Parameters:Bluetooth version: BT 3.0 BLE4.0 dual BluetoothBluetooth chip: PHY6202Heart rate chip: EM7128Bracelet memory: 128M bit flash, rom 512KB sram 138KBScreen display: 1.28 inch IPS color screenBattery capacity: 240mAhWorking time: about 7 daysPhysical buttons: full touch plus dual buttonsMotor: built-in, vibration reminderCharging interface: magnetic chargingWaterproof rating: IP67 life waterproofSensor: VSC7A20System requirements: Android 4.4 and above, IOS 8.0 and above, Bluetooth 5.0APP: TFITWatchlanguages: Chinese, English, Japanese, Polish, German, Russian, French, Spanish, Italian, PortugueseAPP support languages: Chinese, English, Japanese, Polish, German, Russian, French, Spanish, Italian, PortugueseMain Functions :Basic skills:1.Bluetooth call, Bluetooth play music, 8 exercise modes, heart rate monitoring, blood pressure monitoring, blood oxygen monitoring2.Time and date display, step counting, calories, distance3.Sleep monitoring (sleep time, sleep quality)4.Standard exercise function (step counting, distance, calories), GPS track exercise5.4 kinds of UI dial display on the main interface + massive dial + custom dial, multiple message storage and viewingReminder function:1.Call notification, SMS, QQ, WeChat, DingTalk, Wangxin, Sina Weibo, lnstagram, linkeln, Snapchat, Tumblr, Facebook, Skype, Twitter, WhatsApp, Line, KakaoTalk message content pushTo2.Sedentary reminder, alarm clock (5), drink reminder, sedentary reminderSpecial function:1.WeChat sports access, sports goal setting, fitness information sharing2.Weather, stopwatch, smart alarm clock, raise your hand to turn on the screen, turn on the screen time, find the phone, find the bracelet, reject the call, shake to take a photo, do not disturb mode (do not disturb time setting, turn off the vibration of the bracelet, turn off information Reminder) Volume adjustmentPacking List:1*E12 Smart Watch1*Charging Cable1*User Manual1*Original box