Redmi K90 Ultra vs Vivo Y21e
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo Y21e (2022) runs on the Qualcomm Snapdragon 680 4G. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 30/100 (a 43-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the main camera is 50 MP vs 13 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 424,216); the Redmi K90 Ultra has NFC for contactless payments, the Vivo Y21e doesn't; the Vivo Y21e is noticeably lighter (182g vs 227g).
Profile comparison
Category scores
Redmi K90 Ultra
Vivo Y21e
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 424216
- Better Geekbench Single: 3013 vs 412
- Better Geekbench Multi: 9287 vs 1423
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 13MP
- Higher performance (92/100 vs 31/100)
- Better camera (37/100 vs 10/100)
- Longer battery life (78/100 vs 43/100)
- Better display (94/100 vs 39/100)
What makes Vivo Y21e better?
- Lighter: 182g vs 227g
- Better portability (70/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Vivo Y21e, the Redmi K90 Ultra scores 43 points higher (73/100 vs 30/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 31/100). In the "camera" category, the Redmi K90 Ultra leads (37/100 vs 10/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 43/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo Y21e (92/100 vs 31/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Vivo Y21e (94/100 vs 39/100). In the "camera" category, the Redmi K90 Ultra notably outperforms the Vivo Y21e (37/100 vs 10/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo Y21e (78/100 vs 43/100). In the "portability" category, the Vivo Y21e significantly outperforms the Redmi K90 Ultra (70/100 vs 40/100).
Specs comparison
| Specification | Redmi K90 Ultra | Vivo Y21e | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 680 4G | |
| AnTuTu | 3233695 | 424216 | |
| Geekbench Single | 3013 | 412 | |
| Geekbench Multi | 9287 | 1423 | |
| Display | 6.8" AMOLED | 6.5" IPS LCD | |
| Resolution | 1280x2772 | 720x1600 | |
| Refresh rate | 165 Hz | — | |
| Battery | 8550 mAh | 5000 mAh | |
| Charging | 100W | 18W | |
| Main camera | 50 MP | 13 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 8 MP | |
| RAM | 12GB / 16GB | 3GB | |
| Storage | 256GB / 512GB | 64GB | |
| OS | Android 16 | Android 11, Funtouch 12 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | no | |
| Protection | IP68/IP69 | — | |
| Dimensions | 162.9×77.9×8.2 mm | 164.3×76.1×8.0 mm | |
| Weight | 227 g | 182 g | |
| Launch price | $420 | — |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo Y21e
- Main: 13MP f/2.2
- Front: 8MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo Y21e
- 6.5" IPS LCD
- Resolution: 720x1600
- Refresh rate: —
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo Y21e
- 5000 mAh
- Wired: 18W
- No wireless charging
Overall performance score
We compared Redmi K90 Ultra and Vivo Y21e, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo Y21e by 662.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo Y21e
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo Y21e (92/100 vs 31/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Vivo Y21e (94/100 vs 39/100).
camera
In the "camera" category, the Redmi K90 Ultra notably outperforms the Vivo Y21e (37/100 vs 10/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo Y21e (78/100 vs 43/100).
portability
In the "portability" category, the Vivo Y21e significantly outperforms the Redmi K90 Ultra (70/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Vivo Y21e?
The Redmi K90 Ultra significantly outperforms the Vivo Y21e by 43 points (73/100 vs 30/100).
What is the rating of the Redmi K90 Ultra and the Vivo Y21e?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Vivo Y21e — 30/100.
Which has the better camera: the Redmi K90 Ultra or the Vivo Y21e?
The Redmi K90 Ultra leads on camera score (37/100 vs 10/100).
Which is more powerful: the Redmi K90 Ultra or the Vivo Y21e?
The Redmi K90 Ultra leads on performance (92/100 vs 31/100).
Should you choose the Redmi K90 Ultra over the Vivo Y21e?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.