Xiaomi 15 Ultra vs Xiaomi 18 Pro Max
79.1Performance64.4
69.1Display69.8
73.2Camera83.6
79Battery92
78.7Features86.7
5 spec wins — Xiaomi 15 Ultra8 spec wins — Xiaomi 18 Pro Max
InnoReviews verdict
This one is close to a dead heat: Xiaomi 15 Ultra scores 75.9 against 77.1 for Xiaomi 18 Pro Max. Pick by the categories that matter to you — Xiaomi 18 Pro Max edges ahead in battery and camera, or by price.
Which would you pick?
Key differences
Reasons to pick the Xiaomi 15 Ultra
- Stronger performance score: 79 vs 64
- 60% higher Wireless charging: 80 W vs 50 W
- 34% higher Optical zoom: 4.3 x vs 3.2 x
- 25% higher Pixel density: 522 ppi vs 418 ppi
- Has eSIM — the other doesn't
Reasons to pick the Xiaomi 18 Pro Max
- Stronger camera score: 84 vs 73
- Stronger battery score: 92 vs 79
- Stronger features score: 87 vs 79
- 300% higher Main camera: 200 MP vs 50 MP
- 57% higher capacity: 8,500 mAh vs 5,410 mAh
Display
| Spec | Xiaomi 15 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| Screen size | 6.73 ″ | 6.9 ″+3% |
| Panel type | LTPO AMOLED | LTPO AMOLED |
| Resolution | 1440x3200 | 1208x2624 |
| Pixel density | 522 ppi+25% | 418 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 3,200 nits | 4,000 nits+25% |
| Screen-to-body | 90 % | 91.6 %+2% |
Performance
| Spec | Xiaomi 15 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| Chipset | Snapdragon 8 Elite | Snapdragon 8 Elite Extreme Gen 6 |
| AnTuTu | 2,650,000 | — |
| Geekbench 6 (single) | 3,050Top 12% | — |
| Geekbench 6 (multi) | 9,600Top 11% | — |
| RAM (max) | 16 GB | 16 GB |
| Storage options | 256/512GB/1TB | 256/512GB/1TB |
| Storage type | UFS 4.1 | UFS 4.1 |
Camera
| Spec | Xiaomi 15 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| Main camera | 50 MP | 200 MP+300% |
| Main aperture | f/1.63 | f/1.7 |
| Ultra-wide | 50 MP | 50 MP |
| Telephoto | 200 MP | 200 MP |
| Optical zoom | 4.3 x+34% | 3.2 x |
| Max video | 8K@30fps | 8K@30fps |
| Front camera | 32 MP | 50 MP+56% |
| OIS | Yes | Yes |
Battery
| Spec | Xiaomi 15 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| Capacity | 5,410 mAh | 8,500 mAh+57% |
| Wired charging | 90 W | 100 W+11% |
| Wireless charging | 80 W+60% | 50 W |
| Active use endurance | 12 h | — |
Design
| Spec | Xiaomi 15 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| Weight | 226 g+4% | 235 g |
| Thickness | 9.4 mm | 8.4 mm+10% |
| IP rating | IP68 | IP66/IP68/IP69 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | Xiaomi 15 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 3.2 | USB-C 3.2 |
| eSIM | Yes | No |
Software
| Spec | Xiaomi 15 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| OS at launch | Android 15 (HyperOS 2) | Android 17 (HyperOS 4) |
| OS update pledge | 4 years | — |
Audio
| Spec | Xiaomi 15 Ultra | Xiaomi 18 Pro Max |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |