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 517,460); the Vivo V21e is noticeably lighter (171g vs 227g).
Profile comparison
Category scores
Redmi K90 Ultra
Vivo V21e
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 517460
- Better Geekbench Single: 3013 vs 746
- Better Geekbench Multi: 9287 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)
What makes Vivo V21e better?
- Better main camera: 64MP vs 50MP
- Lighter: 171g vs 227g
- Better camera (51/100 vs 37/100)
- Better portability (83/100 vs 40/100)
Comparison verdict
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).
Specs comparison
| Specification | Redmi K90 Ultra | Vivo V21e | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 720G | |
| AnTuTu | 3233695 | 517460 | |
| Geekbench Single | 3013 | 746 | |
| Geekbench Multi | 9287 | 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 | — |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo V21e
- Main: 64MP f/1.9
- Ultrawide: 8MP
- Front: 44MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo V21e
- 6.4" AMOLED
- Resolution: 1080x2400
- Refresh rate: —
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo V21e
- 4000 mAh
- Wired: 33W
- No wireless charging
Overall performance score
We compared Redmi K90 Ultra and Vivo V21e, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo V21e by 524.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo V21e
Price unknownDetailed category analysis
performance
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).
Frequently asked questions
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.