Oppo A6x 4G vs Redmi K90
The Oppo A6x 4G (2025) runs on the Qualcomm Snapdragon 685, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 35/100 (a 41-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 6500); the main camera is 13 MP vs 50 MP; the Redmi K90 is faster in AnTuTu (3,077,585 vs 476,175); the Redmi K90 has NFC for contactless payments, the Oppo A6x 4G doesn't.
Profile comparison
Category scores
Oppo A6x 4G
Redmi K90
What makes Oppo A6x 4G better?
- Overall rating 35/100
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 476175
- Better Geekbench Single: 3013 vs 466
- Better Geekbench Multi: 9287 vs 1396
- Bigger battery: 7100 vs 6500 mAh
- Faster charging: 100W vs 5W
- Better main camera: 50MP vs 13MP
- Lighter: 206g vs 210g
- Higher performance (91/100 vs 34/100)
- Better camera (58/100 vs 10/100)
- Longer battery life (72/100 vs 53/100)
- Better display (82/100 vs 55/100)
- Better portability (55/100 vs 47/100)
Comparison verdict
Comparing the Oppo A6x 4G vs the Redmi K90, the Redmi K90 scores 41 points higher (76/100 vs 35/100). In the "performance" category, the Redmi K90 leads (91/100 vs 34/100). In the "camera" category, the Redmi K90 leads (58/100 vs 10/100). In the "battery" category, the Redmi K90 leads (72/100 vs 53/100). In the "performance" category, the Redmi K90 significantly outperforms the Oppo A6x 4G (91/100 vs 34/100). In the "display" category, the Redmi K90 notably outperforms the Oppo A6x 4G (82/100 vs 55/100). In the "camera" category, the Redmi K90 significantly outperforms the Oppo A6x 4G (58/100 vs 10/100). In the "battery" category, the Redmi K90 notably outperforms the Oppo A6x 4G (72/100 vs 53/100). In the "portability" category, the Redmi K90 is a bit better (55/100 vs 47/100).
Specs comparison
| Specification | Oppo A6x 4G | Redmi K90 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 685 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 476175 | 3077585 | |
| Geekbench Single | 466 | 3013 | |
| Geekbench Multi | 1396 | 9287 | |
| Display | 6.8" IPS LCD | 6.6" AMOLED | |
| Resolution | 720x1570 | 2510x1156 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6500 mAh | 7100 mAh | |
| Charging | 5W | 100W | |
| Main camera | 13 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 5 MP | 20 MP | |
| RAM | 4GB / 6GB / 8GB | 12GB / 16GB | |
| Storage | 64GB / 128GB / 256GB | 256GB / 512GB | |
| OS | Android 15, ColorOS 15 | Android 16 | |
| Brightness (peak) | 1125 nits | 3500 nits | |
| NFC | no | yes | |
| Protection | IP64 | IP68 | |
| Dimensions | 166.6×78.5×8.6 mm | 157.5×75.3×8.0 mm | |
| Weight | 210 g | 206 g | |
| Launch price | — | $401 |
Camera comparison
Oppo A6x 4G
- Main: 13MP f/2.2
- Front: 5MP
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Display comparison
Oppo A6x 4G
- 6.8" IPS LCD
- Resolution: 720x1570
- Refresh rate: 120 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Battery and charging
Oppo A6x 4G
- 6500 mAh
- Wired: 5W
- No wireless charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Oppo A6x 4G and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads Oppo A6x 4G by 84.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Oppo A6x 4G
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 significantly outperforms the Oppo A6x 4G (91/100 vs 34/100).
display
In the "display" category, the Redmi K90 notably outperforms the Oppo A6x 4G (82/100 vs 55/100).
camera
In the "camera" category, the Redmi K90 significantly outperforms the Oppo A6x 4G (58/100 vs 10/100).
battery
In the "battery" category, the Redmi K90 notably outperforms the Oppo A6x 4G (72/100 vs 53/100).
portability
In the "portability" category, the Redmi K90 is a bit better (55/100 vs 47/100).
Frequently asked questions
Which is better: the Oppo A6x 4G or the Redmi K90?
The Redmi K90 significantly outperforms the Oppo A6x 4G by 41 points (76/100 vs 35/100).
What is the rating of the Oppo A6x 4G and the Redmi K90?
The Oppo A6x 4G has a MobileRank rating of 35/100, the Redmi K90 — 76/100.
Which has the better camera: the Oppo A6x 4G or the Redmi K90?
The Redmi K90 leads on camera score (58/100 vs 10/100).
Which is more powerful: the Oppo A6x 4G or the Redmi K90?
The Redmi K90 leads on performance (91/100 vs 34/100).
Should you choose the Oppo A6x 4G over the Redmi K90?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.