Nubia A75 vs Redmi K90 Ultra
The Nubia A75 (2024) runs on the MediaTek Helio P22, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $85 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 21/100 (a 52-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the main camera is 13 MP vs 50 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 177,554); the Redmi K90 Ultra has NFC for contactless payments, the Nubia A75 doesn't; the Nubia A75 is noticeably lighter (170g vs 227g).
Profile comparison
Category scores
Nubia A75
Redmi K90 Ultra
What makes Nubia A75 better?
- Lighter: 170g vs 227g
- Cheaper at launch: $85 vs $420
- Better portability (66/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 177554
- Better Geekbench Single: 3013 vs 233
- Better Geekbench Multi: 9287 vs 723
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 10W
- Better main camera: 50MP vs 13MP
- Higher refresh rate: 165Hz vs 60Hz
- Higher performance (92/100 vs 10/100)
- Better camera (37/100 vs 10/100)
- Longer battery life (78/100 vs 43/100)
- Better display (94/100 vs 32/100)
Comparison verdict
Comparing the Nubia A75 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 52 points higher (73/100 vs 21/100). 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 43/100). Value score: Nubia A75 — 36/100, Redmi K90 Ultra — 72/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Redmi K90 Ultra significantly outperforms the Nubia A75 (92/100 vs 10/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Nubia A75 (94/100 vs 32/100). In the "camera" category, the Redmi K90 Ultra notably outperforms the Nubia A75 (37/100 vs 10/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Nubia A75 (78/100 vs 43/100). In the "portability" category, the Nubia A75 notably outperforms the Redmi K90 Ultra (66/100 vs 40/100).
Specs comparison
| Specification | Nubia A75 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Helio P22 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 177554 | 3233695 | |
| Geekbench Single | 233 | 3013 | |
| Geekbench Multi | 723 | 9287 | |
| Display | 6.5" IPS LCD | 6.8" AMOLED | |
| Resolution | 720x1600 | 1280x2772 | |
| Refresh rate | 60 Hz | 165 Hz | |
| Battery | 5000 mAh | 8550 mAh | |
| Charging | 10W | 100W | |
| Main camera | 13 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 8 MP | 20 MP | |
| RAM | 4GB | 12GB / 16GB | |
| Storage | 32GB | 256GB / 512GB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | — | 3500 nits | |
| NFC | no | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 164.0×76.0×9.0 mm | 162.9×77.9×8.2 mm | |
| Weight | 170 g | 227 g | |
| Launch price | $85 | $420 |
Camera comparison
Nubia A75
- Main: 13MP
- Front: 8MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Nubia A75
- 6.5" IPS LCD
- Resolution: 720x1600
- Refresh rate: 60 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Nubia A75
- 5000 mAh
- Wired: 10W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Nubia A75 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Nubia A75 by 94.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $335. Nubia A75 was $335 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Nubia A75 (92/100 vs 10/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Nubia A75 (94/100 vs 32/100).
camera
In the "camera" category, the Redmi K90 Ultra notably outperforms the Nubia A75 (37/100 vs 10/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Nubia A75 (78/100 vs 43/100).
portability
In the "portability" category, the Nubia A75 notably outperforms the Redmi K90 Ultra (66/100 vs 40/100).
Frequently asked questions
Which is better: the Nubia A75 or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Nubia A75 by 52 points (73/100 vs 21/100).
What is the rating of the Nubia A75 and the Redmi K90 Ultra?
The Nubia A75 has a MobileRank rating of 21/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Nubia A75 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on camera score (37/100 vs 10/100).
Which is more powerful: the Nubia A75 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 10/100).
Should you choose the Nubia A75 over the Redmi K90 Ultra?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.