1.55" HD touch display High-resolution and colourful, more details displayed Bigger screen-to-body ratio, 10% increase from previous model Mi Watch Lite. Better visual and touch control experience. Compact designMultiple colour options Three colours for the watch frame and three more for the watch strap Switch up your style Freely switch between 100+ watch faces Multiple trendsetting combinations to match your mood and outfit of the day. 100+ workout modesTrack your exercises like an expert 17 professional modes, including HIIT and Yoga to help you achieve your fitness goals you wanted. 100 extended workout modes that offer you more options. High-precision GPS chipSupports the four major global positioning systems The built-in GNSS chipset comes with improved performance for more precise position tracking. Four major global positioning systems--GPS, GLONASS, Galileo, BDS--are supported. Blood Oxygen Measurement Blood oxygen saturation (SpO₂) level indicates the amount of oxygen in the blood. Get an SpO₂ measurement anytime anywhere for your peace of mind. Supports continuous SpO₂ tracking during sleep. Sleep Monitoring Monitors your sleep 24/7 and provides detailed reports on deep sleep, light sleep and REM stages to help you find out what is going on during your sleep. 24-Hour Heart Rate Tracking Built-in high-precision PPG sensor to track your heart rate 24 hours a day. Sends alert when abnormal heart rate is detected. More healthy choices Stress Monitoring Continuous stress monitoring helps you achieve a better work-life balance. Breathing Three training modes help you better adjust your breathing, relax your mood and relieve stress Female Health Record your monthly period and receive useful reminders beforehand.