Product parameters:   1.Master chip:BT8918B. 2.Bluetooth for calls:support. 3.Bluetooth version:4.0/5.0. 4.heart rate sensor：support. 5.Pedometer sensor：support. 6.Screen display：2.02-inch display screen，320*380PX. 7.Battery capacity：380mAh. 8.Button method：Touch+encoder button+power button +Sports shortcut key. 9.Motor：support. 10.Charging port：Wireless charging. 11.Waterproof level：Living waterproof. 12.APP：HryFine.       Major function:    "High-definition bluetooth fairy tale, off-screen pointer, cover hand off screen, custom picture, APP background download picture, QR code (download, connection two-in-one), find mobile phone, calendar, motion track, restart, message push , remote camera, sleep monitoring, body temperature monitoring, weather, blood pressure, voice assistant, my QR code, button definition settings, blood oxygen, breathing, dial, pedometer, timer, menu style, factory reset, settings ( Screen off time, raise wrist to turn on screen, NFC, brightness, button definition, vibration intensity, do not disturb mode, password setting, language, time and date setting, connection APP, factory reset, restart, shutdown, about), phone (contacts, Call history, dial pad, call settings, emergency call), calculator, heart rate, language selection, information about the watch, alarm clock, sports mode, Bluetooth music, Bluetooth calls, stopwatch, screen off time, vibration intensity, time and date settings, password Lock.   Drop-down menu: Bluetooth switch, do not disturb mode, brightness adjustment, one-key lock screen, weather, shutdown, payment code, Douyin,always-on setting, NFC, settings, alarm clock, vibration switch, menu style, factory reset.   Slide up menu: recent tasks.   Swipe right: time and date, emergency call, step counting, 4 recently used functions.   Swipe left: Add applets (heart rate, blood pressure, sleep monitoring, blood oxygen, exhalation training, step counting, weather, music, body temperature monitoring). "   Screen size: 2.16 inches   Pixels: 420*486 IPS   Compatible System (Compatible System) Android4.4 (inclusive) and above, IOS9.0 (inclusive) and above   FLASH memory (FLASH memory) RAM: 192KB, ROM: 256KB Flash: 128M   Watch languages: 1. Chinese 2. English (default) 3. Russian 4. Spanish 5. German 6. Italian 7. French 8. Portuguese 9. Polish 10. Dutch 11. Turkish 12. Japanese 13. Traditional Chinese 14. Hebrew 15. Czech 16. Arabic 17. Thai 18. Greek 19. Romanian 20. Slovak   Main body: zinc alloy + tempered glass   Battery capacity (Capacity) 380mAh   Charging Method Wireless Charging   languages：   1.UI language：English (default), French, Arabic, German, Indonesian, Italian, Malaysian, Persian, Spanish, Russian, Vietnamese, Czech, Turkish, Polish, Portuguese, Greek, Filipino, Thai, Chinese, Netherlands, Finland, Ukraine, Sweden, Hungarian. 2.Message push：English (default), French, Arabic, German, Indonesian, Italian, Malaysian, Persian, Spanish, Russian, Vietnamese, Czech, Turkish, Polish, Portuguese, Greek, Filipino, Thai, Chinese, Netherlands, Finland, Ukraine, Sweden, Hungarian. 3.APP Support language：English (default), French, Arabic, German, Indonesian, Italian, Malaysian, Persian, Spanish, Russian, Vietnamese, Czech, Turkish, Polish, Portuguese, Greek, Filipino, Thai, Chinese, Netherlands, Finland, Ukraine, Sweden, Hungarian.   Notes：   1.Wearable devices monitor human activities through electronic sensors. They are at the level of consumer electronics. It's normal to have certain deviation. The health test results of the watch are for reference only, and can not be compared with medical equipment. When the watch is placed on the surface of the object, there will be heart rate / blood pressure and other test results. It is normal and not a product defect. 2. As the firmware is continuously updated, the user interface will be updated accordingly. The images are for reference only, and everything is subject to the actual product. 3. This product is an electronic product. Do not take a bath with this product. Do not expose it to heat under high temperature. Do not soak it in water . 4. Please download APP firstly, and bind the watch, Do not use the mobile phone Bluetooth to directly link the watch. If it is already connected, please delete the matched watch from the mobile phone Bluetooth matching device. 5. Due to the difference of light and screen, the color of the item may be slightly different from the picture. Thank you!   Tips:  If you have any questions during installation and use, please consult the product manual or Google, there are plenty of tutorials available on YouTube. Due to the color of different products of various displays, there may be a little color difference from the picture, but it does not affect the use. Maintenance: keep the items clean and wipe with water or alcohol or soap properly. Do not charge electronic items at low power. Keep good charging condition, which is helpful to prolong battery life. After sales: Jumia offers you a full service If you're not interested in this，You can open at and look at other products of the same type. Comment and share your experience of using the product so that more friends can know about it .Positive reviews will help boost Jumia Pay credit ratings. I hope our products can bring you a perfect experience, thanks (^_^)