Nubia A77 vs Redmi K90 Ultra
The Nubia A77 (2026) runs on the Unisoc T8300, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $260 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 43/100 (a 30-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 639,225); the Nubia A77 is noticeably lighter (193g vs 227g).
Profile comparison
Category scores
Nubia A77
Redmi K90 Ultra
What makes Nubia A77 better?
- Lighter: 193g vs 227g
- Cheaper at launch: $260 vs $420
- Better portability (60/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 639225
- Better Geekbench Single: 3013 vs 880
- Better Geekbench Multi: 9287 vs 2073
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 22W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 47/100)
- Better camera (37/100 vs 30/100)
- Longer battery life (78/100 vs 43/100)
- Better display (94/100 vs 55/100)
Comparison verdict
Comparing the Nubia A77 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 30 points higher (73/100 vs 43/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 47/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 43/100). Value score: Nubia A77 — 34/100, 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 A77 (92/100 vs 47/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Nubia A77 (94/100 vs 55/100). In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 30/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Nubia A77 (78/100 vs 43/100). In the "portability" category, the Nubia A77 notably outperforms the Redmi K90 Ultra (60/100 vs 40/100).
Specs comparison
| Specification | Nubia A77 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Unisoc T8300 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 639225 | 3233695 | |
| Geekbench Single | 880 | 3013 | |
| Geekbench Multi | 2073 | 9287 | |
| Display | 6.8" IPS LCD | 6.8" AMOLED | |
| Resolution | 720x1640 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 5000 mAh | 8550 mAh | |
| Charging | 22W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 8 MP | 20 MP | |
| RAM | 6GB | 12GB / 16GB | |
| Storage | 128GB | 256GB / 512GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | — | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP64 | IP68/IP69 | |
| Dimensions | 168.0×77.0×8.3 mm | 162.9×77.9×8.2 mm | |
| Weight | 193 g | 227 g | |
| Launch price | $260 | $420 |
Camera comparison
Nubia A77
- Main: 50MP f/1.8
- Front: 8MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Nubia A77
- 6.8" IPS LCD
- Resolution: 720x1640
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Nubia A77
- 5000 mAh
- Wired: 22W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Nubia A77 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Nubia A77 by 80.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $160. Nubia A77 was $160 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Nubia A77 (92/100 vs 47/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Nubia A77 (94/100 vs 55/100).
camera
In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 30/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Nubia A77 (78/100 vs 43/100).
portability
In the "portability" category, the Nubia A77 notably outperforms the Redmi K90 Ultra (60/100 vs 40/100).
Frequently asked questions
Which is better: the Nubia A77 or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Nubia A77 by 30 points (73/100 vs 43/100).
What is the rating of the Nubia A77 and the Redmi K90 Ultra?
The Nubia A77 has a MobileRank rating of 43/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Nubia A77 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on camera score (37/100 vs 30/100).
Which is more powerful: the Nubia A77 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 47/100).
Should you choose the Nubia A77 over the Redmi K90 Ultra?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.