Redmi A1 vs Redmi K90 Ultra
The Redmi A1 (2022) runs on the MediaTek Helio A22, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 25/100 (a 48-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the main camera is 8 MP vs 50 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 155,362); the Redmi K90 Ultra has NFC for contactless payments, the Redmi A1 doesn't; the Redmi A1 is noticeably lighter (192g vs 227g).
Profile comparison
Category scores
Redmi A1
Redmi K90 Ultra
What makes Redmi A1 better?
- Lighter: 192g vs 227g
- Better portability (52/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 155362
- Better Geekbench Single: 3013 vs 300
- Better Geekbench Multi: 9287 vs 486
- Bigger battery: 8550 vs 5000 mAh
- Better main camera: 50MP vs 8MP
- Higher performance (92/100 vs 10/100)
- Better camera (37/100 vs 10/100)
- Longer battery life (78/100 vs 66/100)
- Better display (94/100 vs 39/100)
Comparison verdict
Comparing the Redmi A1 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 48 points higher (73/100 vs 25/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 10/100). 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 66/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Redmi A1 (92/100 vs 10/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Redmi A1 (94/100 vs 39/100). In the "camera" category, the Redmi K90 Ultra notably outperforms the Redmi A1 (37/100 vs 10/100). In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 66/100). In the "portability" category, the Redmi A1 is a bit better (52/100 vs 40/100).
Specs comparison
| Specification | Redmi A1 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Helio A22 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 155362 | 3233695 | |
| Geekbench Single | 300 | 3013 | |
| Geekbench Multi | 486 | 9287 | |
| Display | 6.5" IPS LCD | 6.8" AMOLED | |
| Resolution | 720x1600 | 1280x2772 | |
| Refresh rate | — | 165 Hz | |
| Battery | 5000 mAh | 8550 mAh | |
| Charging | — | 100W | |
| Main camera | 8 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 5 MP | 20 MP | |
| RAM | 2GB / 3GB | 12GB / 16GB | |
| Storage | 32GB | 256GB / 512GB | |
| OS | Android 12 (Go edition), MIUI 12 | Android 16 | |
| Brightness (peak) | 400 nits | 3500 nits | |
| NFC | no | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 164.9×76.8×9.1 mm | 162.9×77.9×8.2 mm | |
| Weight | 192 g | 227 g | |
| Launch price | — | $420 |
Camera comparison
Redmi A1
- Main: 8MP f/2.0
- Front: 5MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Redmi A1
- 6.5" IPS LCD
- Resolution: 720x1600
- Refresh rate: —
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Redmi A1
- 5000 mAh
- Wireless charging: no data
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Redmi A1 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Redmi A1 by 95.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Redmi A1
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Redmi A1 (92/100 vs 10/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Redmi A1 (94/100 vs 39/100).
camera
In the "camera" category, the Redmi K90 Ultra notably outperforms the Redmi A1 (37/100 vs 10/100).
battery
In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 66/100).
portability
In the "portability" category, the Redmi A1 is a bit better (52/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi A1 or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Redmi A1 by 48 points (73/100 vs 25/100).
What is the rating of the Redmi A1 and the Redmi K90 Ultra?
The Redmi A1 has a MobileRank rating of 25/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Redmi A1 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on camera score (37/100 vs 10/100).
Which is more powerful: the Redmi A1 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 10/100).
Should you choose the Redmi A1 over the Redmi K90 Ultra?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.