Oppo K12x vs Xiaomi 18 Pro Max
The Oppo K12x (2024) runs on the Qualcomm Snapdragon 695 5G, 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 51/100 (a 41-point difference). Key differences: the Xiaomi 18 Pro Max has the bigger battery (8500 mAh vs 5500); the main camera is 50 MP vs 200 MP; the Xiaomi 18 Pro Max is faster in AnTuTu (5,001,234 vs 592,015); the Xiaomi 18 Pro Max has NFC for contactless payments, the Oppo K12x doesn't; the Oppo K12x is noticeably lighter (191g vs 235g).
Profile comparison
Category scores
Oppo K12x
Xiaomi 18 Pro Max
What makes Oppo K12x better?
- Lighter: 191g vs 235g
- Better portability (63/100 vs 33/100)
What makes Xiaomi 18 Pro Max better?
- Higher AnTuTu: 5001234 vs 592015
- Better Geekbench Single: 4327 vs 905
- Better Geekbench Multi: 12873 vs 2101
- Bigger battery: 8500 vs 5500 mAh
- Faster charging: 100W vs 80W
- Better main camera: 200MP vs 50MP
- Higher performance (100/100 vs 46/100)
- Better camera (100/100 vs 32/100)
- Longer battery life (92/100 vs 62/100)
- Better display (82/100 vs 79/100)
Comparison verdict
Comparing the Oppo K12x vs the Xiaomi 18 Pro Max, the Xiaomi 18 Pro Max scores 41 points higher (92/100 vs 51/100). In the "performance" category, the Xiaomi 18 Pro Max leads (100/100 vs 46/100). In the "camera" category, the Xiaomi 18 Pro Max leads (100/100 vs 32/100). In the "battery" category, the Xiaomi 18 Pro Max leads (92/100 vs 62/100). In the "performance" category, the Xiaomi 18 Pro Max significantly outperforms the Oppo K12x (100/100 vs 46/100). In the "display" category, the Xiaomi 18 Pro Max and the Oppo K12x are nearly equal (82/100 vs 79/100). In the "camera" category, the Xiaomi 18 Pro Max significantly outperforms the Oppo K12x (100/100 vs 32/100). In the "battery" category, the Xiaomi 18 Pro Max significantly outperforms the Oppo K12x (92/100 vs 62/100). In the "portability" category, the Oppo K12x significantly outperforms the Xiaomi 18 Pro Max (63/100 vs 33/100).
Specs comparison
| Specification | Oppo K12x | Xiaomi 18 Pro Max | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 695 5G | Qualcomm Snapdragon 8 Elite Extreme Gen 6 | |
| AnTuTu | 592015 | 5001234 | |
| Geekbench Single | 905 | 4327 | |
| Geekbench Multi | 2101 | 12873 | |
| Display | 6.7" OLED | 6.9" LTPO AMOLED | |
| Resolution | 1080x2400 | 1208x2624 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5500 mAh | 8500 mAh | |
| Charging | 80W | 100W | |
| Wireless charging | 0W | 50W | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 16 MP | 50 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 14, ColorOS 14 | Android 17 | |
| Brightness (peak) | 2100 nits | 4000 nits | |
| NFC | no | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 162.9×75.6×8.1 mm | 163.4×77.6×8.4 mm | |
| Weight | 191 g | 235 g | |
| Launch price | — | $986 |
Camera comparison
Oppo K12x
- Main: 50MP f/1.8
- Front: 16MP
Xiaomi 18 Pro Max
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 50MP
Display comparison
Oppo K12x
- 6.7" OLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Xiaomi 18 Pro Max
- 6.9" LTPO AMOLED
- Resolution: 1208x2624
- Refresh rate: 120 Hz
Battery and charging
Oppo K12x
- 5500 mAh
- Wired: 80W
- No wireless charging
Xiaomi 18 Pro Max
- 8500 mAh
- Wired: 100W
- Wireless: 50W
Overall performance score
We compared Oppo K12x and Xiaomi 18 Pro Max, covering their specs and all relevant benchmarks.
Xiaomi 18 Pro Max leads Oppo K12x by 88.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Oppo K12x
Price unknownDetailed category analysis
performance
In the "performance" category, the Xiaomi 18 Pro Max significantly outperforms the Oppo K12x (100/100 vs 46/100).
display
In the "display" category, the Xiaomi 18 Pro Max and the Oppo K12x are nearly equal (82/100 vs 79/100).
camera
In the "camera" category, the Xiaomi 18 Pro Max significantly outperforms the Oppo K12x (100/100 vs 32/100).
battery
In the "battery" category, the Xiaomi 18 Pro Max significantly outperforms the Oppo K12x (92/100 vs 62/100).
portability
In the "portability" category, the Oppo K12x significantly outperforms the Xiaomi 18 Pro Max (63/100 vs 33/100).
Frequently asked questions
Which is better: the Oppo K12x or the Xiaomi 18 Pro Max?
The Xiaomi 18 Pro Max significantly outperforms the Oppo K12x by 41 points (92/100 vs 51/100).
What is the rating of the Oppo K12x and the Xiaomi 18 Pro Max?
The Oppo K12x has a MobileRank rating of 51/100, the Xiaomi 18 Pro Max — 92/100.
Which has the better camera: the Oppo K12x or the Xiaomi 18 Pro Max?
The Xiaomi 18 Pro Max leads on camera score (100/100 vs 32/100).
Which is more powerful: the Oppo K12x or the Xiaomi 18 Pro Max?
The Xiaomi 18 Pro Max leads on performance (100/100 vs 46/100).
Should you choose the Oppo K12x 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.