Xiaomi also introduced its latest smartwatch, the Watch S4 15th Anniversary Edition with eSIM Support in China, alongside the launch of the Xiaomi 15S Pro. This special edition smartwatch is powered by Xiaomi’s custom XRING T1 4G chipset, which reduces standby power consumption by 66%. It also features a built-in video codec module that supports animated watch faces and enables remote photo capture with real-time preview.
In terms of aesthetics, the Watch S4 15th Anniversary Edition features a forged carbon bezel etched with the “XRING INSIDE” logo, a durable Viton woven strap, and a 1.43-inch round AMOLED display protected by dragon crystal glass. It also comes with a new Xiaomi Auto App, allowing users to control their car, along with a car-themed watch face exclusive to this edition.
Thanks to the custom SoC, the watch delivers significantly improved battery life—up to 9 days with eSIM in typical use, compared to just 3 days on last year’s standard model. Aside from these upgrades, the rest of the features and specs are consistent with the regular Watch S4.
Xiaomi Watch S4 15th Anniversary Edition Specifications -
| Display | 1.43-inch (466 x 466 pixels) AMOLED screen, 326PPI, up to 2200 nits brightness, 256 levels of adaptive brightness, Dragon Crystal Glass protection |
| Processor | XRING T1 4G long-lasting watch chip; CPU maximum frequency: 500MHz Network support: 4G VoLTE |
| Design | Strap Material: Viton + nylon braided strap: 135~210mm Body materials: Aluminum alloy PVD watch body, stainless steel + forged carbon bezel |
| OS/UI | Xiaomi HyperOS 2 |
| Sports Modes | 150+ sports modes |
| Features | Daily activity tracking, Women’s Health, Fall Detection, Stress monitoring, breath training, sleep, and heart rate monitoring, Video Watch Face and Photo Preview |
| Sensors | Heart rate sensor (including blood oxygen), acceleration sensor, gyroscope, geomagnetic sensor, air pressure sensor, ambient light sensor |
| Water Proof | 5ATM water-resistant |
| Dimensions | 47.3 × 47.3 × 12 mm |
| Weight | 44.5g |
| Connectivity | eSIM support, Supports 4G / 3G, 2.4GHz/5GHz Wi-Fi, Bluetooth 5.2 Dual band : L1+L5 (GPS | Galileo | Glonass | Beidou | QZSS) |
| Battery | 486mAh battery, up to 9 days with typical usage with eSIM |
Pricing and Availability -
The Xiaomi Watch S4 15th Anniversary Edition is available in Green Flame and Black colour options, priced at CNY 1,299 (approximately USD 180 / Rs. 15,505). It is now available for sale in China.
