Oppo A31 vs Xiaomi 18 Pro Max
The Oppo A31 (2020) runs on the MediaTek Helio P35, while the Xiaomi 18 Pro Max (2026) runs on the Qualcomm Snapdragon 8 Elite Extreme Gen 6. By overall MobileRank rating, the Xiaomi 18 Pro Max leads — 92/100 vs 25/100 (a 67-point difference). Key differences: the Xiaomi 18 Pro Max has the bigger battery (8500 mAh vs 4230); the main camera is 12 MP vs 200 MP; the Xiaomi 18 Pro Max is faster in AnTuTu (5,001,234 vs 199,111); the Xiaomi 18 Pro Max has NFC for contactless payments, the Oppo A31 doesn't; the Oppo A31 is noticeably lighter (180g vs 235g).
Profile comparison
Category scores
Oppo A31
Xiaomi 18 Pro Max
What makes Oppo A31 better?
- Lighter: 180g vs 235g
- Better portability (68/100 vs 33/100)
What makes Xiaomi 18 Pro Max better?
- Higher AnTuTu: 5001234 vs 199111
- Better Geekbench Single: 4327 vs 476
- Better Geekbench Multi: 12873 vs 828
- Bigger battery: 8500 vs 4230 mAh
- Better main camera: 200MP vs 12MP
- Higher performance (100/100 vs 19/100)
- Better camera (100/100 vs 10/100)
- Longer battery life (92/100 vs 39/100)
- Better display (82/100 vs 39/100)
Comparison verdict
Comparing the Oppo A31 vs the Xiaomi 18 Pro Max, the Xiaomi 18 Pro Max scores 67 points higher (92/100 vs 25/100). In the "performance" category, the Xiaomi 18 Pro Max leads (100/100 vs 19/100). In the "camera" category, the Xiaomi 18 Pro Max leads (100/100 vs 10/100). In the "battery" category, the Xiaomi 18 Pro Max leads (92/100 vs 39/100). In the "performance" category, the Xiaomi 18 Pro Max significantly outperforms the Oppo A31 (100/100 vs 19/100). In the "display" category, the Xiaomi 18 Pro Max significantly outperforms the Oppo A31 (82/100 vs 39/100). In the "camera" category, the Xiaomi 18 Pro Max significantly outperforms the Oppo A31 (100/100 vs 10/100). In the "battery" category, the Xiaomi 18 Pro Max significantly outperforms the Oppo A31 (92/100 vs 39/100). In the "portability" category, the Oppo A31 significantly outperforms the Xiaomi 18 Pro Max (68/100 vs 33/100).
Specs comparison
| Specification | Oppo A31 | Xiaomi 18 Pro Max | |
|---|---|---|---|
| Processor | MediaTek Helio P35 | Qualcomm Snapdragon 8 Elite Extreme Gen 6 | |
| AnTuTu | 199111 | 5001234 | |
| Geekbench Single | 476 | 4327 | |
| Geekbench Multi | 828 | 12873 | |
| Display | 6.5" IPS LCD | 6.9" LTPO AMOLED | |
| Resolution | 720x1600 | 1208x2624 | |
| Refresh rate | — | 120 Hz | |
| Battery | 4230 mAh | 8500 mAh | |
| Charging | — | 100W | |
| Wireless charging | — | 50W | |
| Main camera | 12 MP | 200 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 8 MP | 50 MP | |
| RAM | 4GB | 12GB / 16GB | |
| Storage | 128GB | 256GB / 512GB / 1TB | |
| OS | Android 9.0 (Pie); ColorOS 6.1 | Android 17 | |
| Brightness (peak) | 480 nits | 4000 nits | |
| NFC | no | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 163.9×75.5×8.3 mm | 163.4×77.6×8.4 mm | |
| Weight | 180 g | 235 g | |
| Launch price | — | $986 |
Camera comparison
Oppo A31
- Main: 12MP f/1.8
- Front: 8MP
Xiaomi 18 Pro Max
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 50MP
Display comparison
Oppo A31
- 6.5" IPS LCD
- Resolution: 720x1600
- Refresh rate: —
Xiaomi 18 Pro Max
- 6.9" LTPO AMOLED
- Resolution: 1208x2624
- Refresh rate: 120 Hz
Battery and charging
Oppo A31
- 4230 mAh
- Wireless charging: no data
Xiaomi 18 Pro Max
- 8500 mAh
- Wired: 100W
- Wireless: 50W
Overall performance score
We compared Oppo A31 and Xiaomi 18 Pro Max, covering their specs and all relevant benchmarks.
Xiaomi 18 Pro Max leads Oppo A31 by 96.0% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Oppo A31
Price unknownDetailed category analysis
performance
In the "performance" category, the Xiaomi 18 Pro Max significantly outperforms the Oppo A31 (100/100 vs 19/100).
display
In the "display" category, the Xiaomi 18 Pro Max significantly outperforms the Oppo A31 (82/100 vs 39/100).
camera
In the "camera" category, the Xiaomi 18 Pro Max significantly outperforms the Oppo A31 (100/100 vs 10/100).
battery
In the "battery" category, the Xiaomi 18 Pro Max significantly outperforms the Oppo A31 (92/100 vs 39/100).
portability
In the "portability" category, the Oppo A31 significantly outperforms the Xiaomi 18 Pro Max (68/100 vs 33/100).
Frequently asked questions
Which is better: the Oppo A31 or the Xiaomi 18 Pro Max?
The Xiaomi 18 Pro Max significantly outperforms the Oppo A31 by 67 points (92/100 vs 25/100).
What is the rating of the Oppo A31 and the Xiaomi 18 Pro Max?
The Oppo A31 has a MobileRank rating of 25/100, the Xiaomi 18 Pro Max — 92/100.
Which has the better camera: the Oppo A31 or the Xiaomi 18 Pro Max?
The Xiaomi 18 Pro Max leads on camera score (100/100 vs 10/100).
Which is more powerful: the Oppo A31 or the Xiaomi 18 Pro Max?
The Xiaomi 18 Pro Max leads on performance (100/100 vs 19/100).
Should you choose the Oppo A31 over the Xiaomi 18 Pro Max?
The Xiaomi 18 Pro Max is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.