-offThe time and date display time and date interface needs to display the number of steps, calories, and power, supporting 12 and 24 hoursMultiple dials can be selected at the watch endWearing experienceSkin-friendly, lightweight design without impactThe fuselage is ergonomicWrist strap is dirt resistant, easy to exhaust and sweatInteractive experienceSimple interaction, fast and uncomplicatedThe UI is simple, clear and understandable (mainly displaying data), with dynamic motion and scientific visual effectsIncrease the value of product accessories through good visual effects and user experienceEnvironmental environmentOperating temperature - 20C to 40CWorking humidity 10% - 90% RH (non condensing)Storage temperature - 20C to 50C