Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | OnePlus 12 | Vivo - V40 Pro |
|---|---|---|
| Front camera | 32 MP | 50 MP |
| AnTuTu | 2060000 | 1490000 |
| Weight | 220 g | 192 g |
| Wired charging | 100 W | 80 W |
| Pixel density | 510 ppi | 452 ppi |
| Battery capacity | 5400 mAh | 5500 mAh |
Between the OnePlus 12 and V40 Pro, the OnePlus 12 comes out ahead in antutu / wired charging, while the V40 Pro wins on front camera / weight. Overall, the OnePlus 12 scores 68.2 and the V40 Pro scores 67.2 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (68.2 vs 67.2). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the OnePlus 12 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, wired charging, pixel density, among others. The single most decisive one: AnTuTu — 38.26% more. 2060000 vs 1490000.
Pick the V40 Pro if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. Its strongest claims are front camera, weight, battery capacity, among others. The single most decisive one: Front camera — 56.25% more. 50 MP vs 32 MP.
Both ship with comparable ram, main camera, refresh rate, so those specs do not 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 says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: OnePlus 12 or Vivo - V40 Pro?
OnePlus 12 leads the current Mars Score by 1.0 points.The more useful decision is the trade-off behind that result: compare screen size, pixel density, battery capacity against the way you will actually use the product.
Choose OnePlus 12 if…
OnePlus 12 has the measurable edge on antutu score, wired charging w, pixel density ppi.
Choose Vivo - V40 Pro if…
Vivo - V40 Pro has the measurable edge on front cam mp, weight g, battery capacity mah.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why OnePlus 12 wins
- ▲AnTuTu — 38.26% more. 2060000 vs 1490000.
- ▲Wired charging — 25.00% more. 100 W vs 80 W.
- ▲Pixel density — 12.83% more. 510 ppi vs 452 ppi.
- ▲Screen size — 0.59% more. 6.82 " vs 6.78 ".
- ▲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 — 28.00 g less. 192 vs 220.
- ▲Battery capacity — 1.85% more. 5500 mAh vs 5400 mAh.
- ▲Water resistance: IP68 (vs IP65).
Spec comparison
Design
| Spec | OnePlus 12 | Vivo - V40 Pro |
|---|---|---|
| Weight | 220 g | 192 glead |
| Thickness | 9.15 mm | 7.6 mmlead |
| Water resistanceⓘ | IP65 | IP68lead |
| Form factor | bar | bar |
Display
| Spec | OnePlus 12 | Vivo - V40 Pro |
|---|---|---|
| Screen size | 6.82 "lead | 6.78 " |
| Pixel densityⓘ | 510 ppilead | 452 ppi |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 4500 nits | 4500 nits |
Performance
| Spec | OnePlus 12 | Vivo - V40 Pro |
|---|---|---|
| RAMⓘ | 12 GB | 12 GB |
| Storageⓘ | 256 GB | 256 GB |
| AnTuTuⓘ | 2060000lead | 1490000 |
| CPU total clockⓘ | 21.0 GHzlead | 16.0 GHz |
Cameras
| Spec | OnePlus 12 | Vivo - V40 Pro |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MP | 50 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | OnePlus 12 | Vivo - V40 Pro |
|---|---|---|
| Battery capacityⓘ | 5400 mAh | 5500 mAhlead |
| Wired chargingⓘ | 100 Wlead | 80 W |
| Wireless chargingⓘ | 50 Wlead | 0 W |
Connectivity
| Spec | OnePlus 12 | Vivo - V40 Pro |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | OnePlus 12 | Vivo - V40 Pro |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 4 yearslead | 3 years |
Frequently asked
Which has better battery, OnePlus 12 or V40 Pro?+
V40 Pro has 1.9% more battery — 5400 mAh vs 5500 mAh.
Which is lighter, OnePlus 12 or V40 Pro?+
V40 Pro is 28g lighter — 220g vs 192g.
Is OnePlus 12 waterproof?+
OnePlus 12 has an IP65 rating.
Does V40 Pro support 5G?+
Yes, V40 Pro supports 5G.
Which has a better camera, OnePlus 12 or V40 Pro?+
V40 Pro has a 50 MP main camera vs 50 MP.