Nothing Phone (3a) vs Redmi K90 Ultra
The Nothing Phone (3a) (2025) runs on the Qualcomm Snapdragon 7s Gen 3, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $329 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 60/100 (a 13-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 1,050,601); the Nothing Phone (3a) is noticeably lighter (201g vs 227g).
Profile comparison
Category scores
Nothing Phone (3a)
Redmi K90 Ultra
What makes Nothing Phone (3a) better?
- Lighter: 201g vs 227g
- Cheaper at launch: $329 vs $420
- Better camera (61/100 vs 37/100)
- Better portability (54/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 1050601
- Better Geekbench Single: 3013 vs 1161
- Better Geekbench Multi: 9287 vs 3390
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 45W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 60/100)
- Longer battery life (78/100 vs 48/100)
- Better display (94/100 vs 79/100)
Comparison verdict
Comparing the Nothing Phone (3a) vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 13 points higher (73/100 vs 60/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 60/100). In the "camera" category, the Nothing Phone (3a) leads (61/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 48/100). Value score: Nothing Phone (3a) — 56/100, 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 Nothing Phone (3a) (92/100 vs 60/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Nothing Phone (3a) (94/100 vs 79/100). In the "camera" category, the Nothing Phone (3a) notably outperforms the Redmi K90 Ultra (61/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Nothing Phone (3a) (78/100 vs 48/100). In the "portability" category, the Nothing Phone (3a) is a bit better (54/100 vs 40/100).
Specs comparison
| Specification | Nothing Phone (3a) | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 7s Gen 3 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1050601 | 3233695 | |
| Geekbench Single | 1161 | 3013 | |
| Geekbench Multi | 3390 | 9287 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 2392x1080 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 5000 mAh | 8550 mAh | |
| Charging | 45W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 32 MP | 20 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 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 | |
| Launch price | $329 | $420 |
Camera comparison
Nothing Phone (3a)
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 32MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Nothing Phone (3a)
- 6.8" AMOLED
- Resolution: 2392x1080
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Nothing Phone (3a)
- 5000 mAh
- Wired: 45W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Nothing Phone (3a) and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Nothing Phone (3a) by 67.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $91. Nothing Phone (3a) was $91 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Nothing Phone (3a) (92/100 vs 60/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Nothing Phone (3a) (94/100 vs 79/100).
camera
In the "camera" category, the Nothing Phone (3a) notably outperforms the Redmi K90 Ultra (61/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Nothing Phone (3a) (78/100 vs 48/100).
portability
In the "portability" category, the Nothing Phone (3a) is a bit better (54/100 vs 40/100).
Frequently asked questions
Which is better: the Nothing Phone (3a) or the Redmi K90 Ultra?
The Redmi K90 Ultra is noticeably better than the Nothing Phone (3a) — the overall rating gap is 13 points.
What is the rating of the Nothing Phone (3a) and the Redmi K90 Ultra?
The Nothing Phone (3a) has a MobileRank rating of 60/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Nothing Phone (3a) or the Redmi K90 Ultra?
The Nothing Phone (3a) leads on camera score (61/100 vs 37/100).
Which is more powerful: the Nothing Phone (3a) or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 60/100).
Should you choose the Nothing Phone (3a) over the Redmi K90 Ultra?
The Nothing Phone (3a) 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.