Between the iPhone 15 Pro Max and Xiaomi 15, the iPhone 15 Pro Max comes out ahead in screen size and promised os updates, while the Xiaomi 15 wins on wired charging and wireless charging. Overall, the iPhone 15 Pro Max scores 63.2 and the Xiaomi 15 scores 70 on our Mars Score.
Which should you buy?
The Xiaomi 15 edges ahead on the Mars Score (63.2 vs 70), but the 6.8-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the iPhone 15 Pro Max if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are screen size, promised os updates.
Pick the Xiaomi 15 if you photograph or shoot video regularly and want the better imaging pipeline of the two. Its strongest claims are wired charging, wireless charging, front camera, among others.
Both ship with comparable refresh rate, 5g support, water resistance, so those specs don't separate the two — focus on the differences below.
Bottom line: the Xiaomi 15 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Apple - iPhone 15 Pro Max wins
- ▲Screen size — 5.35% more. 6.7 " vs 6.36 ".
- ▲Promised OS updates: 5 (vs 4).
Why Xiaomi 15 wins
- ▲Wired charging — 233.33% more. 90 W vs 27 W.
- ▲Wireless charging — 233.33% more. 50 W vs 15 W.
- ▲Front camera — 166.67% more. 32 MP vs 12 MP.
- ▲AnTuTu — 75.16% more. 2680000 vs 1530000.
- ▲RAM — 50.00% more. 12 GB vs 8 GB.
- ▲Weight — 29.00 g less. 192 vs 221.
- ▲Battery capacity — 22.12% more. 5400 mAh vs 4422 mAh.
- ▲Main camera — 4.17% more. 50 MP vs 48 MP.
Spec comparison
Design
| Spec | Apple - iPhone 15 Pro Max | Xiaomi 15 |
|---|---|---|
| Weight | 221 g | 192 glead |
| Thickness | 8.25 mm | 8.1 mmlead |
| Water resistanceⓘ | IP68 | IP68 |
| Form factor | bar | bar |
Display
| Spec | Apple - iPhone 15 Pro Max | Xiaomi 15 |
|---|---|---|
| Screen sizeⓘ | 6.7 "lead | 6.36 " |
| Pixel densityⓘ | 460 ppi | 460 ppi |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 2000 nits | 3200 nitslead |
Performance
Cameras
| Spec | Apple - iPhone 15 Pro Max | Xiaomi 15 |
|---|---|---|
| Main cameraⓘ | 48 MP | 50 MPlead |
| Front camera | 12 MP | 32 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Apple - iPhone 15 Pro Max | Xiaomi 15 |
|---|---|---|
| Battery capacity | 4422 mAh | 5400 mAhlead |
| Wired chargingⓘ | 27 W | 90 Wlead |
| Wireless chargingⓘ | 15 W | 50 Wlead |
Connectivity
| Spec | Apple - iPhone 15 Pro Max | Xiaomi 15 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Apple - iPhone 15 Pro Max | Xiaomi 15 |
|---|---|---|
| OS | iOSlead | Android |
| Promised OS updates | 5 yearslead | 4 years |
Frequently asked
Which has better battery, iPhone 15 Pro Max or Xiaomi 15?+
Xiaomi 15 has 22.1% more battery — 4422 mAh vs 5400 mAh.
Which is lighter, iPhone 15 Pro Max or Xiaomi 15?+
Xiaomi 15 is 29g lighter — 221g vs 192g.
Is iPhone 15 Pro Max waterproof?+
iPhone 15 Pro Max has an IP68 rating.
Does Xiaomi 15 support 5G?+
Yes, Xiaomi 15 supports 5G.
Which has more RAM, iPhone 15 Pro Max or Xiaomi 15?+
Xiaomi 15 offers 12GB of RAM.
Which has a better camera, iPhone 15 Pro Max or Xiaomi 15?+
Xiaomi 15 has a 50 MP main camera vs 48 MP.
Spec-level deep dives
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