Smartphones · Xiaomi
Xiaomi Redmi Note 15 256GB- Storage:
- 256 GB
- Memory (RAM):
- 8 GB
- Reference price:
- SAR 990
Xiaomi Redmi Note 15 256GB vs vivo Y 21 256GB: which one suits you?
The two differ in 8 of the specs we have recorded, and the vivo Y 21 256GB is cheaper by SAR 60 (prices checked 12 Nov 2026).
Which one should you choose?
- More memory for multitasking (8 GB vs 4 GB)
- Higher-resolution main camera (108 MP vs 50 MP)
Choose the
vivo Y 21 256GB if you care about:- Paying less: cheaper by SAR 60
- Bigger battery for a longer day (6,500 mAh vs 5,520 mAh)
The deciding difference here: memory (RAM) and battery capacity and price.
Compares recorded specs; a missing spec does not mean the feature is absent.
Key differences
Memory (RAM)
✓ 8 GB4 GBScreen size
6.77 in6.68 inResolution
1080 x 23921608 x 720
Specifications side by side
16 of 16 specs
Scroll the table sideways to see the rest.
| Spec | | |
|---|---|---|
| Reference price | SAR 990 | SAR 930 |
| Memory (RAM) | ✓ 8 GB | 4 GB |
| Processor | Snapdragon 6 Gen 3 | Dimensity 6300 |
| Battery capacity | 5,520 mAh | ✓ 6,500 mAh |
| Wired charging | — | 44 W |
| Main camera | ✓ 108 MP | 50 MP |
| Storage | 256 GB | 256 GB |
| 5G | Yes | Yes |
| Screen size | 6.77 in | 6.68 in |
| Display type | AMOLED | — |
| Resolution | 1080 x 2392 | 1608 x 720 |
| Screen refresh rate | — | 120 Hz |
| Operating system | Android 15 | Android 16 |
| Colour | — | Gold |
| Dimensions | 19 x 9 x 4 centimeters cm | 16.6 x 7.6 x 0.8 centimeters cm |
| Weight | — | 199 g |
| Release year | 2026 | 2026 |
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Similar comparisons
Direct comparison questions
What is the difference in processor between the Xiaomi Redmi Note 15 256GB and the vivo Y 21 256GB?
Xiaomi Redmi Note 15 256GB: Snapdragon 6 Gen 3; vivo Y 21 256GB: Dimensity 6300. This is a spec difference, not a verdict that one is better overall.
What is the difference in storage between the Xiaomi Redmi Note 15 256GB and the vivo Y 21 256GB?
No difference here: storage is 256 GB on both.
What is the difference in main camera between the Xiaomi Redmi Note 15 256GB and the vivo Y 21 256GB?
Main camera is higher on the Xiaomi Redmi Note 15 256GB: 108 MP vs 50 MP on the vivo Y 21 256GB. If this spec is your priority, the difference favours it.
What is the difference in battery capacity between the Xiaomi Redmi Note 15 256GB and the vivo Y 21 256GB?
Battery capacity is higher on the vivo Y 21 256GB: 6,500 mAh vs 5,520 mAh on the Xiaomi Redmi Note 15 256GB. If this spec is your priority, the difference favours it.