The Xiaomi Watch S5 46mm combines a classic watch design with high-quality materials and modern smartwatch functionality. It features a stainless steel case with a slim profile and interchangeable strap options for a balanced and durable construction. Equipped with a 1.48-inch round AMOLED display with a resolution of 480 x 480 pixels, an optimized screen-to-body ratio, and a peak brightness of 2500 nits, it ensures clear and high-contrast visibility even in bright outdoor conditions. Powered by an 815 mAh battery, it offers up to 21 days of use under light conditions and up to 14 days with typical usage, supporting long operating times with reduced charging frequency. With Xiaomi HyperOS, the smartwatch enables seamless integration into a connected ecosystem and offers features such as remote device control, customizable watch faces, gesture control, and flexible wrist orientation. Advanced outdoor and training functions include enhanced GNSS performance, offline maps, high-speed Wi-Fi for music downloads, and compatibility with additional fitness equipment, while the 5 ATM water resistance increases versatility in various environments. A comprehensive sensor system, including a 4-LED 4PD PPG module, accelerometer, gyroscope, barometer, and ambient light sensor, ensures precise health and activity tracking. Connectivity is supported via Bluetooth 5.4 and Wi-Fi, while integrated NFC enables contactless payments, with availability and functionality depending on region, bank, and software version.