Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | OnePlus 15 | Vivo - X Fold 3 Pro |
|---|---|---|
| AnTuTu | 2950000 | 2070000 |
| Battery capacity | 7500 mAh | 5700 mAh |
| Weight | 211 g | 236 g |
| Wired charging | 120 W | 100 W |
| Screen size | 6.78 " | 8.03 " |
| Pixel density | 450 ppi | 402 ppi |
Between the OnePlus 15 and X Fold 3 Pro, the OnePlus 15 comes out ahead in antutu / battery capacity, while the X Fold 3 Pro wins on screen size / water resistance. Overall, the OnePlus 15 scores 76.7 and the X Fold 3 Pro scores 70.7 on our Mars Score.
Which should you buy?
The OnePlus 15 edges ahead on the Mars Score (76.7 vs 70.7), but the 6.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.
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, battery capacity, weight, among others. The single most decisive one: AnTuTu — 42.51% more. 2950000 vs 2070000.
Pick the X Fold 3 Pro if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. Its strongest claims are screen size, water resistance. The single most decisive one: Screen size — 18.44% more. 8.03 " vs 6.78 ".
Both ship with comparable ram, main camera, refresh rate, so those specs do not 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.
Which should you buy: OnePlus 15 or Vivo - X Fold 3 Pro?
OnePlus 15 leads the current Mars Score by 6.0 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 15 if…
OnePlus 15 has the measurable edge on antutu score, battery capacity mah, weight g.
Choose Vivo - X Fold 3 Pro if…
Vivo - X Fold 3 Pro has the measurable edge on screen size in, ip rating.
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 15 wins
- ▲AnTuTu — 42.51% more. 2950000 vs 2070000.
- ▲Battery capacity — 31.58% more. 7500 mAh vs 5700 mAh.
- ▲Weight — 25.00 g less. 211 vs 236.
- ▲Wired charging — 20.00% more. 120 W vs 100 W.
- ▲Pixel density — 11.94% more. 450 ppi vs 402 ppi.
- ▲Promised OS updates: 5 (vs 4).
Why Vivo - X Fold 3 Pro wins
- ▲Screen size — 18.44% more. 8.03 " vs 6.78 ".
- ▲Water resistance: IPX8 (vs IP69).
Spec comparison
Design
| Spec | OnePlus 15 | Vivo - X Fold 3 Pro |
|---|---|---|
| Weight | 211 glead | 236 g |
| Thickness | 8.3 mmlead | 11.2 mm |
| Water resistanceⓘ | IP69 | IPX8lead |
| Form factor | bar | foldable_booklead |
Display
| Spec | OnePlus 15 | Vivo - X Fold 3 Pro |
|---|---|---|
| Screen size | 6.78 " | 8.03 "lead |
| Pixel densityⓘ | 450 ppilead | 402 ppi |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 4500 nits | 4500 nits |
Performance
| Spec | OnePlus 15 | Vivo - X Fold 3 Pro |
|---|---|---|
| RAMⓘ | 16 GB | 16 GB |
| Storageⓘ | 512 GB | 512 GB |
| AnTuTuⓘ | 2950000lead | 2070000 |
| CPU total clockⓘ | 23.6 GHzlead | 21.4 GHz |
Cameras
| Spec | OnePlus 15 | Vivo - X Fold 3 Pro |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MP | 32 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | OnePlus 15 | Vivo - X Fold 3 Pro |
|---|---|---|
| Battery capacityⓘ | 7500 mAhlead | 5700 mAh |
| Wired chargingⓘ | 120 Wlead | 100 W |
| Wireless chargingⓘ | 50 W | 50 W |
Connectivity
| Spec | OnePlus 15 | Vivo - X Fold 3 Pro |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | OnePlus 15 | Vivo - X Fold 3 Pro |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 5 yearslead | 4 years |
Frequently asked
Which has better battery, OnePlus 15 or X Fold 3 Pro?+
OnePlus 15 has 31.6% more battery — 7500 mAh vs 5700 mAh.
Which is lighter, OnePlus 15 or X Fold 3 Pro?+
OnePlus 15 is 25g lighter — 211g vs 236g.
Is OnePlus 15 waterproof?+
OnePlus 15 has an IP69 rating.
Does X Fold 3 Pro support 5G?+
Yes, X Fold 3 Pro supports 5G.
Which has a better camera, OnePlus 15 or X Fold 3 Pro?+
X Fold 3 Pro has a 50 MP main camera vs 50 MP.