1.43 Inch AMOLED screen, with high resolution of 466*466, easy to view and read the data Support Bluetooth 5.1 protocol and 128M large memory capacity A variety of UI can be selected, built-in 10 dial styles +8 menu modes, support drag operation + quick center function With the waterproof design, whether washing hands or daily use, you don't have to worry about water ingress When the watch is connected to a mobile phone via Bluetooth, the watch can make Bluetooth call It can monitor blood oxygen and blood pressure and all-day heart rate With built-in 400mAh battery, it can be used for about 25 days when fully charged Specification: CPU JL7013A6 Memory 128M TP G+F, CST820 LCD 1.43-inch AMOLED, resolution: 466*466 Motor 0827 flat motor, soldered wire type speaker 1012, deep waterproof horn MIC 4015, deep waterproof BT Dual mode - Bluetooth 5.1/3.0 (one click connection) Communication format/data transmission Bluetooth Heart rate HR3605 (G-Sensor) SC7A20 Charging method 2PIN magnetic suction line with a spacing of 7.6mm Battery 400mAh V3.7 Waterproof grade IP67 Basic software functions Step counting, sleep, heart rate, exercise, weather, camera control, music control, stopwatch, alarm clock, timer, sedentary reminder Message, brightness adjustment, mute, QR code, blood oxygen, blood pressure, rest screen display, physiological period calendar, exercise records, voice assistant Sports modes walking, running, cycling, skipping rope, badminton, basketball, football, swimming, tennis, rugby, golf, yoga, gym, dance, baseball, elliptical machine, rowing machine, cross country running, skiing, bowling, dumbbells, sit ups, free training, mountaineering, etc Dynamic heart rate Dynamic heart rate trend and data analysis throughout the day Blood oxygen detection Support red light and infrared light sensors for measuring blood oxygen saturation Message and call reminder Actions, shortcomings, microblogging, QQ, Facebook, Twitter, Instagram, Skype, WhatsAPP, Line, Kakao Talk, etc. WeChat Campaign Support synchronous WeChat sports ranking Google Health Support for synchronizing health data Weather Connect to the app and push local weather Dial Supports multiple dials+APP massive dial selection Watch menu language English, Simplified Chinese, Japanese, Korean, German, French, Spanish, Arabic, Russian, Italian, Portuguese, Polish, Vietnamese APP language Danish, Ukrainian, Russian, Bulgarian, Hungarian, Norwegian, Hindi, Indonesian, Hebrew, Greek, German, Italian, Czech, Slovak, Slovene, Japanese, Pashto, French, Polish, Persian, Thai, Swedish, Simplified Chinese, Traditional Chinese, Romanian, Finnish, English, Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean, Malay Supported devices Android phone: Supports the original operating system version 6.0 or higher (settings - for devices, see Android version) For iPhone: Support system versions above 9.0. You can check the version through phone settings - General - About this device. If the version is lower than 9.0, please upgrade first APP DAFIT Package included: 1 x Smart Watch 1 x Charging Cable 1 x English and Chinese User Manual Other things not included