1.91 Inch High-definition Large Screen With Metal Casing, Bluetooth Call Watch, Multi Sport Bracelet Watch Features: 【Integrated, Interpreting Aesthetics】The colors is delicate, and the picture is realistic. Whether strong light or darkness, the content is at glance, the details are clearly visible, and the is simpler. 【Exquisite rotating crown】Simply lightly rotate the 'rotating crown' to accurately identify various items,the goal is straightforward and easy to interact with. 【High definition Bluetooth calls make your life more free】Watch Bluetooth call, release your hands anytime and anywhere, making answering more efficient and easy to handle various states such as home, work, and exercise. 【More than 50 sports modes, motion monitoring analysis】Supports up to 50+ exercise modes, based real- detection and algorithm. The watch will record various data during real-, ensuring more efficient. 【 Multiple dial options】 There are hundreds of dial options to choose from,and you can also transfer your favorite pictures from your phone as dedicated dial. Product Description: Product Type: Watch Product color: Support for mobile operating systems: IOS 9.0 or above, Android 4.4 or above Screen size:1.9" Screen resolution:280×320 Bluetooth version: V5.3 Battery capacity:3.7V/mAh Usage time:6 days for heavy use,10 days for light use,25 days for standby, and 3 hours for continuous phone calls and playback Charging form: magnetic suction charging Charging time: approximately hours Package size:15×9×1.9cm/5.9×3.5×0.7in Package weight:90g/0.2lb Product List: 1×Instructiom 1×Charging cable 1×Smart watch