Uses a larger 1.3in display, larger words, clearer, high-sensitivity touching screen can achieve various operations, intelligent steps, calories, sleep and heart rate monitoring, quickly view various functions, and the touched operation of the large color screen is smoother. Features: You can use your mobilephone to find your wristband, and you can also use your wristband to find your mobilephone , which is very convenient. Compatible with Android and iOS systems. Clear color screen, the night version is clear and not dazzling. Tempered glass screen, wear-resistant and scratch-resistant. Messages are reminded and delivered in real time, can take pictures and record videos. Real body monitoring, including heart rate and sleep status. Environmental protections TPU straps, high toughness, skin-friendly, comfortable to wear. Built-in multiple sports modes, alarm clock, step counting and other practical functions. Wrist optical heart rate, raise your hand to light up, monitor heart rate