Xiaomi has officially unveiled the Watch S4 15th Anniversary Edition during its major anniversary event in China, bringing a refreshed wearable that blends style innovation and powerful performance. The latest smartwatch comes equipped with Xiaomi’s custom-built XRING T1 chipset and introduces features that enable users to control their Xiaomi cars directly from their wrist — without needing a smartphone.
Marking a special edition release months after the standard Watch S4, this new model showcases updated color options including Black and Green and introduces subtle design enhancements that set it apart from the regular version. The watch sports a 1.43-inch circular AMOLED display with a crisp 466×466 resolution 60Hz refresh rate and up to 1500 nits peak brightness, ensuring visibility even under bright sunlight.
The Watch S4 15th Anniversary Edition runs on Xiaomi HyperOS 2 and is compatible with Android 8.0 and iOS 12.0 or newer. One of its standout features is support for three-second video content on the watch face and the ability to preview the smartphone camera in real-time — boosting convenience for content creators and on-the-go users.
A key highlight of this edition is the inclusion of the XRING T1 processor, delivering a maximum CPU clock speed of 500MHz. This chip is optimized for improved responsiveness and battery efficiency. Xiaomi claims the 486mAh battery inside the watch can last up to nine days even with eSIM enabled — two days more than the standard model.
In terms of health and fitness, the wearable features a SpO2 blood oxygen sensor and heart rate monitoring along with a 5ATM water resistance rating. It also offers comprehensive connectivity options including 4G Wi-Fi Bluetooth 5.3 NFC GPS Galileo Glonass Beidou and QZSS. Weighing 44.5 grams and measuring 47.3 x 47.3 x 12.0mm the watch is lightweight yet durable.
The Xiaomi Watch S4 15th Anniversary Edition is priced at CNY 1,299 (around Rs 15000) which places it above the regular Watch S4 that starts at CNY 999 (approximately Rs 11800). The new edition was launched alongside the Xiaomi 15s Pro and Xiaomi Pad 7 Ultra during the celebratory event.
