Screen size: 1.39 inches 454 * 454PX Battery capacity: 280mAh Waterproof grade: IP68 Wrist strap material: belt/tape/steel belt Specifications: 1. [Fine steel material] The flat surface created by tempered glass processing technology, combined with exquisite cutting sculpture technology, interprets craftsmanship aesthetics, material selection, design, and craftsmanship, all of which are rigorous and exquisite 2 [1.39 inch full screen] 1.39 inch high-definition full screen, high pixel display resolution plus professional sharp screen display technology, make each picture display clear, flexible, narrow edge design, and reject thick and heavy borders 3[Double click touch to light up the screen] With the advanced non dormant touch IC, the off screen clock interface is more convenient to double click to light up the screen display, condensing ingenuity and craftsmanship 4 [ Multi sport mode ] can monitor most important data such as exercise center rate, distance, speed, and calorie consumption in real-time, helping you unlock different skills and present better exercise performance. Package Included: 1 * Watch 2 * Watch strap 1 * USB cable 1 * Instructions