OPPO Reno 7 128GB vs realme RMX 3780 256GB: which one suits you?
The two differ in 9 of the specs we have recorded, and the OPPO Reno 7 128GB is cheaper by SAR 37 (prices checked 9 Nov 2026).
Which one should you choose?
Choose the
OPPO Reno 7 128GB if you care about:- Paying less: cheaper by SAR 37
- Lower weight: 175 g vs 190 g · slight difference
Choose the
realme RMX 3780 256GB if you care about:- More space for photos and apps (256 GB vs 128 GB)
- Larger screen refresh rate: 120 Hz vs 90 Hz
- Higher-resolution main camera (100 MP vs 64 MP)
The deciding difference here: storage and screen refresh rate and price.
Compares recorded specs; a missing spec does not mean the feature is absent.
Key differences
Storage
128 GB✓ 256 GBScreen size
6.43 in6.72 inDisplay type
AMOLEDLCD
Specifications side by side
16 of 16 specs
Scroll the table sideways to see the rest.
| Spec | | |
|---|---|---|
| Reference price | SAR 744 | SAR 781 |
| Storage | 128 GB | ✓ 256 GB |
| Processor | Snapdragon 680 | — |
| Battery capacity | 4,500 mAh | ✓ 5,000 mAh |
| Wired charging | 33 W | — |
| Main camera | 64 MP | ✓ 100 MP |
| 5G | — | Yes |
| Memory (RAM) | 8 GB | 8 GB |
| Screen size | 6.43 in | 6.72 in |
| Display type | AMOLED | LCD |
| Screen refresh rate | 90 Hz | ✓ 120 Hz |
| Resolution | 1080 x 2400 | 1080 x 2400 |
| Operating system | Android 11.0 | Android 13.0 |
| Release year | 2022 | 2023 |
| Dimensions | 16 x 7.3 x 0.7 centimeters cm | — |
| Weight | ✓ 175 g | 190 g |
| Warranty | — | 2 years |
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Direct comparison questions
What is the difference in storage between the OPPO Reno 7 128GB and the realme RMX 3780 256GB?
Storage is higher on the realme RMX 3780 256GB: 256 GB vs 128 GB on the OPPO Reno 7 128GB. If this spec is your priority, the difference favours it.
What is the difference in main camera between the OPPO Reno 7 128GB and the realme RMX 3780 256GB?
Main camera is higher on the realme RMX 3780 256GB: 100 MP vs 64 MP on the OPPO Reno 7 128GB. If this spec is your priority, the difference favours it.
What is the difference in battery capacity between the OPPO Reno 7 128GB and the realme RMX 3780 256GB?
Battery capacity is higher on the realme RMX 3780 256GB: 5,000 mAh vs 4,500 mAh on the OPPO Reno 7 128GB. If this spec is your priority, the difference favours it.
What is the difference in memory (RAM) between the OPPO Reno 7 128GB and the realme RMX 3780 256GB?
No difference here: memory (RAM) is 8 GB on both.