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Package Included: 1* smart watch 1* charging line 1* instructions Specifications: Product: Full screen touch smart watch. Screen type: TFT. Screen size: 1.7 inches. Touch type: full screen touch. Resolution: 240RGB*280. Chip: GR5515. Bluetooth: 5.1 Bluetooth chip with low power consumption. Memory: RAM256KB, ROM64Mb. Charging mode: magnetic suction line. Battery capacity: 200mAh. Charging time: about 2.5 hours. Life time: 5-7 days of use and 25 days of standby. APP：Da Fit Waterproof grade: IP68. Bracelet size: L*W*H=44.7*37*9.9. Strap: total length 255MM, adjustable length 155-235M. Material: main body: plastic+zinc alloy wristband: silicone+stainless steel. Compatible system: Android4.4 or above, I0S8.0 or above. Support functions: number of steps, sleep, heart rate, exercise data record, music control, custom dial, message push, daily alarm clock, photo control, weather information and so on. Description: 1.7-inch IPS HD full-color display, superior HD quality experience. 24-hour heart rate monitoring, built-in optical heart rate sensor, combined with intelligent heart rate algorithm, pay attention to your heart rate changes around the clock. Call information real-time reminder, information, call, watch rejection, mute function, sedentary reminder, drinking water reminder, APP message notification, all available, intelligent vibration reminder, to avoid missing important information. IP68 waterproof, meet the daily waterproof needs, so that you can relax in outdoor activities, wash your hands or wear them in the rain with more confidence, and play as you like. Professional sleep monitoring, a good night's sleep is very simple, sleep analysis technology, professional interpretation of sleep characteristics, and provide scientific advice to help you improve your sleep. A variety of sports mode detection, a variety of data to help you train. The function of turning the wrist on the screen makes it more convenient to check the time. Supported languages of APP: Danish, Ukrainian, Russian, Bulgarian, Bokemar, Norwegian, Hindi, Indonesian, German, Italian, Czech, Japanese, Pashto, French, Polish, Thai, Swedish, Simplified Chinese, Traditional Chinese, Finnish, English, Dutch, Portuguese and Spain.