Redmi K90 Max vs Vivo S21 Pro
The Redmi K90 Max (2026) runs on the MediaTek Dimensity 9500, while the Vivo S21 Pro (2024) runs on the MediaTek Dimensity 9300+. By overall MobileRank rating, the Redmi K90 Max leads — 67/100 vs 63/100 (a 4-point difference). Key differences: the Redmi K90 Max has the bigger battery (8550 mAh vs 5500); the Redmi K90 Max is faster in AnTuTu (3,803,420 vs 2,351,914).
Redmi K90 Max
Vivo S21 Pro
- Higher AnTuTu: 3803420 vs 2351914
- Better Geekbench Single: 3228 vs 2250
- Better Geekbench Multi: 9553 vs 7315
- Bigger battery: 8550 vs 5500 mAh
- Faster charging: 100W vs 90W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (82/100 vs 46/100)
- Longer battery life (77/100 vs 60/100)
- Better value for money (75/100 vs 55/100)
- Better camera (78/100 vs 32/100)
- Better design/ergonomics (50/100 vs 16/100)
Comparing the Redmi K90 Max vs the Vivo S21 Pro, the Redmi K90 Max scores 4 points higher (67/100 vs 63/100). In the "performance" category, the Redmi K90 Max leads (82/100 vs 46/100). In the "camera" category, the Vivo S21 Pro leads (78/100 vs 32/100). In the "battery" category, the Redmi K90 Max leads (77/100 vs 60/100). In the "value for money" category, the Redmi K90 Max leads (75/100 vs 55/100). In the "performance" category, the Redmi K90 Max significantly outperforms the Vivo S21 Pro (82/100 vs 46/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Vivo S21 Pro significantly outperforms the Redmi K90 Max (78/100 vs 32/100). In the "battery" category, the Redmi K90 Max notably outperforms the Vivo S21 Pro (77/100 vs 60/100). In the "design" category, the Vivo S21 Pro significantly outperforms the Redmi K90 Max (50/100 vs 16/100). In the "value for money" category, the Redmi K90 Max notably outperforms the Vivo S21 Pro (75/100 vs 55/100).
| Specification | Redmi K90 Max | Vivo S21 Pro | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | MediaTek Dimensity 9300+ | |
| AnTuTu | 3803420 | 2351914 | |
| Geekbench Single | 3228 | 2250 | |
| Geekbench Multi | 9553 | 7315 | |
| Display | 6.8" AMOLED | 6.7" AMOLED | |
| Resolution | 2772x1280 | 1260x2800 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 5500 mAh | |
| Charging | 100W | 90W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 20 MP | 50 MP | |
| RAM | 12GB / 16GB | 16GB | |
| Storage | 256GB / 512GB / 1TB | 512GB | |
| OS | Android 16 | Android 15, OriginOS 5 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP66 | IP68 | |
| Dimensions | 162.9×77.9×8.1 mm | — | |
| Weight | 227 g | — | |
| Price | $504 | — |
Redmi K90 Max
- Main: 50MP f/f/1.68
- Ultrawide: 8MP
- Front: 20MP
Vivo S21 Pro
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 50MP
Redmi K90 Max
- 6.8" AMOLED
- Resolution: 2772x1280
- Refresh rate: 165 Hz
Vivo S21 Pro
- 6.7" AMOLED
- Resolution: 1260x2800
- Refresh rate: 120 Hz
Redmi K90 Max
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo S21 Pro
- 5500 mAh
- Wired: 90W
- No wireless charging
We compared Redmi K90 Max and Vivo S21 Pro, covering their specs and all relevant benchmarks.
Redmi K90 Max leads Vivo S21 Pro by 61.7% in our overall performance rating.
Vivo S21 Pro
Price unknownperformance
In the "performance" category, the Redmi K90 Max significantly outperforms the Vivo S21 Pro (82/100 vs 46/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Vivo S21 Pro significantly outperforms the Redmi K90 Max (78/100 vs 32/100).
battery
In the "battery" category, the Redmi K90 Max notably outperforms the Vivo S21 Pro (77/100 vs 60/100).
design
In the "design" category, the Vivo S21 Pro significantly outperforms the Redmi K90 Max (50/100 vs 16/100).
value for money
In the "value for money" category, the Redmi K90 Max notably outperforms the Vivo S21 Pro (75/100 vs 55/100).
Which is better: the Redmi K90 Max or the Vivo S21 Pro?
The Redmi K90 Max edges out the Vivo S21 Pro by just 4 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 Max and the Vivo S21 Pro?
The Redmi K90 Max has a MobileRank rating of 67/100, the Vivo S21 Pro — 63/100.
Which has the better camera: the Redmi K90 Max or the Vivo S21 Pro?
The Vivo S21 Pro leads on camera score (78/100 vs 32/100).
Which is more powerful: the Redmi K90 Max or the Vivo S21 Pro?
The Redmi K90 Max leads on performance (82/100 vs 46/100).
Should you choose the Redmi K90 Max over the Vivo S21 Pro?
The Redmi K90 Max is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo S21 Pro is a better fit for everyday use.