Xiaomi Watch S4 has become a perfect combination of fashion and technology with its round dial and sturdy and durable design. This watch uses an integrated titanium body with sapphire glass, which is not only sturdy and scratch-resistant, but also very light. It is available in black and white, making it comfortable to wear and stylish. It is equipped with a 1.43-inch AMOLED screen with a resolution of up to 466 x 466 pixels and a pixel density of 326 PPI. The global brightness is increased to 1500nits, the peak brightness can reach 2200nits, and the 60Hz refresh rate ensures clear and smooth display. Even in strong light, the content can be clearly displayed. Whether it is checking the time, health data or message notifications, the display effect is clear and delicate.

In terms of operation experience, the upgraded rotating crown supports rotation and tapping operations, making operation more convenient. The function button/rotating crown is at 2 o’clock on the right side of the watch body, and the power button is at 4 o’clock. In addition, the watch supports a detachable and changeable bezel design, and users can change it according to their mood and occasion to meet personalized needs. The newly added drop reminder function solves the problem of easy loss of the bezel.

In terms of health monitoring, Xiaomi Watch S4 is equipped with a high-precision heart rate and blood oxygen monitoring module, and the heart rate accuracy is 98.2% compared to the gold standard. It supports all-weather heart rate monitoring, blood oxygen saturation monitoring, skin temperature detection, stress monitoring and women’s health management. It can also perform sleep breathing health risk assessment and sleep breathing rhythm analysis, and provide more accurate records through self-developed heart rate algorithms to help users understand their health status in all aspects.

Xiaomi Watch S4 supports multiple functions such as heart rate and blood oxygen monitoring, which can track the user’s health status in real time and remind users in time when abnormalities occur, helping users to better manage their bodies. In addition, it also supports multiple sports modes, including running, swimming, cycling, etc., to meet the sports needs of different users. The built-in high-precision dual-frequency GPS allows you to track more accurate sports trajectories when exercising outdoors.

Xiaomi Watch S4 supports more than 150 sports modes, including six major outdoor sports modes: cross-country, rock climbing, hiking, mountaineering, cycling and skiing. It also supports running posture analysis and intelligent training plans, enhances the ski fall detection algorithm, and has emergency rescue functions at nearby ski resorts. The watch has passed the PADI test certification of the international professional diving organization and supports diving up to 40 meters deep. Independent dual-frequency five-star positioning, support offline maps, accurate positioning without network, route navigation, tracking return and straight return functions, providing professional and comprehensive sports data recording and analysis for sports enthusiasts.

Battery life is an important consideration for smart watches. Xiaomi Watch S4 also performs well in this regard. It is equipped with a 486mAh lithium-ion polymer battery, which can last up to 15 days in normal mode, 5 days in Bluetooth AOD, 7 days in normal mode and 3 days in heavy mode for the eSIM version. With such battery life, you can enjoy a long-term smart experience without frequent charging.

Xiaomi (MI) Xiaomi Watch S4 has become a highly anticipated smart wearable product in the market with its exquisite design, comprehensive functions, strong battery life and high cost performance. Whether it is health monitoring, sports data recording or daily smart functions, it can meet your needs. If you are looking for a smart watch that is both fashionable and practical, Xiaomi Watch S4 is definitely a choice worth considering.

The post 2025 Smartwatch Selection: Why Xiaomi Watch S4 Becomes a Cost-Effective Hot-seller? first appeared on Rucas.

Design and display effect：
When you first see the Xiaomi Redmi Watch 5 Active, you may feel some familiar design elements. Its rounded square appearance reminds people of some well-known brands of smartwatches. This watch uses an aluminum alloy shell and TPU strap, which not only improves the overall texture, but also ensures comfort and durability of wearing. It is worth mentioning that the Xiaomi Redmi Watch 5 Active has a 5ATM waterproof rating, whether it is daily hand washing or rainy day use, there is no need to worry.
Aluminum alloy frame: light and sturdy, suitable for daily wear.
TPU strap: soft and comfortable, suitable for various occasions.
Quick release mechanism: easy to change the strap, more personalized options.

Display：
Xiaomi Redmi Watch 5 Active is equipped with an ultra-high-definition AMOLED display with a peak brightness of up to 600 nits. Whether indoors or outdoors, this screen can provide clear and bright display effects. The screen response speed is also quite fast, and the operation experience is smooth and unimpeded.
AMOLED material: rich colors and high contrast.
600 nits brightness: still clearly visible under strong light.
Large frame design: although there is a certain frame, the cost performance is outstanding.

Function configuration：
Xiaomi Redmi Watch 5 Active is not only a fashionable accessory, but also your health assistant. Built-in heart rate sensor, blood oxygen sensor, accelerometer, gyroscope, ambient light sensor and electronic compass provide you with all-round health monitoring and sports support.
Health monitoring: real-time heart rate and blood oxygen detection, pay attention to your every heartbeat.
Sports tracking: multiple sports modes, accurately record sports data.
GPS positioning: built-in GPS module, you can record sports trajectory without a mobile phone.
Bluetooth connection: easily connect to your mobile phone, message reminders, music control are all available.
Speaker: Supports voice assistant, freeing your hands is more convenient.

Battery life：
The Xiaomi Redmi Watch 5 Active is equipped with a large-capacity battery to meet your needs for long-term use. Whether it is all-day heart rate monitoring or frequent exercise recording, this watch can handle it calmly.
Large-capacity battery: long-lasting battery life, reducing the trouble of frequent charging.
Fast charging: restore full power in a short time, stay energetic at any time.
Xiaomi Redmi Watch 5 Active: Software and Fitness Function Analysis
When exploring the charm of Xiaomi Redmi Watch 5 Active, the uniqueness of the software cannot be ignored. This smartwatch is equipped with a special version of Hyper OS tailored for Xiaomi wearable devices, providing a simple and smooth user experience. Although its functions and user interface are relatively basic and not as comprehensive as Wear OS on Xiaomi Watch 2, in actual operation, the interface responds quickly and almost without delay, allowing users to feel silky smooth when browsing menus.

It is worth mentioning that Xiaomi Redmi Watch 5 Active does not support third-party application downloads. Compared with Wear OS devices that can access the Google Play Store, its built-in applications have covered daily needs. This may be an advantage for users who pursue minimalism, but advanced users may find it a bit restrictive. However, there are still quite a lot of personalization options, especially the dial selection, which makes your watch stand out from the crowd.

For you who love sports, Xiaomi Redmi Watch 5 Active is definitely an ideal partner. It has built-in more than 150 different exercise modes, whether it is outdoor running, indoor fitness, cycling or yoga, it can easily record your every effort. Heart rate monitoring, blood oxygen saturation detection (SpO₂), sleep tracking and other functions are all available to help you manage health and sports data more scientifically.

Xiaomi Redmi Watch 5 Active not only has a stylish design and excellent display effect, but also has a rich function configuration and strong battery life, making it a powerful assistant in your daily life. Whether it is health monitoring, sports tracking or daily use, this watch can meet your needs and is a very cost-effective choice.

The post Xiaomi Redmi Watch 5 Active review: A cost-effective sports smartwatch first appeared on Rucas.