Between the Galaxy Z Fold 7 and Xiaomi 15, the Galaxy Z Fold 7 comes out ahead in ram and screen size, while the Xiaomi 15 wins on wired charging and wireless charging. Overall, the Galaxy Z Fold 7 scores 69.5 and the Xiaomi 15 scores 70 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (69.5 vs 70). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.
Pick the Galaxy Z Fold 7 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, 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 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 Samsung - Galaxy Z Fold 7 wins
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲Screen size — 19.50% more. 7.6 " vs 6.36 ".
- ▲Promised OS updates: 7 (vs 4).
Why Xiaomi 15 wins
- ▲Wired charging — 260.00% more. 90 W vs 25 W.
- ▲Wireless charging — 233.33% more. 50 W vs 15 W.
- ▲Front camera — 220.00% more. 32 MP vs 10 MP.
- ▲AnTuTu — 30.73% more. 2680000 vs 2050000.
- ▲Weight — 23.00 g less. 192 vs 215.
- ▲Pixel density — 22.99% more. 460 ppi vs 374 ppi.
- ▲Battery capacity — 22.73% more. 5400 mAh vs 4400 mAh.
Spec comparison
Design
| Spec | Samsung - Galaxy Z Fold 7 | Xiaomi 15 |
|---|---|---|
| Weight | 215 g | 192 glead |
| Thickness | 10.6 mm | 8.1 mmlead |
| Water resistanceⓘ | IP68 | IP68 |
| Form factor | foldable_booklead | bar |
Display
| Spec | Samsung - Galaxy Z Fold 7 | Xiaomi 15 |
|---|---|---|
| Screen sizeⓘ | 7.6 "lead | 6.36 " |
| Pixel densityⓘ | 374 ppi | 460 ppilead |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 2600 nits | 3200 nitslead |
Performance
Cameras
| Spec | Samsung - Galaxy Z Fold 7 | Xiaomi 15 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 10 MP | 32 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Samsung - Galaxy Z Fold 7 | Xiaomi 15 |
|---|---|---|
| Battery capacity | 4400 mAh | 5400 mAhlead |
| Wired chargingⓘ | 25 W | 90 Wlead |
| Wireless chargingⓘ | 15 W | 50 Wlead |
Connectivity
| Spec | Samsung - Galaxy Z Fold 7 | Xiaomi 15 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Samsung - Galaxy Z Fold 7 | Xiaomi 15 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 7 yearslead | 4 years |
Frequently asked
Which has better battery, Galaxy Z Fold 7 or Xiaomi 15?+
Xiaomi 15 has 22.7% more battery — 4400 mAh vs 5400 mAh.
Which is lighter, Galaxy Z Fold 7 or Xiaomi 15?+
Xiaomi 15 is 23g lighter — 215g vs 192g.
Is Galaxy Z Fold 7 waterproof?+
Galaxy Z Fold 7 has an IP68 rating.
Does Xiaomi 15 support 5G?+
Yes, Xiaomi 15 supports 5G.
Which has more RAM, Galaxy Z Fold 7 or Xiaomi 15?+
Galaxy Z Fold 7 offers 16GB of RAM.
Which has a better camera, Galaxy Z Fold 7 or Xiaomi 15?+
Xiaomi 15 has a 50 MP main camera vs 50 MP.
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.