Between the OnePlus 12 and OnePlus 15, the OnePlus 12 comes out ahead in pixel density and screen size, while the OnePlus 15 wins on antutu and battery capacity. Overall, the OnePlus 12 scores 69.6 and the OnePlus 15 scores 78.4 on our Mars Score.
Which should you buy?
The OnePlus 15 is the clear pick on raw spec strength, leading by 8.8 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 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 pixel density, screen size.
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. Its strongest claims are antutu, battery capacity, ram, among others.
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 15 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why OnePlus 12 wins
- ▲Pixel density — 13.33% more. 510 ppi vs 450 ppi.
- ▲Screen size — 0.59% more. 6.82 " vs 6.78 ".
Why OnePlus 15 wins
- ▲AnTuTu — 43.20% more. 2950000 vs 2060000.
- ▲Battery capacity — 38.89% more. 7500 mAh vs 5400 mAh.
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲Wired charging — 20.00% more. 120 W vs 100 W.
- ▲Weight — 9.00 g less. 211 vs 220.
- ▲Water resistance: IP69 (vs IP65).
- ▲Promised OS updates: 5 (vs 4).
Spec comparison
Design
| Spec | OnePlus 12 | OnePlus 15 |
|---|---|---|
| Weight | 220 g | 211 glead |
| Thickness | 9.15 mm | 8.3 mmlead |
| Water resistanceⓘ | IP65 | IP69lead |
| Form factor | bar | bar |
Display
| Spec | OnePlus 12 | OnePlus 15 |
|---|---|---|
| Screen sizeⓘ | 6.82 "lead | 6.78 " |
| Pixel densityⓘ | 510 ppilead | 450 ppi |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 4500 nits | 4500 nits |
Performance
Cameras
| Spec | OnePlus 12 | OnePlus 15 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MP | 32 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | OnePlus 12 | OnePlus 15 |
|---|---|---|
| Battery capacity | 5400 mAh | 7500 mAhlead |
| Wired chargingⓘ | 100 W | 120 Wlead |
| Wireless chargingⓘ | 50 W | 50 W |
Connectivity
| Spec | OnePlus 12 | OnePlus 15 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | OnePlus 12 | OnePlus 15 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 4 years | 5 yearslead |
Frequently asked
Which has better battery, OnePlus 12 or OnePlus 15?+
OnePlus 15 has 38.9% more battery — 5400 mAh vs 7500 mAh.
Which is lighter, OnePlus 12 or OnePlus 15?+
OnePlus 15 is 9g lighter — 220g vs 211g.
Is OnePlus 12 waterproof?+
OnePlus 12 has an IP65 rating.
Does OnePlus 15 support 5G?+
Yes, OnePlus 15 supports 5G.
Which has more RAM, OnePlus 12 or OnePlus 15?+
OnePlus 15 offers 16GB of RAM.
Which has a better camera, OnePlus 12 or OnePlus 15?+
OnePlus 15 has a 50 MP main camera vs 50 MP.
Spec-level deep dives
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