Redmi K90 Ultra vs Vivo V21e
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo V21e (2021) runs on the Qualcomm Snapdragon 720G. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 49/100 (a 24-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4000); the main camera is 50 MP vs 64 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 514,398); the Vivo V21e is noticeably lighter (171g vs 227g).
Redmi K90 Ultra
Vivo V21e
- Higher AnTuTu: 3233695 vs 514398
- Better Geekbench Single: 3041 vs 746
- Better Geekbench Multi: 9494 vs 1762
- Bigger battery: 8550 vs 4000 mAh
- Faster charging: 100W vs 33W
- Higher performance (92/100 vs 41/100)
- Longer battery life (78/100 vs 25/100)
- Better display (94/100 vs 84/100)
- Better main camera: 64MP vs 50MP
- Lighter: 171g vs 227g
- Better camera (51/100 vs 37/100)
- Better portability (83/100 vs 40/100)
Comparing the Redmi K90 Ultra vs the Vivo V21e, the Redmi K90 Ultra scores 24 points higher (73/100 vs 49/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 41/100). In the "camera" category, the Vivo V21e leads (51/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 25/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo V21e (92/100 vs 41/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 84/100). In the "camera" category, the Vivo V21e is a bit better (51/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo V21e (78/100 vs 25/100). In the "portability" category, the Vivo V21e significantly outperforms the Redmi K90 Ultra (83/100 vs 40/100).
| Specification | Redmi K90 Ultra | Vivo V21e | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 720G | |
| AnTuTu | 3233695 | 514398 | |
| Geekbench Single | 3041 | 746 | |
| Geekbench Multi | 9494 | 1762 | |
| Display | 6.8" AMOLED | 6.4" AMOLED | |
| Resolution | 1280x2772 | 1080x2400 | |
| Refresh rate | 165 Hz | — | |
| Battery | 8550 mAh | 4000 mAh | |
| Charging | 100W | 33W | |
| Main camera | 50 MP | 64 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 20 MP | 44 MP | |
| RAM | 12GB / 16GB | 8GB | |
| Storage | 256GB / 512GB | 128GB | |
| OS | Android 16 | Android 11, Funtouch 11.1 | |
| Brightness (peak) | 3500 nits | 430 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | — | |
| Dimensions | 162.9×77.9×8.2 mm | 161.2×74.4×7.4 mm | |
| Weight | 227 g | 171 g | |
| Launch price | $420 | — |
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo V21e
- Main: 64MP f/f/1.9
- Ultrawide: 8MP
- Front: 44MP
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo V21e
- 6.4" AMOLED
- Resolution: 1080x2400
- Refresh rate: —
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo V21e
- 4000 mAh
- Wired: 33W
- No wireless charging
We compared Redmi K90 Ultra and Vivo V21e, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo V21e by 528.6% in our overall performance rating.
Vivo V21e
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo V21e (92/100 vs 41/100).
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 84/100).
camera
In the "camera" category, the Vivo V21e is a bit better (51/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo V21e (78/100 vs 25/100).
portability
In the "portability" category, the Vivo V21e significantly outperforms the Redmi K90 Ultra (83/100 vs 40/100).
Which is better: the Redmi K90 Ultra or the Vivo V21e?
The Redmi K90 Ultra significantly outperforms the Vivo V21e by 24 points (73/100 vs 49/100).
What is the rating of the Redmi K90 Ultra and the Vivo V21e?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Vivo V21e — 49/100.
Which has the better camera: the Redmi K90 Ultra or the Vivo V21e?
The Vivo V21e leads on camera score (51/100 vs 37/100).
Which is more powerful: the Redmi K90 Ultra or the Vivo V21e?
The Redmi K90 Ultra leads on performance (92/100 vs 41/100).
Should you choose the Redmi K90 Ultra over the Vivo V21e?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo V21e is a better fit for everyday use.