Smartwatches · OnePlus
OnePlus Watch 4- Case size:
- 47 mm
- Display type:
- LTPO OLED
- Reference price:
- SAR 1,118
OnePlus Watch 4 vs Samsung Galaxy Watch9: which one suits you?
The two differ in 4 of the specs we have recorded, and the OnePlus Watch 4 is cheaper by SAR 138 (prices checked 4 Nov 2026).
Which one should you choose?
Choose the
OnePlus Watch 4 if you care about:- Paying less: cheaper by SAR 138
- Has cellular (lte/esim); the other doesn't
- Higher display size: 1.5 in vs 1.34 in · slight difference
Choose the
Samsung Galaxy Watch9 if you care about:- Lower weight: 31 g vs 43 g
The deciding difference here: cellular (lte/esim) and weight and price.
Compares recorded specs; a missing spec does not mean the feature is absent.
Smartwatches · Samsung
Samsung Galaxy Watch9- Case size:
- 40 mm
- Display size:
- 1.34 in
- Reference price:
- SAR 1,256
Key differences
Case size
47 mm40 mmDisplay size
✓ 1.5 in1.34 inCellular (LTE/eSIM)
✓ YesNo
Specifications side by side
14 of 14 specs
Scroll the table sideways to see the rest.
| Spec | | |
|---|---|---|
| Reference price | SAR 1,118 | SAR 1,256 |
| Battery life | 16 days | — |
| Built-in GPS | Yes | — |
| Cellular (LTE/eSIM) | ✓ Yes | No |
| Phone compatibility | Smartphone | — |
| Case size | 47 mm | 40 mm |
| Display type | LTPO OLED | — |
| Display size | ✓ 1.5 in | 1.34 in |
| Water resistance | 5 ATM | — |
| Weight | 43 g | ✓ 31 g |
| ECG | Yes | — |
| Blood oxygen (SpO2) | Yes | — |
| Contactless payment (NFC) | Yes | — |
| Heart-rate tracking | Yes | Yes |
| Dimensions | 11 x 47 x 47 millimeters cm | — |
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Similar comparisons
Direct comparison questions
What is the difference in cellular (lte/esim) between the OnePlus Watch 4 and the Samsung Galaxy Watch9?
OnePlus Watch 4: Yes; Samsung Galaxy Watch9: 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 4 and the Samsung Galaxy Watch9?
OnePlus Watch 4: 47 mm; Samsung Galaxy Watch9: 40 mm. A higher value is not necessarily better for you.
What is the difference in display size between the OnePlus Watch 4 and the Samsung Galaxy Watch9?
Display size is higher on the OnePlus Watch 4: 1.5 in vs 1.34 in on the Samsung Galaxy Watch9. If this spec is your priority, the difference favours it.
What is the difference in heart-rate tracking between the OnePlus Watch 4 and the Samsung Galaxy Watch9?
No difference here: heart-rate tracking is Yes on both.