OnePlus Ace vs Xiaomi 18 Pro Max
The OnePlus Ace (2022) runs on the MediaTek Dimensity 8100-Max, 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 58/100 (a 34-point difference). Key differences: the Xiaomi 18 Pro Max has the bigger battery (8500 mAh vs 4500); the main camera is 50 MP vs 200 MP; the Xiaomi 18 Pro Max is faster in AnTuTu (5,001,234 vs 1,138,764); the OnePlus Ace is noticeably lighter (186g vs 235g).
Profile comparison
Category scores
OnePlus Ace
Xiaomi 18 Pro Max
What makes OnePlus Ace better?
- Faster charging: 150W vs 100W
- Lighter: 186g vs 235g
- Better portability (65/100 vs 33/100)
What makes Xiaomi 18 Pro Max better?
- Higher AnTuTu: 5001234 vs 1138764
- Better Geekbench Single: 4327 vs 1139
- Better Geekbench Multi: 12873 vs 3842
- Bigger battery: 8500 vs 4500 mAh
- Better main camera: 200MP vs 50MP
- Higher performance (100/100 vs 62/100)
- Better camera (100/100 vs 35/100)
- Longer battery life (92/100 vs 64/100)
- Better display (82/100 vs 80/100)
Comparison verdict
Comparing the OnePlus Ace vs the Xiaomi 18 Pro Max, the Xiaomi 18 Pro Max scores 34 points higher (92/100 vs 58/100). In the "performance" category, the Xiaomi 18 Pro Max leads (100/100 vs 62/100). In the "camera" category, the Xiaomi 18 Pro Max leads (100/100 vs 35/100). In the "battery" category, the Xiaomi 18 Pro Max leads (92/100 vs 64/100). In the "performance" category, the Xiaomi 18 Pro Max significantly outperforms the OnePlus Ace (100/100 vs 62/100). In the "display" category, the Xiaomi 18 Pro Max and the OnePlus Ace are nearly equal (82/100 vs 80/100). In the "camera" category, the Xiaomi 18 Pro Max significantly outperforms the OnePlus Ace (100/100 vs 35/100). In the "battery" category, the Xiaomi 18 Pro Max notably outperforms the OnePlus Ace (92/100 vs 64/100). In the "portability" category, the OnePlus Ace significantly outperforms the Xiaomi 18 Pro Max (65/100 vs 33/100).
Specs comparison
| Specification | OnePlus Ace | Xiaomi 18 Pro Max | |
|---|---|---|---|
| Processor | MediaTek Dimensity 8100-Max | Qualcomm Snapdragon 8 Elite Extreme Gen 6 | |
| AnTuTu | 1138764 | 5001234 | |
| Geekbench Single | 1139 | 4327 | |
| Geekbench Multi | 3842 | 12873 | |
| Display | 6.7" OLED | 6.9" LTPO AMOLED | |
| Resolution | 1080x2412 | 1208x2624 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 4500 mAh | 8500 mAh | |
| Charging | 150W | 100W | |
| Wireless charging | — | 50W | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 16 MP | 50 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 12, ColorOS 12.1 | Android 17 | |
| Brightness (peak) | 950 nits | 4000 nits | |
| NFC | yes | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 163.3×75.5×8.2 mm | 163.4×77.6×8.4 mm | |
| Weight | 186 g | 235 g | |
| Launch price | — | $986 |
Camera comparison
OnePlus Ace
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Front: 16MP
Xiaomi 18 Pro Max
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 50MP
Display comparison
OnePlus Ace
- 6.7" OLED
- Resolution: 1080x2412
- Refresh rate: 120 Hz
Xiaomi 18 Pro Max
- 6.9" LTPO AMOLED
- Resolution: 1208x2624
- Refresh rate: 120 Hz
Battery and charging
OnePlus Ace
- 4500 mAh
- Wired: 150W
- Wireless: supported, wattage unknown
Xiaomi 18 Pro Max
- 8500 mAh
- Wired: 100W
- Wireless: 50W
Overall performance score
We compared OnePlus Ace and Xiaomi 18 Pro Max, covering their specs and all relevant benchmarks.
Xiaomi 18 Pro Max leads OnePlus Ace by 77.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
OnePlus Ace
Price unknownDetailed category analysis
performance
In the "performance" category, the Xiaomi 18 Pro Max significantly outperforms the OnePlus Ace (100/100 vs 62/100).
display
In the "display" category, the Xiaomi 18 Pro Max and the OnePlus Ace are nearly equal (82/100 vs 80/100).
camera
In the "camera" category, the Xiaomi 18 Pro Max significantly outperforms the OnePlus Ace (100/100 vs 35/100).
battery
In the "battery" category, the Xiaomi 18 Pro Max notably outperforms the OnePlus Ace (92/100 vs 64/100).
portability
In the "portability" category, the OnePlus Ace significantly outperforms the Xiaomi 18 Pro Max (65/100 vs 33/100).
Frequently asked questions
Which is better: the OnePlus Ace or the Xiaomi 18 Pro Max?
The Xiaomi 18 Pro Max significantly outperforms the OnePlus Ace by 34 points (92/100 vs 58/100).
What is the rating of the OnePlus Ace and the Xiaomi 18 Pro Max?
The OnePlus Ace has a MobileRank rating of 58/100, the Xiaomi 18 Pro Max — 92/100.
Which has the better camera: the OnePlus Ace or the Xiaomi 18 Pro Max?
The Xiaomi 18 Pro Max leads on camera score (100/100 vs 35/100).
Which is more powerful: the OnePlus Ace or the Xiaomi 18 Pro Max?
The Xiaomi 18 Pro Max leads on performance (100/100 vs 62/100).
Should you choose the OnePlus Ace over the Xiaomi 18 Pro Max?
The OnePlus Ace is a better fit for active users. 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.