Xiaomi Watch S5 41mm Specs and Price: The First HyperOS 4 Smartwatch
Expanding its wearable portfolio alongside the new 18 Pro smartphone series, Xiaomi has officially unveiled the 41mm iteration of the Watch S5. Offering a sleeker, more wrist-friendly alternative to the 46mm model launched earlier this year, the new smartwatch serves as the debut platform for Xiaomi’s wearable-optimized HyperOS 4 and introduces a suite of sophisticated health and safety tracking tools.
Priced competitively at 1,299 yuan (approximately $194) for the standard fluoroelastomer strap and 1,499 yuan ($224) for a premium leather option, the 41mm Watch S5 refuses to compromise on build quality. The chassis—available in Black, Sea Salt Blue, and Ceramic White—marries a stainless steel body with a ceramic bezel and a tactile textured crown. Despite the premium materials, the watch maintains a slim 9.9mm profile and weighs just 36 grams without the strap.
The centerpiece of the hardware is a 1.32-inch AMOLED display running at a fluid 60Hz refresh rate. To combat harsh outdoor glare, Xiaomi engineered the panel to reach a staggering peak brightness of 3,000 nits, ensuring complete visibility even in direct sunlight.
Xiaomi Watch S5: Clinical-Grade Health and UV Monitoring
Under the hood, the Watch S5 41mm is outfitted with a robust biometric sensor array. Routine cardiovascular and respiratory metrics are handled by a four-LED, four-photodiode module. More notably, the device incorporates three highly calibrated wrist temperature sensors—accurate to ±0.1°C—which are dedicated to providing precise menstrual cycle tracking and ovulation predictions.
In a unique addition for outdoor enthusiasts, the smartwatch also features dual-band UVA and UVB monitoring. This allows the device to actively measure ultraviolet intensity and provide actionable data to help users manage their sun exposure throughout the day.
Tailored for the Trails and Slopes
Fitness tracking is comprehensive, boasting over 150 distinct workout modes. A dual-frequency GNSS chip ensures high-fidelity route tracking in challenging environments, bolstered by full-color offline maps for untethered navigation.
Winter sports athletes receive special attention via a dedicated skiing mode that logs distance, altitude, and maximum slope. Crucially, this mode incorporates a specialized fall detection system that will automatically trigger an alarm and contact emergency services if a skier takes a hard spill and remains unresponsive.
Xiaomi Watch S5: Ecosystem Integration and Battery Efficiency
Driven by the new HyperOS 4, the software experience is deeply intertwined with Xiaomi’s broader tech ecosystem. Users can manage smart home hardware, view live feeds from connected doorbells, and interface with Xiaomi vehicles directly from their wrists. The operating system update also brings a revamped WeChat application featuring voice-to-text functionality and quick replies. While the watch syncs seamlessly with iOS and Apple Health, Xiaomi notes that certain advanced features remain exclusive to Android or Xiaomi smartphone users.
To power the array of sensors and the ultra-bright display, the Watch S5 relies on a 590mAh battery. Xiaomi claims the device can achieve up to 14 days on a single charge in a restricted power-saving mode, eight days under standard health-monitoring conditions, and a respectable five days with the always-on display engaged.
