Basic parametersDimensions (Outline): 44.80X10.8mmStrap material: Silicone strapPackage accessories: (Accessory) one smart bracelet, one charging cable, one manualMajor function: 1.3 full circle full touch, real-time dynamic heart rate, incoming call reminder, information reminder push, exercise record (step counting, mileage, etc.), sleep monitoring, sedentary reminder, calorie calculation, stopwatch, raise your hand to light the screen , Ultra-low power consumption, blood pressure, blood oxygen, 23 sports modes, remote camera control, smart alarm, weather forecast, search for mobile phones, multi-dial switching, WeChat sports, multi-language, intelligent control of screen brightness time.Connection parametersConnection Parameter BT yes, BT5.0, transmission range: about 10mWIFI noNFC noUSB noSensor Heart Rate (Heart Rate) VC31Electroacoustic deviceElectric Acoustic Devices (MIC) noSpeaker (Speaker) noMotor (Motor) Cylindrical MotorReceiver (Receiver) /Battery:Battery type (Type): polymer soft caseOther parametersOther Partmeter button (Keypad): two buttonsPackaging accessoriesAccessory bracelet (wristband): yesUSB data cable: yesInstruction manual: yesBracelet language: Firmware language: Chinese, English, Korean, Japanese, German, Spanish, French, Italian, Portuguese, Arabic, Russian, Dutch, Hindi, Czech, Polish, Turkish Language, IndonesianMobile APP language Mobile APP language App push languages: Chinese, Traditional Chinese, English, Korean, Japanese, German, Spanish, French, Italian, Portuguese, Arabic, Russian, Dutch, Hindi, Czech, Polish Language, Turkish