OPPO A6 vs Redmi K90 Ultra
The OPPO A6 (2026) runs on the Snapdragon 685, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $169 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 41/100 (a 32-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 476,175).
Profile comparison
Category scores
OPPO A6
Redmi K90 Ultra
What makes OPPO A6 better?
- Lighter: 215g vs 227g
- Cheaper at launch: $169 vs $420
- Better portability (44/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 476175
- Better Geekbench Single: 3013 vs 466
- Better Geekbench Multi: 9287 vs 1396
- Bigger battery: 8550 vs 7000 mAh
- Faster charging: 100W vs 45W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 34/100)
- Better camera (37/100 vs 30/100)
- Longer battery life (78/100 vs 60/100)
- Better display (94/100 vs 55/100)
Comparison verdict
Comparing the OPPO A6 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 32 points higher (73/100 vs 41/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 34/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 60/100). Value score: OPPO A6 — 52/100, 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 OPPO A6 (92/100 vs 34/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the OPPO A6 (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 A6 (78/100 vs 60/100). In the "portability" category, the OPPO A6 and the Redmi K90 Ultra are nearly equal (44/100 vs 40/100).
Specs comparison
| Specification | OPPO A6 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Snapdragon 685 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 476175 | 3233695 | |
| Geekbench Single | 466 | 3013 | |
| Geekbench Multi | 1396 | 9287 | |
| Display | 6.8" IPS LCD | 6.8" AMOLED | |
| Resolution | 1570x720 | 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 | 4GB / 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 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 | $169 | $420 |
Camera comparison
OPPO A6
- Main: 50MP f/1.8
- Front: 8MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
OPPO A6
- 6.8" IPS LCD
- Resolution: 1570x720
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
OPPO A6
- 7000 mAh
- Wired: 45W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared OPPO A6 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads OPPO A6 by 85.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $251. OPPO A6 was $251 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the OPPO A6 (92/100 vs 34/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the OPPO A6 (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 A6 (78/100 vs 60/100).
portability
In the "portability" category, the OPPO A6 and the Redmi K90 Ultra are nearly equal (44/100 vs 40/100).
Frequently asked questions
Which is better: the OPPO A6 or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the OPPO A6 by 32 points (73/100 vs 41/100).
What is the rating of the OPPO A6 and the Redmi K90 Ultra?
The OPPO A6 has a MobileRank rating of 41/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the OPPO A6 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on camera score (37/100 vs 30/100).
Which is more powerful: the OPPO A6 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 34/100).
Should you choose the OPPO A6 over the Redmi K90 Ultra?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.