1、Calling Function: After connecting to BT, the watch has the ability to receive calls, check contacts, and display high clean sound with the support of high definition speakers, making communication more free. 2、HD Screen: 1.91 inch 320x386 high resolution curved large screen design. Extending from the screen to the wristband, presented in one piece. 3、Multiple Exercise Modes: With a variety of professional exercise modes, including outdoor running, walking, hiking, swimming, cycling, yoga and so on. Provide professional and detailed exercise data, including exercise time, calories and exercise related indicators, making exercise more free and easy. 4、Ultra Long Battery Life: 260mAh high capacity battery with intelligent power consumption algorithm, greatly optimizing power usage. Under normal use mode, it can be easily used for 3‑5 days. 5、Incoming Call Reminder, Real Time Message Push: After the app is connected and paired, the watch will be able to vibrate to remind the content of the message and caller's number, which effectively solves the problem of not conveniently looking at the cell phone in noisy environments or meetings. Item Type: Smart Watch Material: Aluminum, TPU Weight: Approx. 145g / 5.1oz Display: 1.91 Inch 320x386 Resolution Battery: 3.7V 260mah Lithium Battery (Built In) Support System: For Android 5.0 Or Above And For IOS 10.0 Or Above 1 x Smart Watch 2 x Strap 1 x Charging Cable 1 x Instruction Manual