Product parametersModel I29Appearance size 260*46*11 mm (total strap length * case diameter * thickness)Color Silicone: Black/Blue/Red; Strap: Black/Brown; Steel Strap: Black Steel/Silver Steel; Traditional Strap: Black/SilverWeight 55gBluetooth BLE 5.0Call Bluetooth BLE 3.0Waterproof level IP67Main control chip HS6621, 128M flash, Zhongke call chipAccelerometer SC7A20Heart rate module SC7R30, 128KB+1M, red light+green light module Support dynamic heart rate/blood pressure/blood oxygen detectionDisplay type: 1.28 inch pure round colorful displayTouch screen: full touchResolution 240*240 pixelsBattery Type: Polymer Lithium BatteryBattery capacity: 260mAhCharging time about 60 minutesWorking time: 5-7 daysStandby time about 30 daysMaterial Zinc alloy shell/plastic + environmentally friendly silicone strap/leather strap/metal strapOperating temperature -20C ~ 50CVibration Motor SupportHeart rate chip supportMotor built-in, vibration reminderProduct FeaturesMain functions Split screen, password lock to answer / make calls Support mobile phone to connect to watch to answer electricity and listen to songs Heart rate multi-sport mode sedentary reminder alarm clock setting standby interfaceDefault 5 dials, APP can be customizedAPP supports languages Chinese, English, Chinese [Traditional], Japanese, Korean, French, German, Russian, Polish, Spanish, Portuguese, Dutch, ArabicUI support languages Chinese, English, French, Spanish, Portuguese, Russian, Polish and other 23 countriesSupported languages for information push: Chinese, English, French, Spanish, Portuguese, Russian, Polish and other 23 countriesSupport mobile phone system Android 4.4 and above, IOS8.4 and above 8.4