Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Samsung - Galaxy Z Fold 7 | Xiaomi 15 |
|---|---|---|
| Wired charging | 25 W | 90 W |
| Wireless charging | 15 W | 50 W |
| Front camera | 10 MP | 32 MP |
| RAM | 16 GB | 12 GB |
| AnTuTu | 2050000 | 2680000 |
| Weight | 215 g | 192 g |
Between the Galaxy Z Fold 7 and Xiaomi 15, the Galaxy Z Fold 7 comes out ahead in ram / screen size, while the Xiaomi 15 wins on wired charging / wireless charging. Overall, the Galaxy Z Fold 7 scores 69.6 and the Xiaomi 15 scores 69.8 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (69.6 vs 69.8). The decision is not about overall quality — both clear the bar — it is 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. The single most decisive one: RAM — 33.33% more. 16 GB vs 12 GB.
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. The single most decisive one: Wired charging — 260.00% more. 90 W vs 25 W.
Both ship with comparable main camera, refresh rate, 5g support, so those specs do not 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 says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Samsung - Galaxy Z Fold 7 or Xiaomi 15?
Xiaomi 15 leads the current Mars Score by 0.2 points.The more useful decision is the trade-off behind that result: compare screen size, ram, pixel density, battery capacity against the way you will actually use the product.
Choose Samsung - Galaxy Z Fold 7 if…
Samsung - Galaxy Z Fold 7 has the measurable edge on ram gb, screen size in, promised os years.
Choose Xiaomi 15 if…
Xiaomi 15 has the measurable edge on wired charging w, wireless charging w, front cam mp.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
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
| Spec | Samsung - Galaxy Z Fold 7 | Xiaomi 15 |
|---|---|---|
| RAMⓘ | 16 GBlead | 12 GB |
| Storageⓘ | 512 GBlead | 256 GB |
| AnTuTuⓘ | 2050000 | 2680000lead |
| CPU total clockⓘ | 21.4 GHz | 22.8 GHzlead |
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.