Between the OnePlus Open 2 and V40 Pro, the OnePlus Open 2 comes out ahead in antutu and ram, while the V40 Pro wins on front camera and weight. Overall, the OnePlus Open 2 scores 74.5 and the V40 Pro scores 67.6 on our Mars Score.
Which should you buy?
The OnePlus Open 2 edges ahead on the Mars Score (74.5 vs 67.6), but the 6.9-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the OnePlus Open 2 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 antutu, ram, screen size, 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, pixel density.
Both ship with comparable main camera, refresh rate, 5g support, so those specs don't separate the two — focus on the differences below.
Bottom line: the OnePlus Open 2 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why OnePlus Open 2 wins
- ▲AnTuTu — 79.87% more. 2680000 vs 1490000.
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲Screen size — 17.99% more. 8.0 " vs 6.78 ".
- ▲Battery capacity — 3.64% more. 5700 mAh vs 5500 mAh.
- ▲Promised OS updates: 4 (vs 3).
- ▲Wireless charging: 50 W vs 0 W.
Why Vivo - V40 Pro wins
- ▲Front camera — 56.25% more. 50 MP vs 32 MP.
- ▲Weight — 47.00 g less. 192 vs 239.
- ▲Pixel density — 12.44% more. 452 ppi vs 402 ppi.
Spec comparison
Design
| Spec | OnePlus Open 2 | Vivo - V40 Pro |
|---|---|---|
| Weight | 239 g | 192 glead |
| Thickness | 11.7 mm | 7.6 mmlead |
| Water resistanceⓘ | IP68 | IP68 |
| Form factor | foldable_booklead | bar |
Display
| Spec | OnePlus Open 2 | Vivo - V40 Pro |
|---|---|---|
| Screen sizeⓘ | 8.0 "lead | 6.78 " |
| Pixel densityⓘ | 402 ppi | 452 ppilead |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 4500 nits | 4500 nits |
Performance
Cameras
| Spec | OnePlus Open 2 | Vivo - V40 Pro |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MP | 50 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | OnePlus Open 2 | Vivo - V40 Pro |
|---|---|---|
| Battery capacity | 5700 mAhlead | 5500 mAh |
| Wired chargingⓘ | 80 W | 80 W |
| Wireless chargingⓘ | 50 Wlead | 0 W |
Connectivity
| Spec | OnePlus Open 2 | Vivo - V40 Pro |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | OnePlus Open 2 | Vivo - V40 Pro |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 4 yearslead | 3 years |
Frequently asked
Which has better battery, OnePlus Open 2 or V40 Pro?+
OnePlus Open 2 has 3.6% more battery — 5700 mAh vs 5500 mAh.
Which is lighter, OnePlus Open 2 or V40 Pro?+
V40 Pro is 47g lighter — 239g vs 192g.
Is OnePlus Open 2 waterproof?+
OnePlus Open 2 has an IP68 rating.
Does V40 Pro support 5G?+
Yes, V40 Pro supports 5G.
Which has more RAM, OnePlus Open 2 or V40 Pro?+
OnePlus Open 2 offers 16GB of RAM.
Which has a better camera, OnePlus Open 2 or V40 Pro?+
V40 Pro has a 50 MP main camera vs 50 MP.
Spec-level deep dives
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