Accurately identify the movement posture and capture the heart rate change every second Can switch a variety of exercise modes, record the duration of exercise and burn calories IP68 waterproof. Has excellent sealing and dust resistance, not afraid of getting wet, you can wear it in rainy days Record sleep data all the time to help rational planning. Improve sleep, improve sleep quality Support custom dial settings to create your own personalized dial according to your wearing and mood Can be connected to a mobile phone to obtain song information and play mobile phone music Specifications: MaterialScreen size1.5-inch color screenScreen typeTFTMiddle frame materialPlasticCover materialGlassWristband materialTPUProduct sizeLength 39.7mm Width 35mm Thickness 10mmHardwareMain chip5515Acceleration sensorSupportPPG heart rate sensorPD70-01C-TR7Touch ICHynitron 816STouch modeFull touchPhysical buttons1MotorFlat motorDisplay1.5-inch square screen, TFT IPS full viewing angleResolution240*280Flash size128MBBluetooth versionBLE5.0Bluetooth antennaFPC welding antennaBattery typePolymerBattery capacity170mAh 3.7VCharging methodMagnetic cable charging DC-5VCharging timeAbout 1 hourWaterproof levelIP68APP supported languagesChinese, German, English, Italian, Spanish, French, Japanese, Russian, Portuguese, FrenchWatch supported languagesChinese, English, German, French, Japanese, Portuguese, Russian, Italian, Spanish, PolishHealth MonitorIP68 waterproofSupportHeart rate detectionSupportHeart rate timing monitoringSupportBlood pressure detectionSupportSleep monitoringSupportStandard FunctionStep calculationSupportExercise distanceSupportCalorie consumptionSupportRaise hand to light up the screenSupportTwist wrist to light up the screenSupportFlashlightSupportBackhand to tur