Oppo A6t Pro 4G vs Redmi K90 Ultra
The Oppo A6t Pro 4G (2026) runs on the Qualcomm Snapdragon 685, 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 40/100 (a 33-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 7000); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 467,392).
Oppo A6t Pro 4G
Redmi K90 Ultra
- Lighter: 215g vs 227g
- Better portability (44/100 vs 40/100)
- Higher AnTuTu: 3233695 vs 467392
- Better Geekbench Single: 3041 vs 466
- Better Geekbench Multi: 9494 vs 1396
- Bigger battery: 8550 vs 7000 mAh
- Faster charging: 100W vs 45W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 33/100)
- Better camera (37/100 vs 30/100)
- Longer battery life (78/100 vs 60/100)
- Better display (94/100 vs 55/100)
Comparing the Oppo A6t Pro 4G vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 33 points higher (73/100 vs 40/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 33/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 60/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Oppo A6t Pro 4G (92/100 vs 33/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Oppo A6t Pro 4G (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 notably outperforms the Oppo A6t Pro 4G (78/100 vs 60/100). In the "portability" category, the Oppo A6t Pro 4G and the Redmi K90 Ultra are nearly equal (44/100 vs 40/100).
| Specification | Oppo A6t Pro 4G | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 685 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 467392 | 3233695 | |
| Geekbench Single | 466 | 3041 | |
| Geekbench Multi | 1396 | 9494 | |
| Display | 6.8" IPS LCD | 6.8" AMOLED | |
| Resolution | 720x1570 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 7000 mAh | 8550 mAh | |
| Charging | 45W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 8 MP | 20 MP | |
| RAM | 8GB | 12GB / 16GB | |
| Storage | 128GB | 256GB / 512GB | |
| OS | Android 15, ColorOS 15 | Android 16 | |
| Brightness (peak) | 1125 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68/IP69 | |
| Dimensions | 166.6×78.5×8.6 mm | 162.9×77.9×8.2 mm | |
| Weight | 215 g | 227 g | |
| Launch price | — | $420 |
Oppo A6t Pro 4G
- Main: 50MP f/f/1.8
- Front: 8MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Oppo A6t Pro 4G
- 6.8" IPS LCD
- Resolution: 720x1570
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Oppo A6t Pro 4G
- 7000 mAh
- Wired: 45W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
We compared Oppo A6t Pro 4G and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Oppo A6t Pro 4G by 85.5% in our overall performance rating.
Oppo A6t Pro 4G
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Oppo A6t Pro 4G (92/100 vs 33/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Oppo A6t Pro 4G (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 notably outperforms the Oppo A6t Pro 4G (78/100 vs 60/100).
portability
In the "portability" category, the Oppo A6t Pro 4G and the Redmi K90 Ultra are nearly equal (44/100 vs 40/100).
Which is better: the Oppo A6t Pro 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Oppo A6t Pro 4G by 33 points (73/100 vs 40/100).
What is the rating of the Oppo A6t Pro 4G and the Redmi K90 Ultra?
The Oppo A6t Pro 4G has a MobileRank rating of 40/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Oppo A6t Pro 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on camera score (37/100 vs 30/100).
Which is more powerful: the Oppo A6t Pro 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 33/100).
Should you choose the Oppo A6t Pro 4G over the Redmi K90 Ultra?
The Oppo A6t Pro 4G is a better fit for everyday use. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.