Between the OnePlus 13 and ROG Phone 9, the OnePlus 13 comes out ahead in wireless charging and wired charging, while the ROG Phone 9 wins on refresh rate and headphone jack. Overall, the OnePlus 13 scores 73.8 and the ROG Phone 9 scores 75.1 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (73.8 vs 75.1). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.
Pick the OnePlus 13 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 wireless charging, wired charging, pixel density, among others.
Pick the ROG Phone 9 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 refresh rate, headphone jack.
Both ship with comparable ram, main camera, 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 OnePlus 13 wins
- ▲Wireless charging — 233.33% more. 50 W vs 15 W.
- ▲Wired charging — 53.85% more. 100 W vs 65 W.
- ▲Pixel density — 31.44% more. 510 ppi vs 388 ppi.
- ▲Weight — 17.00 g less. 210 vs 227.
- ▲Battery capacity — 3.45% more. 6000 mAh vs 5800 mAh.
- ▲AnTuTu — 2.33% more. 2640000 vs 2580000.
- ▲Screen size — 0.59% more. 6.82 " vs 6.78 ".
- ▲Water resistance: IP69 (vs IP68).
Why ASUS - ROG Phone 9 wins
- ▲Refresh rate — 54.17% more. 185 Hz vs 120 Hz.
- ▲Has Headphone jack.
Spec comparison
Design
| Spec | OnePlus 13 | ASUS - ROG Phone 9 |
|---|---|---|
| Weight | 210 glead | 227 g |
| Thickness | 8.5 mmlead | 8.9 mm |
| Water resistanceⓘ | IP69lead | IP68 |
| Form factor | bar | bar |
Display
| Spec | OnePlus 13 | ASUS - ROG Phone 9 |
|---|---|---|
| Screen sizeⓘ | 6.82 "lead | 6.78 " |
| Pixel densityⓘ | 510 ppilead | 388 ppi |
| Refresh rateⓘ | 120 Hz | 185 Hzlead |
| Peak brightnessⓘ | 4500 nitslead | 2500 nits |
Performance
Cameras
| Spec | OnePlus 13 | ASUS - ROG Phone 9 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MP | 32 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | OnePlus 13 | ASUS - ROG Phone 9 |
|---|---|---|
| Battery capacity | 6000 mAhlead | 5800 mAh |
| Wired chargingⓘ | 100 Wlead | 65 W |
| Wireless chargingⓘ | 50 Wlead | 15 W |
Connectivity
| Spec | OnePlus 13 | ASUS - ROG Phone 9 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | truelead |
| microSD slot | false | false |
Operating System
| Spec | OnePlus 13 | ASUS - ROG Phone 9 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 4 yearslead | 3 years |
Frequently asked
Which has better battery, OnePlus 13 or ROG Phone 9?+
OnePlus 13 has 3.4% more battery — 6000 mAh vs 5800 mAh.
Which is lighter, OnePlus 13 or ROG Phone 9?+
OnePlus 13 is 17g lighter — 210g vs 227g.
Is OnePlus 13 waterproof?+
OnePlus 13 has an IP69 rating.
Does ROG Phone 9 support 5G?+
Yes, ROG Phone 9 supports 5G.
Which has a better camera, OnePlus 13 or ROG Phone 9?+
ROG Phone 9 has a 50 MP main camera vs 50 MP.
Spec-level deep dives
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