Features: 1.54-inch high-definition full-square large screen, 240*240 resolution,brings a clear visual experience on the wrist. Heart rate blood-pressure 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. Calls and messages notifications is more conveniently. Easy to use and perfect for running and outdoor sports. Anti-lost design makes the watch not easy to lose. Built-in high-quality stereo speaker, provides you enjoyable music experience. Supports two styles of UI, multi-grid style or four-grid style. More functions, support exercise step, distance, calory road, two-way lookupand so on.