Large Display 1.70-inch full circular touchscreen with 360x360 resolution for clear visibility. Versatile Functionality Features over 100 sports modes, 6 theme styles, and comprehensive health monitoring including heart rate and blood oxygen tracking. Enhanced Usability Equipped with 3 buttons, an encoder, and a flashlight for improved navigation and practical use. Bluetooth Calling Supports BLE 5.3 for seamless communication and notifications directly from your wrist. Long Battery Life 14-day battery life ensures extended use between charges. Specifications Solution Provider App FitCloudPro Main Chip CPU 8773EWE Compatible Systems Android 6.0 and above IOS 10.0 and above Flash Memory 128M GS-STK8321 Screen Type TFT Screen Size 1.70 inches Resolution 360360 Touch Screen ICType CST820 Bluetooth Call BLE5.3 WiFi None NFC None Acceleration Sensors GSensors STK8321 Electrocardiography None Pulse Rate LC09 Blood Pressure None Blood Oxygen None GPS None Body Temperature None Battery Type Lithium Polymer Battery Quantitative Science 3.8V530mAh Charging Method Magnetic Charging Exercise Data Pedometer, Calories, Distance, Exercise Mode Waterproof Rating IP67 Duration 14 Days Charger Specifications DC 5V Keypad Three Buttons Encoder Hand Light FOTA OTG Bracelet Language Firmware Languages Chinese, English, German, French, Italian, Spanish, Japanese, Polish, Russian, Portuguese, Vietnamese, Arabic, Hebrew, Thai, Croatian, Turkish, Dutch, and Hindi. English is the default language. Mobile App Language APP Supports Languages English, Simplified Chinese, Traditional Chinese, German, Japanese, Korean, Spanish, French, Arabic, Czech, Greek, Persian, Italian, Dutch, Polish, Portuguese, Russian, Finnish, Swedish, Thai, Hungarian, Slovak, Albanian, Croatian, and Ukrainian. Major Function 1.70 inch full circle full touch, main control 8773EW, flashlight, 3 buttons, encoder, call, electric reminder push, message reminder push, motion record step counting, mileage, etc., vibration, more than 100 motion modes, 6 sets of theme styles, weather, sleep, heart rate, blood oxygen, sedentarydrinking reminder, music control, remote control photo taking, and mobile phone searching. Password screen locking function, breathing training, female physiology, stopwatch, timer, alarm clock, business card, calendar, sports history, do not disturb mode, power saving mode, low-power reminder, voice assistant SIRI, games, etc.