This is a multi-functional intelligent bracelet. 1.78-inch large screen, support heart rate, blood-pressure, ECG, sleep monitoring and multiple languages. It will give you nice experience!<br/>Features: The 1.78-inch high-definition large screen brings a clear visual experience on the wrist. Clear voice calls and receive messages and notifications more conveniently. Heart rate &amp; blood-pressure&amp; blood-oxygen and sleep measurement technology, 24 hours monitoring. Record data in real-time and focuse on your health during the process of motion. IP67 waterproof, high water resistance level, satisfy the needs of daily life such as washing hands, being caught in the rain and swimming. Easy to use and perfect for running and outdoor sports. More functions, support exercise step, distance, calory road, shake to photograph and so on.<br/>Specifications: Screen: 1.78inch colorful Color: Black / White(Optional) Resolution: 320×385 Bracelets Batterys: 1*3.7V 200mAh Photoelectric sensor: hrs3300 Charge mode: magnetics suction charge BT: BT 5.0 &#43; 5.0 dual mode Water-Resistant Level: IP67 Support Tystem: Compatible with Android 5.0 and above &amp; IOS 9.0and above APP Language: Multi Language Package Size: 105*105*60mm/4.13*4.13*2.36in Package Weight: 165g/5.82oz<br/>Packing List: 1x Watch, 1x Manual, 1x Charge cable