Between the X Fold 3 Pro and MIX Fold 4, the X Fold 3 Pro comes out ahead in front camera and wired charging, while the MIX Fold 4 wins on weight. Overall, the X Fold 3 Pro scores 73.1 and the MIX Fold 4 scores 71.4 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (73.1 vs 71.4). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.
Pick the X Fold 3 Pro if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. The biggest gaps in its favor are front camera, wired charging, battery capacity, among others.
Pick the MIX Fold 4 if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight.
Both ship with comparable ram, main camera, refresh rate, 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
- ▲Front camera — 60.00% more. 32 MP vs 20 MP.
- ▲Wired charging — 49.25% more. 100 W vs 67 W.
- ▲Battery capacity — 11.76% more. 5700 mAh vs 5100 mAh.
- ▲AnTuTu — 1.47% more. 2070000 vs 2040000.
- ▲Screen size — 0.63% more. 8.03 " vs 7.98 ".
Why Xiaomi - MIX Fold 4 wins
- ▲Weight — 10.00 g less. 226 vs 236.
Spec comparison
Design
| Spec | Vivo - X Fold 3 Pro | Xiaomi - MIX Fold 4 |
|---|---|---|
| Weight | 236 g | 226 glead |
| Thickness | 11.2 mm | 9.47 mmlead |
| Water resistanceⓘ | IPX8 | IPX8 |
| Form factor | foldable_book | foldable_book |
Display
| Spec | Vivo - X Fold 3 Pro | Xiaomi - MIX Fold 4 |
|---|---|---|
| Screen sizeⓘ | 8.03 "lead | 7.98 " |
| Pixel densityⓘ | 402 ppi | 402 ppi |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 4500 nitslead | 3000 nits |
Performance
Cameras
| Spec | Vivo - X Fold 3 Pro | Xiaomi - MIX Fold 4 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MPlead | 20 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Vivo - X Fold 3 Pro | Xiaomi - MIX Fold 4 |
|---|---|---|
| Battery capacity | 5700 mAhlead | 5100 mAh |
| Wired chargingⓘ | 100 Wlead | 67 W |
| Wireless chargingⓘ | 50 W | 50 W |
Connectivity
| Spec | Vivo - X Fold 3 Pro | Xiaomi - MIX Fold 4 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Vivo - X Fold 3 Pro | Xiaomi - MIX Fold 4 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 4 years | 4 years |
Frequently asked
Which has better battery, X Fold 3 Pro or MIX Fold 4?+
X Fold 3 Pro has 11.8% more battery — 5700 mAh vs 5100 mAh.
Which is lighter, X Fold 3 Pro or MIX Fold 4?+
MIX Fold 4 is 10g lighter — 236g vs 226g.
Is X Fold 3 Pro waterproof?+
X Fold 3 Pro has an IPX8 rating.
Does MIX Fold 4 support 5G?+
Yes, MIX Fold 4 supports 5G.
Which has a better camera, X Fold 3 Pro or MIX Fold 4?+
MIX Fold 4 has a 50 MP main camera vs 50 MP.
Spec-level deep dives
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