Features:Exercise records: step counting, exercise time, exercise mileage, calorie consumption, real-time heart rate during exercise, synchronized upload to the app to save exercise data.Health monitoring: Heart rate measurement (all day heart rate), blood oxygen measurement, blood pressure measurement, sleep monitoring, and synchronously uploading and saving data to the APP.1.39inch retina screen with a resolution of 360X360 pixels, easy to read the value.IP67 waterproof wear worry-free: Each machine has passed strict air pressure, Vacuum waterproof test, to meet the IP67 waterproof standard. Wear it as you wish for daily life.Other functions: Voice assistant, making phone calls, answering calls, rejecting calls, cinema mode, brightness adjustment, wrist flip screen, time display, remote photography, do not disturb mode settings, search for bracelets, weather display, play music, mini games, timer, countdown, WeChat sports, app in the air upgrade, dial switching, dial customization, 123 sports modes (running/walking/badminton/cycling/basketball/football/skipping rope...), Respiratory training.Specifications:Item Name: Smart WatchScreen: 1.39-inch round color screenResolution 360X360Waterproof: IP67Battery Capacity: 300MAHCharging Voltage: 5.0VCharging Current: 0.5CSmart Watch Size: 49.5*49.53*14.1mmMobile phone system requirements: Android 4.4 or iOS 8.0 and above systems phones with BT 4.0Display language of the Watch: Chinese, Traditional Chinese, English, German, Korean, Spanish, Japanese, French, Russian, Arabic, Ukrainian, Italy, PortugalWatch push languages: English, German, French, Italian, Greek, Latin, Spanish, Portuguese, Romanian, Polish, Russian, Ukrainian, Lusenian, Belarusian, Bulgarian, Serbian, Macedonian, Croatian, Bosnian, Thai, Hindi, Sanskrit, Nepali, Cambodian, Vietnamese, Lao, Persian, Kurdish, Pashto Punjab, Turkic, Berber, Malay, TurkishPackage Size: 15.7*9*2.2cmPackage Weight: 115gPackageList:1* Smart Watch1* Magnetic Charging Wire1* User Manual