With the Xiaomi Watch S5, the manufacturer is expanding its smartwatch portfolio with a model that stands out above all for its long battery life and modern features. In addition to a particularly bright AMOLED display and optional eSIM support, Xiaomi is relying on its own operating system to optimize efficiency and runtime. The watch is therefore aimed at users who are looking for a versatile smartwatch with a focus on suitability for everyday use and fitness.
- Up to 21 days of battery life (9 days with always-on display)
- AMOLED display with up to 2,500 nits brightness
- Optional eSIM for use without a smartphone
- Over 150 sports modes as well as heart rate and SpO2 measurement
Xiaomi Watch S5: Long battery life thanks to HyperOS and efficient hardware
A key feature of the Xiaomi Watch S5 is its exceptional battery life. While many smartwatches have to be plugged in again after just a few days in everyday use, this model lasts up to 21 days according to the manufacturer. Even with the always-on function activated, up to nine days are still possible – a value that is above average in the current market environment.
This is made possible in part by the use of HyperOS 3, Xiaomi’s own operating system. In contrast to platforms such as Wear OS, the focus here is more on energy efficiency than on a large selection of apps. The result is a system that reliably covers basic smartwatch functions while consuming significantly less energy.
With a battery of 815 mAh, the capacity is comparatively generous, which also contributes to the long runtime. The Xiaomi Watch S5 is therefore an interesting alternative, especially for users who do not want to charge their smartwatch every day.
Focus on a bright AMOLED display and independent connectivity
Xiaomi also relies on strong values for the display. The 1.43-inch AMOLED panel has a resolution of 480 x 480 pixels and achieves a peak brightness of up to 2,500 nits. This means that the display remains easy to read even in direct sunlight – a clear advantage for outdoor activities.
The housing is made of stainless steel and measures 46 millimetres in diameter with a height of 10.9 millimetres. Depending on the version, different materials are used for the bezel, including stainless steel, ceramic or forged carbon. With a water resistance of up to 5 ATM, the smartwatch is also suitable for use while swimming.
Another highlight is the optional eSIM function. In corresponding variants, the watch can be used independently of the smartphone, for example to receive notifications or basic communication functions. This is complemented by an integrated GPS module that also enables offline navigation, provided maps have been saved beforehand.
In the area of fitness and health, the Xiaomi Watch S5 offers over 150 sports modes as well as sensors for measuring heart rate and blood oxygen (SpO2). However, advanced functions such as an ECG are not included, which clearly positions the watch in the upper mid-range segment.
Conclusion: Xiaomi Watch S5 scores with runtime and display
The Xiaomi Watch S5 impresses with a strong combination of long battery life, bright display and solid features. The runtime of up to 21 days in particular sets the model apart from many competing products. The smartwatch is initially available in China, where it starts at around 140 euros. An international release is likely, but specific details are still pending.
