Specifications Size:49*43*12.5mm Screen Size?1.96 inch,320*386 resolution Weight:70g Chip:RTL8762DT material:ABS/PC + zinc alloy Water resistance:IP68 Touch screen:Glass + anti-fingerprint coating Bluetooth: Bluetooth 5.0 Battery:320 mAh Li-ion polymer battery (type.) Work time:About 7 days (with heart rate monitoring turned on for 24 hours) Charging method:Magnetic charging stand App:VFIT Compatible Devices:Android 5.1 or iOS 8.2 and above Function: Multiple sportmodes, music control,heart rate detection, blood pressure detection, blood oxygen detection, pedometer, time and date display, step count, calories, distance with display, sleep monitoring, weather interface, UI dial display + massive dial + auto setting dial, mechanical sports style theme UI, 7 message storage and display, stopwatch, find mobile phone, raise your hand to brighten the screen, reminder sedentary, wake up reminder (3), vibration to take photos, , weather, smart alarm clock, raise your hand to turn on the screen, turn on the screen time, find the phone, find the bracelet, reject the call , shake to take a photo, do not disturb mode Supported languagesChinese, English, Korean, Japanese, German, Spanish, French, Italian, Portuguese, Arabic, Russian, Dutch, Indonesian, Hindi, Polish, Turkish Watch supported languages:Watch supported languages: Chinese Simplified, English, French, Spanish, Polish, Portuguese, Japanese, Korean, Italian, German, Dutch, Turkish, Russian, Arabic, Farsi, Hebrew, Thai packing list Watch body (including standard watch strap), magnetic charging base, packaging, manual Tip: 1. This product is only suitable for professional waterproofing. Do not wear in the shower. Do not touch hot water.2. Please charge for more than half an hour for the first use. Watches may freeze long after they are shipped.3. If the product has quality problems, please contact us. We will solve any problem for you. This wearable device collects data through electronic sensors. And the accuracy is at the level of consumer electronics, so there may be slight deviations, which are normal.4. Various activity modes: outdoor running, outdoor walking, indoor running, indoor walking, hiking, stepper, outdoor cycling, indoor cycling, elliptical machine, rowing machine and other 24 sports modes.If you have any problems during use, please contact customer service as soon as possible.