1.43-inch 466*466px HD touch screen, wider color gamut, clear picture quality after multiple processes polishing and grinding It can be connected to a smartphone via Bluetooth, and can also answer or decline calls on the watch side and view call history A variety of sports modes, whether indoors or outdoors, with a number of professional sensors to measure calorie consumption and heart rate changes, a comprehensive record of body data and scientific analysis effectively improve the level of exercise Built-in professional heart rate monitoring module with mainstream Al algorithm, real-time viewing your heart rate value, recording 24-hour heart rate changes Specifications: Size 45.5mm*45.5mm*6.8mm Weight 45g Wristband size The length is 255mm and the width is 22mm Appearance material Zinc alloy Charging time 2-3 hours Life time 5-- 7 days Waterproof Level IP67 Chipset JL7012A6 Compatible System Android5.0 or above IOS9.0 or above FLASH memory 128MB Screen size 1.43 inch HD screen（AMOLED） Resolution 466*466 enhanced high color gamut Control Mode Full touch screen + buttons Connection parameter Bluetooth BT 5.3 Sensor Heart Rate VC30F-S G-Sensor DA267-LGA12 Battery Charge Mode Magnetic charging Capacity 3.8V/200mAh Language APP Language Chinese, English, Russian, Arabic, Vietnamese, Danish, Thai, Polish, Persian, Spanish, Malay, Greek, French, Italian, German, Portuguese, Turkish, Latin, Romania, Hebrew, Burmese, Ukrainian Watch Language Chinese, English, Russian, Arabic, Vietnamese, Danish, Thai, Polish, Persian, Spanish, Malay, Greek, French, Italian, German, Portuguese, Türkiye, Latin, Romania, Hebrew, Burmese, Ukrainian Software features Bluetooth call, multiple menu styles, support for 200 dials, breathing training, custom dials, stopwatch, brightness adjustment, multiple exercise modes, sleep monitoring, real heart rate and blood oxygen, information push, remote music, remote photography, real-time weather, mobile phone search (connected to the phone), Bluetooth music playback, calculator, split screen display, weather, alarm clock, sedentary reminder, step counting: exercise step counting, calor