Between the ROG Phone 9 Pro and V40 Pro, the ROG Phone 9 Pro comes out ahead in ram and antutu, while the V40 Pro wins on front camera and weight. Overall, the ROG Phone 9 Pro scores 77.7 and the V40 Pro scores 67.6 on our Mars Score.
Which should you buy?
The ROG Phone 9 Pro is the clear pick on raw spec strength, leading by 10.1 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 ROG Phone 9 Pro 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, antutu, refresh rate, among others.
Pick the V40 Pro if you photograph or shoot video regularly and want the better imaging pipeline of the two. Its strongest claims are front camera, weight, wired charging, among others.
Both ship with comparable main camera, screen size, 5g support, so those specs don't separate the two — focus on the differences below.
Bottom line: the ROG Phone 9 Pro is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why ASUS - ROG Phone 9 Pro wins
- ▲RAM — 100.00% more. 24 GB vs 12 GB.
- ▲AnTuTu — 79.87% more. 2680000 vs 1490000.
- ▲Refresh rate — 54.17% more. 185 Hz vs 120 Hz.
- ▲Battery capacity — 5.45% more. 5800 mAh vs 5500 mAh.
- ▲Has Headphone jack.
- ▲Wireless charging: 15 W vs 0 W.
Why Vivo - V40 Pro wins
- ▲Front camera — 56.25% more. 50 MP vs 32 MP.
- ▲Weight — 35.00 g less. 192 vs 227.
- ▲Wired charging — 23.08% more. 80 W vs 65 W.
- ▲Pixel density — 16.49% more. 452 ppi vs 388 ppi.
Spec comparison
Design
| Spec | ASUS - ROG Phone 9 Pro | Vivo - V40 Pro |
|---|---|---|
| Weight | 227 g | 192 glead |
| Thickness | 8.9 mm | 7.6 mmlead |
| Water resistanceⓘ | IP68 | IP68 |
| Form factor | bar | bar |
Display
| Spec | ASUS - ROG Phone 9 Pro | Vivo - V40 Pro |
|---|---|---|
| Screen sizeⓘ | 6.78 " | 6.78 " |
| Pixel densityⓘ | 388 ppi | 452 ppilead |
| Refresh rateⓘ | 185 Hzlead | 120 Hz |
| Peak brightnessⓘ | 2500 nits | 4500 nitslead |
Performance
Cameras
| Spec | ASUS - ROG Phone 9 Pro | Vivo - V40 Pro |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MP | 50 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | ASUS - ROG Phone 9 Pro | Vivo - V40 Pro |
|---|---|---|
| Battery capacity | 5800 mAhlead | 5500 mAh |
| Wired chargingⓘ | 65 W | 80 Wlead |
| Wireless chargingⓘ | 15 Wlead | 0 W |
Connectivity
| Spec | ASUS - ROG Phone 9 Pro | Vivo - V40 Pro |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | truelead | false |
| microSD slot | false | false |
Operating System
| Spec | ASUS - ROG Phone 9 Pro | Vivo - V40 Pro |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 3 years | 3 years |
Frequently asked
Which has better battery, ROG Phone 9 Pro or V40 Pro?+
ROG Phone 9 Pro has 5.5% more battery — 5800 mAh vs 5500 mAh.
Which is lighter, ROG Phone 9 Pro or V40 Pro?+
V40 Pro is 35g lighter — 227g vs 192g.
Is ROG Phone 9 Pro waterproof?+
ROG Phone 9 Pro has an IP68 rating.
Does V40 Pro support 5G?+
Yes, V40 Pro supports 5G.
Which has more RAM, ROG Phone 9 Pro or V40 Pro?+
ROG Phone 9 Pro offers 24GB of RAM.
Which has a better camera, ROG Phone 9 Pro or V40 Pro?+
V40 Pro has a 50 MP main camera vs 50 MP.
Spec-level deep dives
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