Between the X Fold 3 Pro and Xiaomi 15, the X Fold 3 Pro comes out ahead in ram and screen size, while the Xiaomi 15 wins on weight and antutu. Overall, the X Fold 3 Pro scores 73.1 and the Xiaomi 15 scores 70 on our Mars Score.
Which should you buy?
The X Fold 3 Pro edges ahead on the Mars Score (73.1 vs 70), but the 3.1-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the X Fold 3 Pro 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 ram, screen size, wired charging, among others.
Pick the Xiaomi 15 if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. Its strongest claims are weight, antutu, pixel density.
Both ship with comparable main camera, refresh rate, 5g support, so those specs don't separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Vivo - X Fold 3 Pro wins
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲Screen size — 26.26% more. 8.03 " vs 6.36 ".
- ▲Wired charging — 11.11% more. 100 W vs 90 W.
- ▲Battery capacity — 5.56% more. 5700 mAh vs 5400 mAh.
- ▲Water resistance: IPX8 (vs IP68).
Why Xiaomi 15 wins
- ▲Weight — 44.00 g less. 192 vs 236.
- ▲AnTuTu — 29.47% more. 2680000 vs 2070000.
- ▲Pixel density — 14.43% more. 460 ppi vs 402 ppi.
Spec comparison
Design
| Spec | Vivo - X Fold 3 Pro | Xiaomi 15 |
|---|---|---|
| Weight | 236 g | 192 glead |
| Thickness | 11.2 mm | 8.1 mmlead |
| Water resistanceⓘ | IPX8lead | IP68 |
| Form factor | foldable_booklead | bar |
Display
| Spec | Vivo - X Fold 3 Pro | Xiaomi 15 |
|---|---|---|
| Screen sizeⓘ | 8.03 "lead | 6.36 " |
| Pixel densityⓘ | 402 ppi | 460 ppilead |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 4500 nitslead | 3200 nits |
Performance
Cameras
| Spec | Vivo - X Fold 3 Pro | Xiaomi 15 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MP | 32 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Vivo - X Fold 3 Pro | Xiaomi 15 |
|---|---|---|
| Battery capacity | 5700 mAhlead | 5400 mAh |
| Wired chargingⓘ | 100 Wlead | 90 W |
| Wireless chargingⓘ | 50 W | 50 W |
Connectivity
| Spec | Vivo - X Fold 3 Pro | Xiaomi 15 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Vivo - X Fold 3 Pro | Xiaomi 15 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 4 years | 4 years |
Frequently asked
Which has better battery, X Fold 3 Pro or Xiaomi 15?+
X Fold 3 Pro has 5.6% more battery — 5700 mAh vs 5400 mAh.
Which is lighter, X Fold 3 Pro or Xiaomi 15?+
Xiaomi 15 is 44g lighter — 236g vs 192g.
Is X Fold 3 Pro waterproof?+
X Fold 3 Pro has an IPX8 rating.
Does Xiaomi 15 support 5G?+
Yes, Xiaomi 15 supports 5G.
Which has more RAM, X Fold 3 Pro or Xiaomi 15?+
X Fold 3 Pro offers 16GB of RAM.
Which has a better camera, X Fold 3 Pro or Xiaomi 15?+
Xiaomi 15 has a 50 MP main camera vs 50 MP.
Spec-level deep dives
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