Product Parameters: 1. Model: W27 2. Dimensions: 45*38*10.7mm 3. Case Material: zinc alloy 4. Strap Material: silicone 5. Screen: TFT IPS 6. Screen size: 1.75inches 7. Resolution: 320*385 8. Chip: Hs6621 9. RAM+ROM: 256KB+8MB 10. BT: 5.0+3.0 11. Battery Capacity: 230mAh 12. Charging Way: magnetic charging 13. Charging Time: 150 minutes 14. Battery Life: 2-10 days 15. Waterproof: IP68 16. System requirements: Android 5.0+/iOS 9.0+ APP:MActivepro Features: 1. Keep an eye on your health: Heart rate/blood pressure/blood oxygen monitor, ECG, sleep tracker. 2. A good helper for workout: Steps, distance, calories burned, sports mode. 3. A good helper for daily life: BT call, NFC access control, sync notifications, period tracker, BT music, camera remote, lock screen password, find my phone, raise wrist to wake watch, sedentary reminder, stopwatch, AI voice assistant, custom faces, etc. Languages: UI languages:English (default), German, French, Italian, Spanish, Japanese, Polish, Russian, Portuguese, Vietnamese, Korean, Arabic, Hebrew, Thai, Croatian, Turkish, Czech, Dutch, Indonesian, Malay, Finnish, Greek, Romanian. Package List: smart watch*1 charging cable*1 user manual*1 It has an amazing 1.75'' Especially in black background, and the whole interface is integrated with the border almost as black as the AMOLED display. 320*385 Pixel Screen with resolution 320*385 pixel, color saturation up to 90% contrast ratio at 1500:1bright colors. The Artisan Quality .The best materials, the excellent craftsmanship 48 CNC processing.Alloy watch case, Anti-fingerprint processing Gorilla Glass,2.5D mirror integrated.The most Gorgeous we provide you 12 sets of Ul main menu,Customize your personal type Switch different styles, show your personality Scroll Crown Control the menu easily ever Scroll the button zoom in/out the menu,switch the watch face, Control the music volume etc. 200+ Watch Faces DIY your photo as watch face Massive online watch faces satisfy diversified aesthetics,which can be matched and customized as you like.Show your own personality trend. Notifications Push Read messages andnotifications from your phonedirectly on your watch.WeChat, WhatsApp, Facebook...all of them. BT-compatible call Don' t miss important calls Push the phone to the watch in time when the phone calls, answer by one tap, Make calls through the watch, free your hands and make communication more free. 8 types of weather forecasts You know the cold and warm It can automatically sync phoneweather, Sunny, Cloudy,Overcast, Rain, Snow, Fog,Common weather such as hazesand and dust. PIN Lock Safe and reliable Keep your watch safe,Use more at ease. Technology Gesture Recognition There's no need for complicated steps, Simplify the complex,The operation can be controlled by hand gestures, Master the black technology. IP68 waterproof Even run in the water Precise structural design,deep waterproof You can wash your hands, rain, and swim to easily adapt to various environments. Dual core Dual heat Using high performance and low power consumption HS6621.BT-compatiblechip, regardless of graphics processing or the calculation speed is more than 50% faster than the previous generation, Call and music.3.0 chip are handled by separately, Let watch separate management of call mode, Lower power consumption is more reasonable. Smart split screen Freely add widgets Powerful operation ability, support split screen display,Freely add common