Xiaomi Watch S4 Shines With Stunning Display & Smart Upgrades | Image Source: www.gsmarena.com
March 9, 2025 – Xiaomi officially launched the Xiaomi Watch S4 on the world stage, introducing a series of smart references that improve its attractiveness as an economic smart watch. With an updated screen, a customizable bezel system and a refined operating system, the S4 is based on the success of its predecessor, now an accessible price of €159.99. Despite the lack of LTE support, Xiaomi’s latest wear and tear offers impressive longevity, essential smartphone features and perfect integration with the Xiaomi ecosystem.
What’s up with the Xiaomi Watch S4?
The Xiaomi Watch S4 brings several improvements to the previous model. One of the most notable updates is its 1.43-inch ultra-light AMOLED display, which now has a maximum brightness of 2,200 nits, an impressive 600-nit jump on the S3 watch. This ensures exceptional visibility even in light outdoor conditions.
In addition, the S4 introduces a swivel crown for smoother navigation, replacing the simple layout of your predecessor’s buttons. Xiaomi’s latest HyperOS 2.0 powers the device, which promises better system efficiency and perfect connectivity with other Xiaomi products.
Other key improvements include:
- Brighter AMOLED display (2,200 nits peak brightness)
- Rotating crown for improved navigation
- HyperOS 2.0 for a more refined user experience
- Enhanced fitness tracking with over 150 sports modes
- Upgraded L1+L5 GNSS for precise outdoor navigation
Design and customization: A watch that matches your style
One of the strengths of Xiaomi Watch S4 is its interchangeable bezel system. Unlike traditional smart watches, which often limit customization to only turn, the S4 allows users to turn off the bezel easily. Xiaomi has improved this mechanism, ensuring a safe setting with a bayonet-style locking system. When a bezel is removed, the watch vibrates as a reminder until it is reactivated.
The 47 mm aluminum alloy case gives the watch a premium feel, while its ceramic rear plate ensures comfort and durability. 22 mm standard straps offer additional customization options. The watch is available in Silver, Black and Rainbow editions, with different combinations of bezel and bracelet.
Fitness and Health Surveillance: More than steps
Xiaomi loaded the S4 watch with integral fitness monitoring capabilities. The aircraft supports more than 150 sports modes, including specialized surveillance for water sports, outdoor activities and force training. The enhanced L1 + L5 dual-band GNSS provides more accurate location tracking for outdoor exercises.
Health surveillance functions include:
- 98% accurate heart rate monitoring
- Blood oxygen (SpO2) tracking
- Sleep tracking with detailed sleep stages
- Stress monitoring with real-time feedback
- Breathing exercises and relaxation reminders
Unlike some high-end smart watches, the Xiaomi Watch S4 does not include ECG functionality or body composition analysis. However, it provides an overview of a health dose, which adds heart rate, stress levels and SpO2 readings in a single report.
Software & Connectivity: A seamless Xiaomi ecosystem
The S4 watch works on HyperOS 2.0 owner of Xiaomi, allowing smooth connectivity with Xiaomi smartphones and other smart devices. The interface is designed for intuitive navigation, taking advantage of the swivel crown for quick menu movement.
The main features of the software are:
- Bluetooth call functionality (no LTE support)
- Smart notifications and quick replies
- NFC support for contactless payments (availability varies by region)
- Remote control for Xiaomi cameras and smart home devices
Although the watch does not support third-party application installations such as Wear OS devices, it covers all essential smartwatch features outside the box.
Battery life and load: Two weeks of use?
One of the most announced features of Xiaomi Watch S4 is its battery life. Xiaomi claims that the 486mAh battery can last up to 15 days on a single charge under optimal conditions. However, use in the real world suggests that heavy users – who keep track of heart rate, tracking GPS and a screen still activated – can wait about five days of battery life.
The watch is charged through a 2-pin magnetic charger, but still uses a USB-A connection. In 2025, a USB-C charging option would have been a welcome update. Despite this, a five-minute load provides enough energy for two days of moderate use, making it a convenient travel partner.
How is Xiaomi S4 clock compared to competitors?
At its price point, the Xiaomi Watch S4 is mainly competing with smart economic watches rather than premium options like Apple Watch or Samsung Galaxy Watch. Here are some alternatives:
- Huawei Watch GT5 – Similar design, strong battery life, but lacks interchangeable bezels.
- CMF Watch Pro – Offers swappable bezels like the Xiaomi Watch S4 but has a lower-quality display.
- OnePlus Watch 3 – A pricier alternative with a more premium feel but fewer customization options.
The biggest competition can come from Xiaomi S3’s own watch, which offers many of the same features at a lower price. For those who already have S3, updates may not be convincing enough to warrant an immediate update.
In the end, the Xiaomi Watch S4 stands out for its combination of accessibility, high-quality display and unique customization options. Although it cannot compete with high-end smart watches in terms of support for advanced applications or health features, it offers exceptional value for occasional smartphone users.
