OPPO A6s Pro 5G (China) vs Redmi K90 Ultra
The OPPO A6s Pro 5G (China) (2026) runs on the MediaTek Dimensity 6360 Max, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $290 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 52/100 (a 21-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 7000); the OPPO A6s Pro 5G (China) is noticeably lighter (194g vs 227g).
OPPO A6s Pro 5G (China)
Redmi K90 Ultra
- Lighter: 194g vs 227g
- Cheaper at launch: $290 vs $420
- Longer battery life (80/100 vs 78/100)
- Better portability (59/100 vs 40/100)
- Better Geekbench Single: 3041 vs 850
- Better Geekbench Multi: 9494 vs 2250
- Bigger battery: 8550 vs 7000 mAh
- Faster charging: 100W vs 80W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 43/100)
- Better camera (37/100 vs 32/100)
- Better display (94/100 vs 80/100)
Comparing the OPPO A6s Pro 5G (China) vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 21 points higher (73/100 vs 52/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 43/100). Value score: OPPO A6s Pro 5G (China) — 48/100, Redmi K90 Ultra — 82/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Redmi K90 Ultra significantly outperforms the OPPO A6s Pro 5G (China) (92/100 vs 43/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 80/100). In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 32/100). In the "battery" category, the OPPO A6s Pro 5G (China) and the Redmi K90 Ultra are nearly equal (80/100 vs 78/100). In the "portability" category, the OPPO A6s Pro 5G (China) notably outperforms the Redmi K90 Ultra (59/100 vs 40/100).
| Specification | OPPO A6s Pro 5G (China) | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 6360 Max | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | — | 3119308 | |
| Geekbench Single | 850 | 3041 | |
| Geekbench Multi | 2250 | 9494 | |
| Display | 6.6" AMOLED | 6.8" AMOLED | |
| Resolution | 1080x2372 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 7000 mAh | 8550 mAh | |
| Charging | 80W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 256GB / 512GB | 256GB / 512GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 1400 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69K | IP68/IP69 | |
| Dimensions | 158.4×75.2×8.3 mm | 162.9×77.9×8.2 mm | |
| Weight | 194 g | 227 g | |
| Launch price | $290 | $420 |
OPPO A6s Pro 5G (China)
- Main: 50MP f/f/1.8
- Front: 16MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
OPPO A6s Pro 5G (China)
- 6.6" AMOLED
- Resolution: 1080x2372
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
OPPO A6s Pro 5G (China)
- 7000 mAh
- Wired: 80W
- Wireless charging: no data
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Launch price difference: $130. OPPO A6s Pro 5G (China) was $130 cheaper at launch.
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the OPPO A6s Pro 5G (China) (92/100 vs 43/100).
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 80/100).
camera
In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 32/100).
battery
In the "battery" category, the OPPO A6s Pro 5G (China) and the Redmi K90 Ultra are nearly equal (80/100 vs 78/100).
portability
In the "portability" category, the OPPO A6s Pro 5G (China) notably outperforms the Redmi K90 Ultra (59/100 vs 40/100).
Which is better: the OPPO A6s Pro 5G (China) or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the OPPO A6s Pro 5G (China) by 21 points (73/100 vs 52/100).
What is the rating of the OPPO A6s Pro 5G (China) and the Redmi K90 Ultra?
The OPPO A6s Pro 5G (China) has a MobileRank rating of 52/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the OPPO A6s Pro 5G (China) or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on camera score (37/100 vs 32/100).
Which is more powerful: the OPPO A6s Pro 5G (China) or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 43/100).
Should you choose the OPPO A6s Pro 5G (China) over the Redmi K90 Ultra?
The OPPO A6s Pro 5G (China) is a better fit for those who care about battery life. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.