| Brand: | Xiaomi |
| Model: | Watch S4 |
| Type: | Wearable |
| Release Date: | 2024 |
| Size: | 1.43 inches |
| Resolution: | 466 x 466 pixels (~326 ppi density) |
| Technology: | AMOLED, 1500 nits (HBM), 2200 nits (peak) |
| Brightness: | 1500 nits |
| Protection: | Scratch/drop-proof glass |
| Main Specs: | No |
| Capacity: | 486 mAh |
| Type: | Li-Po |
| Expandable: | No |
| Os: | HyperOS 2 |
| Dimensions: | 47.3 x 47.3 x 12 mm (1.86 x 1.86 x 0.47 in) |
| Weight: | 44.5 g (1.59 oz) |
| Build: | Waterproof (5ATM) |
| Sim: | eSIM |
| Bluetooth: | 5.3, A2DP, LE |
| Nfc: | Yes (market/region dependent) |
| Usb: | No |
| Headphone Jack: | No |
| Network: | GSM / HSPA / LTE |
| Sensors: | Accelerometer, gyro, compass, barometer, heart rate, SpO2 |
| Colors: | Black, Silver, Rainbow |
| Usd: | ~140 USD |
