Xiaomi Watch S3 vs Xiaomi Watch S4
3 recorded spec differences. Xiaomi Watch S3 is currently the cheaper of the two on Amazon.sa (SAR 296 vs SAR 399, checked 3 Nov 2026).
Specifications side by side
| Spec | Xiaomi Watch S3 | Xiaomi Watch S4 |
|---|---|---|
| Phone, battery and calls | ||
| Battery life | 15 days | 4 days |
| Cellular (LTE/eSIM) | Yes | — |
| Bluetooth calls | — | Yes |
| Built-in GPS | Yes | Yes |
| Size, screen and durability | ||
| Case size | — | 41 mm |
| Display size | 1.43 in | 1.32 in |
| Weight | 44 g | 32 g |
| Display type | AMOLED | AMOLED |
| Water resistance | 5 ATM | 5 ATM |
| Case material | Stainless steel | Stainless steel |
| Health and payments | ||
| Blood oxygen (SpO2) | — | Yes |
| ECG | No | No |
| Heart-rate tracking | Yes | Yes |
| Contactless payment (NFC) | Yes | Yes |
| Warranty | 2 years | 2 years |
Highlighted rows differ. Facts come from each Amazon.sa listing. As an Amazon Associate we earn from qualifying purchases. Buying through our links costs you nothing extra.