The smartwatch features a 1.28", HD IPS display screen with a resolution of 240x240 for a great visual experienceEasy to replace the strap, standard 22mm width, you can buy your favorite strap to replaceThere are kins of dials, you can custom yourself dialSupport Bluetooth call/Bluetooth music (super clear sound quality), weather displayHealth monitoring: heart rate detection, blood pressure detection, blood oxygen detection, an all-day heart rate detectionSpecifications:Functions1.28 inch IPS screenDetachable 22mm strap StandardMultiple watch faces pushing, Customized watch facesBluetooth calling/BT music(Superior clear audio like sound effect), WeatherHeart rate detection/Blood pressure detection/Blood oxygen detection/Wole-day heart rate monitorTimer, Pedometer, Calorie Consumption, Distance Calculation, Heart rate, Blood pressure, Blood oxygen, Sleep time /quality, On & Off display, Multiple sport modesSleep detection (Sleep time, Sleep quality)Calls to remind, SMS Reminder, Third-party messaging reminders Multilingual push, Clock alarm, Remote Camera, Sedentary reminderFemale physiological period reminderEnglish, Chinese, Japanese, German, French, Spanish, Arabic, Russian, Ukrainian, Russian, Portuguese300mAh big battery, super long standby time, Bright screen under sunshineSynchronous data to APK/APPAPPDownload Dafit" from the Android market, forGoogle Play or for Apple storeOSAndroid system 4.4 version or above; iOS system 8.0 version or aboveBluetoothBLE 5.0ChipsetRealtek8762CKRAMFlash64MBResolution240*240Horn0916Battery capacity300mAhStandby timeAbout 20daysWorking time5-10daysMotorBuilt-in, vibrating reminderPackage included:1 x Smart Bracelet1 x Charging Cable1 x English and Chinese ManualOther items not included