AMOLED screen with a size of 1.72 inches and a resolution of 212 x 520 pixels, with very narrow bezels (2.0 mm) providing a wide viewing experience, and extremely minimal borders, reaching a screen-to-body ratio of approximately 73%. AMOLED screen measuring 1.72" with a resolution of 212x520 pixels, very thin bezels, and a screen-to-body ratio of about 73%. High brightness up to 1500 nits in HBM mode, making it easily readable even under direct sunlight. Brightness up to 1500 nits, suitable for strong light. Lightweight and elegant design: Weighs approximately 15.95 grams without the strap, and is approximately 10.95 mm thick (excluding the heart rate sensor protrusion). Elegant and very light design: Weighs about 15.95 grams and is about 10.95 mm thick. Aluminum alloy frame (or ceramic/metal options in some versions) with interchangeable straps of various materials and colors. Aluminum or ceramic frame in some versions, with various interchangeable straps. Water resistance up to 5ATM (equivalent to a depth of ~50 meters under standard test conditions), making it suitable for swimming or water use (but not for deep immersion, steam, or saunas). 5ATM water resistance, suitable for swimming but not for deep diving or saunas. Over 150 diverse sports modes, including advanced swimming modes with lap counting and underwater heart rate tracking in some cases. Over 150 sports exercises, including an advanced swimming mode with lap counting. Integrated health activity: Heart rate monitoring, blood oxygen saturation (SpO2), sleep tracking with comprehensive analysis, stress tracking, and a personal guide to improve sleep quality. Monitoring of heart rate, oxygen saturation, sleep and stress tracking with recommendations. Battery lasts up to approximately 21 days with normal use, and fast charging takes about a full hour for a charge, with power-saving optimizations. Battery up to approximately 21 days with normal use, and fast charging within about an hour. Built-in Xiaomi HyperOS 2.0 operating system, which provides an updated user interface and integration with the Mi Fitness app and synchronization with the smartphone. HyperOS 2.0 system for an enhanced experience with the Mi Fitness app. Price 150