OPPO Reno 15 512GB vs Realme P4x 128GB: which one suits you?
The two differ in 10 of the specs we have recorded, and the Realme P4x 128GB is cheaper by SAR 252 (prices checked 12 Nov 2026).
Which one should you choose?
Choose the
OPPO Reno 15 512GB if you care about:- More space for photos and apps (512 GB vs 128 GB)
- More memory for multitasking (8 GB vs 4 GB)
- Higher wired charging: 80 W vs 45 W
Choose the
Realme P4x 128GB if you care about:- Paying less: cheaper by SAR 252
- Bigger battery for a longer day (7,000 mAh vs 6,500 mAh) · slight difference
The deciding difference here: storage and memory (RAM) and price.
Compares recorded specs; a missing spec does not mean the feature is absent.
Key differences
Storage
✓ 512 GB128 GBMemory (RAM)
✓ 8 GB4 GBScreen size
6.59 in6.8 in
Specifications side by side
21 of 21 specs
Scroll the table sideways to see the rest.
| Spec | | |
|---|---|---|
| Reference price | SAR 2,597 | SAR 2,345 |
| Storage | ✓ 512 GB | 128 GB |
| Memory (RAM) | ✓ 8 GB | 4 GB |
| Processor | Snapdragon 7 Gen 4 | Dimensity 7400 |
| Battery capacity | 6,500 mAh | ✓ 7,000 mAh |
| Wired charging | ✓ 80 W | 45 W |
| Main camera | 50 MP | 50 MP |
| 5G | Yes | Yes |
| Optical zoom (telephoto) | 3.5 x | — |
| Front camera | ✓ 50 MP | 8 MP |
| Screen size | 6.59 in | 6.8 in |
| Display type | AMOLED | IPS LCD |
| Resolution | 1256 x 2760 | 1080 x 2400 |
| Screen refresh rate | — | 144 Hz |
| Wireless charging | — | No |
| Water and dust rating | — | IP64 |
| Operating system | Android 16.0 | Android 15 |
| Dual SIM | Yes | Yes |
| Colour | — | Blue |
| Weight | — | 208 g |
| Release year | 2026 | 2026 |
| Warranty | 1 years | 1 years |
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Before you buy
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Similar comparisons
Direct comparison questions
What is the difference in processor between the OPPO Reno 15 512GB and the Realme P4x 128GB?
OPPO Reno 15 512GB: Snapdragon 7 Gen 4; Realme P4x 128GB: Dimensity 7400. This is a spec difference, not a verdict that one is better overall.
What is the difference in storage between the OPPO Reno 15 512GB and the Realme P4x 128GB?
Storage is higher on the OPPO Reno 15 512GB: 512 GB vs 128 GB on the Realme P4x 128GB. If this spec is your priority, the difference favours it.
What is the difference in main camera between the OPPO Reno 15 512GB and the Realme P4x 128GB?
No difference here: main camera is 50 MP on both.
What is the difference in battery capacity between the OPPO Reno 15 512GB and the Realme P4x 128GB?
Battery capacity is higher on the Realme P4x 128GB: 7,000 mAh vs 6,500 mAh on the OPPO Reno 15 512GB. If this spec is your priority, the difference favours it.