Nothing Phone (3a) Pro vs Redmi K90 Ultra
The Nothing Phone (3a) Pro (2025) runs on the Qualcomm Snapdragon 7s Gen 3, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $459 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 61/100 (a 12-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the Redmi K90 Ultra is faster in AnTuTu (3,119,308 vs 1,063,102); the Nothing Phone (3a) Pro is noticeably lighter (201g vs 227g).
Nothing Phone (3a) Pro
Redmi K90 Ultra
- Lighter: 201g vs 227g
- Better camera (64/100 vs 37/100)
- Better portability (54/100 vs 40/100)
- Higher AnTuTu: 3119308 vs 1063102
- Better Geekbench Single: 3041 vs 1162
- Better Geekbench Multi: 9494 vs 3315
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 50W
- Higher refresh rate: 165Hz vs 120Hz
- Cheaper: $420 vs $459
- Higher performance (92/100 vs 60/100)
- Longer battery life (78/100 vs 49/100)
- Better display (94/100 vs 79/100)
Comparing the Nothing Phone (3a) Pro vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 12 points higher (73/100 vs 61/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 60/100). In the "camera" category, the Nothing Phone (3a) Pro leads (64/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 49/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Nothing Phone (3a) Pro (92/100 vs 60/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Nothing Phone (3a) Pro (94/100 vs 79/100). In the "camera" category, the Nothing Phone (3a) Pro notably outperforms the Redmi K90 Ultra (64/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Nothing Phone (3a) Pro (78/100 vs 49/100). In the "portability" category, the Nothing Phone (3a) Pro is a bit better (54/100 vs 40/100).
| Specification | Nothing Phone (3a) Pro | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 7s Gen 3 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1063102 | 3119308 | |
| Geekbench Single | 1162 | 3041 | |
| Geekbench Multi | 3315 | 9494 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 2392x1080 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 5000 mAh | 8550 mAh | |
| Charging | 50W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 50 MP | 20 MP | |
| RAM | 12GB | 12GB / 16GB | |
| Storage | 256GB | 256GB / 512GB | |
| OS | Android 15 / Nothing OS 3.1 | Android 16 | |
| Brightness (peak) | 3000 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP54 | IP68/IP69 | |
| Dimensions | 163.5×77.5×8.4 mm | 162.9×77.9×8.2 mm | |
| Weight | 201 g | 227 g | |
| Price | $459 | $420 |
Nothing Phone (3a) Pro
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 50MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Nothing Phone (3a) Pro
- 6.8" AMOLED
- Resolution: 2392x1080
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Nothing Phone (3a) Pro
- 5000 mAh
- Wired: 50W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
We compared Nothing Phone (3a) Pro and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Nothing Phone (3a) Pro by 65.9% in our overall performance rating.
Price difference: $39. Redmi K90 Ultra is cheaper by $39.
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Nothing Phone (3a) Pro (92/100 vs 60/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Nothing Phone (3a) Pro (94/100 vs 79/100).
camera
In the "camera" category, the Nothing Phone (3a) Pro notably outperforms the Redmi K90 Ultra (64/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Nothing Phone (3a) Pro (78/100 vs 49/100).
portability
In the "portability" category, the Nothing Phone (3a) Pro is a bit better (54/100 vs 40/100).
Which is better: the Nothing Phone (3a) Pro or the Redmi K90 Ultra?
The Redmi K90 Ultra is noticeably better than the Nothing Phone (3a) Pro — the overall rating gap is 12 points.
What is the rating of the Nothing Phone (3a) Pro and the Redmi K90 Ultra?
The Nothing Phone (3a) Pro has a MobileRank rating of 61/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Nothing Phone (3a) Pro or the Redmi K90 Ultra?
The Nothing Phone (3a) Pro leads on camera score (64/100 vs 37/100).
Which is more powerful: the Nothing Phone (3a) Pro or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 60/100).
Should you choose the Nothing Phone (3a) Pro over the Redmi K90 Ultra?
The Nothing Phone (3a) Pro is a better fit for active users. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.