1.43inches AMOLED HD display: High resolution and colorful, more details displayed with Good quality dynamic watch face 117 fitness modes: 19 professional modes, including HIIT and Elliptical machine to help you keep fit Nearly 100 extended workout modes offer you more options. Dual band GPS: Dual band positioning technology for a faster positioning and more accurate routing All day health monitoring: Supports all day heart rate, SpO2 monitoring, and Sleep tracking, cares about you in every moment 12 days battery life: Lasts up to 12 days under typical usage mode 200+ watch faces: Over 200 watch faces of various styles MIUI super wallpaper 5ATM water resistance: Can be worn during swimming Bluetooth phone call: Answer your phone calls with just one tap on your watch, more convenient than ever NFC: Supports contactless payment with MasterCard Built in Alexa: Ask the weather, set the alarm, control your IoT devices and more