C21 Pro 1.39-inch Outdoor Smart Watch Bluetooth Calling Multi-Sport Mode Fitness Bracelet with Heart Rate Monitoring - Silver 8763EWE, 128M large memory, Bluetooth 5.2 protocol Support Bluetooth calls, one-key connection, and more convenient call scene Cool UI, support drag and drop operation + shortcut center function Large memory, 4 menu modes+7 UI scenes, A large number of UIs to choose from Support 8 sports modes, APP can add 100+sports modes 1.39-inch high-definition large screen, resolution 360*360 VC30F low-power high-definition heart rate and blood oxygen, more accurate detection. Support for testing black skin tone IP68 depth waterproof, suitable for wearing in more environments Specifications: Hardware CPU 8763EWE Memory 128M TP Capacitive touch TP, Hynitron 816D Screen 1.39inch 360*360 resolution HD big round screen Motor 0830 Flat Motor, Wire Bonded Bluetooth BT 5.2 Horn 1511, depth waterproof horn MIC 4015, depth waterproof Data Transfer 8763EWE Heart rate VC30F Pedometer STK8321, Accurate step counting Charging 2PIN magnetic charging cable, Spacing 2.8mm Battery Capacity 410mAh (polymer pure cobalt battery)6.5*20*30mmV3.8 high voltage Waterproof depth waterproof Software Basic function Shortcut bar (control center), Exercise record (step counting, distance, calorie calculation), heart rate, blood pressure, blood oxygen, sleep, weather, WeChat sports, information, reminders (messages, drinking water, sedentary, alarm clock), Women's Health cycle, stopwatch, countdown, find the phone, find watch, camera control, dial switching, music control, Settings (language selection, brightness adjustment, bright screen duration, vibration setting, factory reset, version information), components (function editing), password lock, breathing training, sports, sports history, do not disturb mode, power saving mode, low power reminder, voice assistant (SIRI), call function, favorite contacts, phone dial, split screen function, scan code connection, calculator, calendar, OTA 123 Sports 8 commonly used sports modes: walking, running, mountaineering, cycling, basketball, swimming, badminton, and football; the APP can add: Tennis, rugby, golf, yoga, gym, dance, baseball, elliptical machine, rowing machine, cross country running, skiing, bowling, dumbbells, sit-ups, free training, and more than 100 sports. Heart rate All-day dynamic heart rate trend and data analysis Blood oxygen test Support red light, and infrared light sensors to measure blood oxygen saturation Message and Call Alerts Phone, SMS, WeChat, QQ, Facebook, Twitter, Instagram, Skype, WhatsApp, etc. WeChat campaign Support synchronizing WeChat sports ranking Weather Connect APP, push local weather data Watch face Support 7built-in watch face + APP can select the rich watch face Watch menu language Chinese, English (default), German, Korean, Spanish, Japanese, French, Russian, Arabic, Ukrainian, Italian, Portuguese, Romanian, Polish, and Turkish in total 15 types FitCloud Pro APP language Danish, Ukrainian, Russian, Croatian, Hungarian, Hindi, Indonesian, Trkiye, Hebrew, Greek, German fried Italian, Czech, Slovak, Japanese, French, Lanzhou, Thai, Swedish, Simplified Chinese, Traditional Chinese, Finnish, English, Dutch, Portuguese, Spanish, Vietnamese, Albanian, Arabic, Korean Da Fit APP Android Support OS version 6.0 and above (Settings-About the device, check the Android version) IOS Support OS version 9.0 and above. (Settings-General-About, check the version, if the version is lower than 9.0, please upgrade first.) Package included: 1 x Smart Watch 1 x Charging Cable 1 x English and Chinese Manual Other items not included Package included: 1 x Smart Watch 1 x Charging Cable 1 x English and Chinese Manual Other items not included