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Product details
The Xiaomi Watch S4 Rainbow is a stylish smartwatch featuring a 1.43-inch AMOLED display and a unique multi-color woven strap made of fluororubber and nylon. It combines a classic round watch design with modern smart features, extensive health tracking, and a long battery life.
Design and Display
- Color Scheme: The “Rainbow” variant features a distinct multi-colored, woven strap made of a combination of fluororubber and nylon materials, offering a skin-friendly and unique aesthetic. The watch case itself is an aluminum alloy frame with a PVD coating, typically in black or silver-toned finishes depending on the specific product listing, that integrates seamlessly with the colorful strap.
- Display: It sports a circular 1.43-inch AMOLED touchscreen display with a sharp 466 x 466 pixel resolution and 326 PPI. The screen boasts impressive brightness, reaching up to 1500 nits in HBM mode and a peak of 2200 nits, ensuring excellent visibility even in direct sunlight. It also supports an always-on display (AOD) feature.
- Interchangeable Bezels: A key design feature is the support for interchangeable bezels, allowing users to customize the watch’s look to match their style, with the corresponding watch face automatically switching when a new bezel is installed.
These official specs outline the Xiaomi Watch S4 Rainbow’s display, health tracking features, and physical dimensions:
Features and Specifications
- Health and Fitness: The Watch S4 provides comprehensive health and fitness monitoring, including 24/7 heart rate and blood oxygen (SpO₂) monitoring, advanced sleep tracking (with sleep breathing quality analysis), and all-day stress monitoring. It supports over 150 different sports modes, including running, cycling, and skiing with fall detection.
- Connectivity and Battery: It uses Bluetooth 5.3 for stable connectivity and supports Bluetooth calling via a built-in microphone and speaker, as well as NFC for contactless payments (availability may vary by region). The 486mAh battery offers an impressive typical usage time of up to 15 days on a single charge.
- Other Specs:
- Operating System: Xiaomi HyperOS 2.
- Water Resistance: 5ATM rating, suitable for swimming in pools and shallow water activities (not hot showers or diving).
- Positioning: Built-in multi-system satellite positioning (GPS, Galileo, Glonass, BeiDou, QZSS) for accurate route tracking during outdoor activities.
- Control: A newly upgraded rotating crown and button offer intuitive navigation and interaction with the interface.
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