1.57-inch high definition large screen, 200X320 high definition resolution Bluetooth call, keep in touch anytime, anywhere IP67 waterproof, strong and waterproof, not afraid of mountains and seas Rich sports modes, meeting different sports needs and challenging the limits Health monitoring, comprehensive tracking of physiological data and health performance Extra large battery, not afraid of running out of battery when traveling with large batteries Specifications: <tbody> Platform Chipset Supplier Realtek Chipset Realtek8763EWE CPU Frequency or GPU or Operating System Own Ooperating System or Compatible System Android version 8.0 or above, IOS version 12 or above Memory ROM 640KB RAM 578KB FLASH 128MB Display Support yes Type IPS TFT Size 1.57 inch Resolution 200x320 Touch Panel Support support Type Full screen touch Meterial Tempered glass blood pressure blood pressure Blood oxygen Blood oxygen blood sugar blood sugar Connection Parameter BT BT5.1, transmission range: about 20m WIFI no NFC no USB no Sensor G-Sensor STK8321 (Gyroscope no Heart Rate HRS3605 Hall no GPS no E-Compass no Electric Acoustic Devices MIC support Speaker support Motor Welding wire motor Receiver or Battery Type Polymer Capacity 290mAh Charging Method Magnetic suction charging Other Partmeter Keypad 2 buttons LED Indicator Light no Waterproof Level IP67 FOTA OTG Bracelet language Firmware: Chinese, Traditional Chinese, English, German, French, Italian, Spain. , Japanese, Polish, Russian, Portuguese, Korean, Vietnamese, Arabic, Hebrew, Thai, Croatian, Turkish, Czech, Dutch, Indonesia, Malaysia, Finnish, Greek, Romanian, Hindi, Persian, English by default. Mobile APP language APP languages: English, Chinese Simplified, Chinese Police, German, French, Arabic, Czech, Greek, Spanish, Japanese and Polish. Swedish, Italian, Korean, Dutch, Polish, Portuguese, Russian, Finnish, Swedish, Thai, Hungarian, Sloan. Vak, Croatian, Albanian, Turkish, Ukrainian, Hindi Major function 1.57-inch full touch, master 8763E, call, electric reminder push, SMS reminder push, WeChat reminder push, QQ reminder push, exercise record (step counting, mileage, etc.), vibration, more than 100 exercise modes, 4 sets of themes, weather, sleep, heart rate, blood pressure, blood oxygen, sedentary or drinking reminder, music control, remote photo taking, Message reminder, looking for mobile phone or watch, vibration and ringtone selection, incoming call quick message reply, blood sugar, time setting, password screen locking function, OTA boot animation function, key setting, breathing training, female physiology, stopwatch, timer, alarm clock, business card, calendar, exercise history, always-on screen (information screen clock), do not disturb mode, power saving mode, low-power reminder, flashlight, etc. < or tbody>