Between the OnePlus 15 and V40 Pro, the OnePlus 15 comes out ahead in antutu and wired charging, while the V40 Pro wins on front camera and weight. Overall, the OnePlus 15 scores 78.4 and the V40 Pro scores 67.6 on our Mars Score.
Which should you buy?
The OnePlus 15 is the clear pick on raw spec strength, leading by 10.8 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 OnePlus 15 if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. The biggest gaps in its favor are antutu, wired charging, battery capacity, 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, screen size, refresh rate, so those specs don't separate the two — focus on the differences below.
Bottom line: the OnePlus 15 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why OnePlus 15 wins
- ▲AnTuTu — 97.99% more. 2950000 vs 1490000.
- ▲Wired charging — 50.00% more. 120 W vs 80 W.
- ▲Battery capacity — 36.36% more. 7500 mAh vs 5500 mAh.
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲Water resistance: IP69 (vs IP68).
- ▲Promised OS updates: 5 (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 — 19.00 g less. 192 vs 211.
- ▲Pixel density — 0.44% more. 452 ppi vs 450 ppi.
Spec comparison
Design
| Spec | OnePlus 15 | Vivo - V40 Pro |
|---|---|---|
| Weight | 211 g | 192 glead |
| Thickness | 8.3 mm | 7.6 mmlead |
| Water resistanceⓘ | IP69lead | IP68 |
| Form factor | bar | bar |
Display
| Spec | OnePlus 15 | Vivo - V40 Pro |
|---|---|---|
| Screen sizeⓘ | 6.78 " | 6.78 " |
| Pixel densityⓘ | 450 ppi | 452 ppilead |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 4500 nits | 4500 nits |
Performance
Cameras
| Spec | OnePlus 15 | Vivo - V40 Pro |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MP | 50 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | OnePlus 15 | Vivo - V40 Pro |
|---|---|---|
| Battery capacity | 7500 mAhlead | 5500 mAh |
| Wired chargingⓘ | 120 Wlead | 80 W |
| Wireless chargingⓘ | 50 Wlead | 0 W |
Connectivity
| Spec | OnePlus 15 | Vivo - V40 Pro |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | OnePlus 15 | Vivo - V40 Pro |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 5 yearslead | 3 years |
Frequently asked
Which has better battery, OnePlus 15 or V40 Pro?+
OnePlus 15 has 36.4% more battery — 7500 mAh vs 5500 mAh.
Which is lighter, OnePlus 15 or V40 Pro?+
V40 Pro is 19g lighter — 211g vs 192g.
Is OnePlus 15 waterproof?+
OnePlus 15 has an IP69 rating.
Does V40 Pro support 5G?+
Yes, V40 Pro supports 5G.
Which has more RAM, OnePlus 15 or V40 Pro?+
OnePlus 15 offers 16GB of RAM.
Which has a better camera, OnePlus 15 or V40 Pro?+
V40 Pro has a 50 MP main camera vs 50 MP.
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.