Between the Pixel 9a and ROG Phone 9, the Pixel 9a comes out ahead in weight and pixel density, while the ROG Phone 9 wins on wired charging and front camera. Overall, the Pixel 9a scores 63.2 and the ROG Phone 9 scores 75.1 on our Mars Score.
Which should you buy?
The ROG Phone 9 is the clear pick on raw spec strength, leading by 11.9 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Pixel 9a 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 weight, pixel density, 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 wired charging, front camera, antutu, among others.
Both ship with comparable 5g support, water resistance, optical image stabilization, 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 Google - Pixel 9a wins
- ▲Weight — 41.00 g less. 186 vs 227.
- ▲Pixel density — 8.76% more. 422 ppi vs 388 ppi.
- ▲Promised OS updates: 7 (vs 3).
Why ASUS - ROG Phone 9 wins
- ▲Wired charging — 182.61% more. 65 W vs 23 W.
- ▲Front camera — 146.15% more. 32 MP vs 13 MP.
- ▲AnTuTu — 108.06% more. 2580000 vs 1240000.
- ▲RAM — 100.00% more. 16 GB vs 8 GB.
- ▲Wireless charging — 100.00% more. 15 W vs 7.5 W.
- ▲Refresh rate — 54.17% more. 185 Hz vs 120 Hz.
- ▲Battery capacity — 13.73% more. 5800 mAh vs 5100 mAh.
- ▲Screen size — 7.62% more. 6.78 " vs 6.3 ".
Spec comparison
Design
| Spec | Google - Pixel 9a | ASUS - ROG Phone 9 |
|---|---|---|
| Weight | 186 glead | 227 g |
| Thickness | 8.9 mm | 8.9 mm |
| Water resistanceⓘ | IP68 | IP68 |
| Form factor | bar | bar |
Display
| Spec | Google - Pixel 9a | ASUS - ROG Phone 9 |
|---|---|---|
| Screen sizeⓘ | 6.3 " | 6.78 "lead |
| Pixel densityⓘ | 422 ppilead | 388 ppi |
| Refresh rateⓘ | 120 Hz | 185 Hzlead |
| Peak brightnessⓘ | 2700 nitslead | 2500 nits |
Performance
Cameras
| Spec | Google - Pixel 9a | ASUS - ROG Phone 9 |
|---|---|---|
| Main cameraⓘ | 48 MP | 50 MPlead |
| Front camera | 13 MP | 32 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Google - Pixel 9a | ASUS - ROG Phone 9 |
|---|---|---|
| Battery capacity | 5100 mAh | 5800 mAhlead |
| Wired chargingⓘ | 23 W | 65 Wlead |
| Wireless chargingⓘ | 7.5 W | 15 Wlead |
Connectivity
| Spec | Google - Pixel 9a | ASUS - ROG Phone 9 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | truelead |
| microSD slot | false | false |
Operating System
| Spec | Google - Pixel 9a | ASUS - ROG Phone 9 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 7 yearslead | 3 years |
Frequently asked
Which has better battery, Pixel 9a or ROG Phone 9?+
ROG Phone 9 has 13.7% more battery — 5100 mAh vs 5800 mAh.
Which is lighter, Pixel 9a or ROG Phone 9?+
Pixel 9a is 41g lighter — 186g vs 227g.
Is Pixel 9a waterproof?+
Pixel 9a has an IP68 rating.
Does ROG Phone 9 support 5G?+
Yes, ROG Phone 9 supports 5G.
Which has more RAM, Pixel 9a or ROG Phone 9?+
ROG Phone 9 offers 16GB of RAM.
Which has a better camera, Pixel 9a or ROG Phone 9?+
ROG Phone 9 has a 50 MP main camera vs 48 MP.
Spec-level deep dives
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