realme 10 4G 128GB vs Xiaomi 15 512GB: which one suits you?
The two differ in 12 of the specs we have recorded, and the realme 10 4G 128GB is cheaper by SAR 249 (prices checked 9 Nov 2026).
Which one should you choose?
Choose the
realme 10 4G 128GB if you care about:- Paying less: cheaper by SAR 249
- Lower weight: 178 g vs 191 g · slight difference
Choose the
Xiaomi 15 512GB if you care about:- More space for photos and apps (512 GB vs 128 GB)
- More memory for multitasking (12 GB vs 8 GB)
- Larger screen refresh rate: 120 Hz vs 90 Hz
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
128 GB✓ 512 GBMemory (RAM)
8 GB✓ 12 GBScreen size
6.4 in6.36 in
Specifications side by side
22 of 22 specs
Scroll the table sideways to see the rest.
| Spec | | |
|---|---|---|
| Reference price | SAR 2,169 | SAR 2,418 |
| Storage | 128 GB | ✓ 512 GB |
| Memory (RAM) | 8 GB | ✓ 12 GB |
| Processor | Helio G99 | Snapdragon 8 Elite |
| Battery capacity | 5,000 mAh | 5,240 mAh |
| Wired charging | 33 W | ✓ 90 W |
| 5G | — | Yes |
| Main camera | 50 MP | 50 MP |
| Optical zoom (telephoto) | — | 2.6 x |
| Front camera | 16 MP | ✓ 50 MP |
| Screen size | 6.4 in | 6.36 in |
| Display type | Super AMOLED | AMOLED |
| Resolution | 2340 x 1080 | 1200 x 2670 |
| Screen refresh rate | 90 Hz | ✓ 120 Hz |
| Wireless charging | — | Yes |
| Dual SIM | — | Yes |
| Water and dust rating | — | IP68 |
| Operating system | — | Android 15 |
| Release year | 2023 | 2025 |
| Colour | Black | — |
| Dimensions | — | 15.2 x 7.1 x 0.8 cm |
| Weight | ✓ 178 g | 191 g |
| Warranty | — | 2 years |
Facts come from each Amazon.sa listing. As an Amazon Associate we earn from qualifying purchases. Buying through our links costs you nothing extra.
Before you buy
Prices, availability, shipping and returns can change. Check the final details on Amazon.sa before you buy.
Similar comparisons
Direct comparison questions
What is the difference in processor between the realme 10 4G 128GB and the Xiaomi 15 512GB?
realme 10 4G 128GB: Helio G99; Xiaomi 15 512GB: Snapdragon 8 Elite. This is a spec difference, not a verdict that one is better overall.
What is the difference in storage between the realme 10 4G 128GB and the Xiaomi 15 512GB?
Storage is higher on the Xiaomi 15 512GB: 512 GB vs 128 GB on the realme 10 4G 128GB. If this spec is your priority, the difference favours it.
What is the difference in main camera between the realme 10 4G 128GB and the Xiaomi 15 512GB?
No difference here: main camera is 50 MP on both.
What is the difference in battery capacity between the realme 10 4G 128GB and the Xiaomi 15 512GB?
Battery capacity is higher on the Xiaomi 15 512GB: 5,240 mAh vs 5,000 mAh on the realme 10 4G 128GB. If this spec is your priority, the difference favours it.