OnePlus Watch 2 vs Xiaomi S 4: which one suits you?
The two differ in 4 of the specs we have recorded, and the Xiaomi S 4 is cheaper by SAR 78 (prices checked 5 Nov 2026).
Which one should you choose?
Choose the
OnePlus Watch 2 if you care about:- Has built-in GPS; the other doesn't
Choose the
Xiaomi S 4 if you care about:- Paying less: cheaper by SAR 78
- Charge less often through the week (15 days vs 4.17 days)
- Lower weight: 45 g vs 80 g
The deciding difference here: battery life and built-in GPS and price.
Compares recorded specs; a missing spec does not mean the feature is absent.
Key differences
Case size
47 mm46 mmBattery life
4.17 days✓ 15 daysBuilt-in GPS
✓ YesNo
Specifications side by side
19 of 19 specs
Scroll the table sideways to see the rest.
| Spec | | |
|---|---|---|
| Reference price | SAR 756 | SAR 678 |
| Battery life | 4.17 days | ✓ 15 days |
| Built-in GPS | ✓ Yes | No |
| Cellular (LTE/eSIM) | No | — |
| Bluetooth calls | Yes | — |
| Phone compatibility | Android | — |
| Case size | 47 mm | 46 mm |
| Case material | Stainless steel | — |
| Weight | 80 g | ✓ 45 g |
| Display type | AMOLED | AMOLED |
| Display size | 1.43 in | 1.43 in |
| Water resistance | 5 ATM | 5 ATM |
| ECG | No | — |
| Heart-rate tracking | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Contactless payment (NFC) | Yes | Yes |
| Release year | 2024 | — |
| Dimensions | — | 12×47.3×47.4 cm |
| dust resistance rating | IP68 | — |
| App control (Wi-Fi) | Yes | — |
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Direct comparison questions
What is the difference in battery life between the OnePlus Watch 2 and the Xiaomi S 4?
Battery life is higher on the Xiaomi S 4: 15 days vs 4.17 days on the OnePlus Watch 2. If this spec is your priority, the difference favours it.
What is the difference in built-in GPS between the OnePlus Watch 2 and the Xiaomi S 4?
OnePlus Watch 2: Yes; Xiaomi S 4: No. This is a spec difference, not a verdict that one is better overall.
What is the difference in case size between the OnePlus Watch 2 and the Xiaomi S 4?
OnePlus Watch 2: 47 mm; Xiaomi S 4: 46 mm. A higher value is not necessarily better for you.
What is the difference in water resistance between the OnePlus Watch 2 and the Xiaomi S 4?
No difference here: water resistance is 5 ATM on both.