Between the Galaxy Z Fold 7 and ROG Phone 9, the Galaxy Z Fold 7 comes out ahead in screen size and weight, while the ROG Phone 9 wins on front camera and wired charging. Overall, the Galaxy Z Fold 7 scores 69.5 and the ROG Phone 9 scores 75.1 on our Mars Score.
Which should you buy?
The ROG Phone 9 edges ahead on the Mars Score (69.5 vs 75.1), but the 5.6-point gap is small enough that the right pick comes down to which spec advantages matter to you.
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 screen size, weight, promised os updates.
Pick the ROG Phone 9 if you photograph or shoot video regularly and want the better imaging pipeline of the two. Its strongest claims are front camera, wired charging, refresh rate, among others.
Both ship with comparable ram, main camera, 5g support, so those specs don't separate the two — focus on the differences below.
Bottom line: the ROG Phone 9 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Samsung - Galaxy Z Fold 7 wins
- ▲Screen size — 12.09% more. 7.6 " vs 6.78 ".
- ▲Weight — 12.00 g less. 215 vs 227.
- ▲Promised OS updates: 7 (vs 3).
Why ASUS - ROG Phone 9 wins
- ▲Front camera — 220.00% more. 32 MP vs 10 MP.
- ▲Wired charging — 160.00% more. 65 W vs 25 W.
- ▲Refresh rate — 54.17% more. 185 Hz vs 120 Hz.
- ▲Battery capacity — 31.82% more. 5800 mAh vs 4400 mAh.
- ▲AnTuTu — 25.85% more. 2580000 vs 2050000.
- ▲Pixel density — 3.74% more. 388 ppi vs 374 ppi.
- ▲Has Headphone jack.
Spec comparison
Design
| Spec | Samsung - Galaxy Z Fold 7 | ASUS - ROG Phone 9 |
|---|---|---|
| Weight | 215 glead | 227 g |
| Thickness | 10.6 mm | 8.9 mmlead |
| Water resistanceⓘ | IP68 | IP68 |
| Form factor | foldable_booklead | bar |
Display
| Spec | Samsung - Galaxy Z Fold 7 | ASUS - ROG Phone 9 |
|---|---|---|
| Screen sizeⓘ | 7.6 "lead | 6.78 " |
| Pixel densityⓘ | 374 ppi | 388 ppilead |
| Refresh rateⓘ | 120 Hz | 185 Hzlead |
| Peak brightnessⓘ | 2600 nitslead | 2500 nits |
Performance
Cameras
| Spec | Samsung - Galaxy Z Fold 7 | ASUS - ROG Phone 9 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 10 MP | 32 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Samsung - Galaxy Z Fold 7 | ASUS - ROG Phone 9 |
|---|---|---|
| Battery capacity | 4400 mAh | 5800 mAhlead |
| Wired chargingⓘ | 25 W | 65 Wlead |
| Wireless chargingⓘ | 15 W | 15 W |
Connectivity
| Spec | Samsung - Galaxy Z Fold 7 | ASUS - ROG Phone 9 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | truelead |
| microSD slot | false | false |
Operating System
| Spec | Samsung - Galaxy Z Fold 7 | ASUS - ROG Phone 9 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 7 yearslead | 3 years |
Frequently asked
Which has better battery, Galaxy Z Fold 7 or ROG Phone 9?+
ROG Phone 9 has 31.8% more battery — 4400 mAh vs 5800 mAh.
Which is lighter, Galaxy Z Fold 7 or ROG Phone 9?+
Galaxy Z Fold 7 is 12g lighter — 215g vs 227g.
Is Galaxy Z Fold 7 waterproof?+
Galaxy Z Fold 7 has an IP68 rating.
Does ROG Phone 9 support 5G?+
Yes, ROG Phone 9 supports 5G.
Which has a better camera, Galaxy Z Fold 7 or ROG Phone 9?+
ROG Phone 9 has a 50 MP main camera vs 50 MP.
Spec-level deep dives
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