OnePlus Ace 6 Ultra vs Xiaomi 18 Pro Max
87.4Performance64.4
82.3Display69.8
42.6Camera83.6
85.9Battery92
86.7Features86.7
6 spec wins — OnePlus Ace 6 Ultra8 spec wins — Xiaomi 18 Pro Max
InnoReviews verdict
This one is close to a dead heat: OnePlus Ace 6 Ultra scores 77 against 77.1 for Xiaomi 18 Pro Max. Pick by the categories that matter to you — Xiaomi 18 Pro Max edges ahead in camera and battery, or by price.
Which would you pick?
Key differences
Reasons to pick the OnePlus Ace 6 Ultra
- Stronger performance score: 87 vs 64
- Stronger display score: 82 vs 70
- 38% higher Refresh rate: 165 Hz vs 120 Hz
- 20% higher Wired charging: 120 W vs 100 W
Reasons to pick the Xiaomi 18 Pro Max
- Stronger camera score: 84 vs 43
- Stronger battery score: 92 vs 86
- 525% higher ultra-wide: 50 MP vs 8 MP
- 300% higher Main camera: 200 MP vs 50 MP
- 220% higher Optical zoom: 3.2 x vs 1 x
Display
| Spec | OnePlus Ace 6 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| Screen size | 6.78 ″ | 6.9 ″+2% |
| Panel type | AMOLED | LTPO AMOLED |
| Resolution | 1272x2772 | 1208x2624 |
| Pixel density | 450 ppi+8% | 418 ppi |
| Refresh rate | 165 Hz+38% | 120 Hz |
| Peak brightness | 3,600 nits | 4,000 nits+11% |
| Screen-to-body | 93.6 %+2% | 91.6 % |
Performance
| Spec | OnePlus Ace 6 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| Chipset | MediaTek Dimensity 9500 | Snapdragon 8 Elite Extreme Gen 6 |
| AnTuTu | 3,569,796Top 7% | — |
| AnTuTu 11 (CPU) | 970,388Top 8% | — |
| AnTuTu 11 (GPU) | 1,324,188Top 9% | — |
| AnTuTu 11 (Memory) | 467,733Top 6% | — |
| AnTuTu 11 (UX) | 807,487Top 3% | — |
| RAM (max) | 16 GB | 16 GB |
| Storage options | 256/512GB/1TB | 256/512GB/1TB |
| Storage type | UFS 4.1 | UFS 4.1 |
Camera
| Spec | OnePlus Ace 6 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| Main camera | 50 MP | 200 MP+300% |
| Main aperture | f/1.8 | f/1.7 |
| Ultra-wide | 8 MP | 50 MP+525% |
| Telephoto | — | 200 MP |
| Optical zoom | 1 x | 3.2 x+220% |
| Max video | 4K@60fps | 8K@30fps |
| Front camera | 16 MP | 50 MP+213% |
| OIS | Yes | Yes |
Battery
| Spec | OnePlus Ace 6 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| Capacity | 8,600 mAh+1% | 8,500 mAh |
| Wired charging | 120 W+20% | 100 W |
| Wireless charging | 0 W | 50 W |
Design
| Spec | OnePlus Ace 6 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| Weight | 217 g+8% | 235 g |
| Thickness | 8.5 mm | 8.4 mm+1% |
| IP rating | IP66/IP68/IP69/IP69K | IP66/IP68/IP69 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | OnePlus Ace 6 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 6.0 | 6.0 |
| NFC | Yes | Yes |
| USB | USB-C 2.0 | USB-C 3.2 |
| eSIM | — | No |
Software
| Spec | OnePlus Ace 6 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| OS at launch | Android 16 (ColorOS 16) | Android 17 (HyperOS 4) |
Audio
| Spec | OnePlus Ace 6 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |