Between the Galaxy S26 Ultra and OnePlus 12, the Galaxy S26 Ultra comes out ahead in main camera and ram, while the OnePlus 12 wins on wireless charging and front camera. Overall, the Galaxy S26 Ultra scores 75.6 and the OnePlus 12 scores 69.6 on our Mars Score.
Which should you buy?
The Galaxy S26 Ultra edges ahead on the Mars Score (75.6 vs 69.6), but the 6.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Galaxy S26 Ultra if you photograph or shoot video regularly and want the better imaging pipeline of the two. The biggest gaps in its favor are main camera, ram, antutu, among others.
Pick the OnePlus 12 if you photograph or shoot video regularly and want the better imaging pipeline of the two. Its strongest claims are wireless charging, front camera, wired charging, among others.
Both ship with comparable refresh rate, 5g support, optical image stabilization, so those specs don't separate the two — focus on the differences below.
Bottom line: the Galaxy S26 Ultra is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Samsung - Galaxy S26 Ultra wins
- ▲Main camera — 300.00% more. 200 MP vs 50 MP.
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲AnTuTu — 12.14% more. 2310000 vs 2060000.
- ▲Screen size — 1.17% more. 6.9 " vs 6.82 ".
- ▲Water resistance: IP68 (vs IP65).
- ▲Promised OS updates: 7 (vs 4).
Why OnePlus 12 wins
- ▲Wireless charging — 233.33% more. 50 W vs 15 W.
- ▲Front camera — 166.67% more. 32 MP vs 12 MP.
- ▲Wired charging — 53.85% more. 100 W vs 65 W.
- ▲Weight — 12.00 g less. 220 vs 232.
- ▲Battery capacity — 8.00% more. 5400 mAh vs 5000 mAh.
- ▲Pixel density — 1.80% more. 510 ppi vs 501 ppi.
Spec comparison
Design
| Spec | Samsung - Galaxy S26 Ultra | OnePlus 12 |
|---|---|---|
| Weight | 232 g | 220 glead |
| Thickness | 8.6 mmlead | 9.15 mm |
| Water resistanceⓘ | IP68lead | IP65 |
| Form factor | bar | bar |
Display
| Spec | Samsung - Galaxy S26 Ultra | OnePlus 12 |
|---|---|---|
| Screen sizeⓘ | 6.9 "lead | 6.82 " |
| Pixel densityⓘ | 501 ppi | 510 ppilead |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 2600 nits | 4500 nitslead |
Performance
Cameras
| Spec | Samsung - Galaxy S26 Ultra | OnePlus 12 |
|---|---|---|
| Main cameraⓘ | 200 MPlead | 50 MP |
| Front camera | 12 MP | 32 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Samsung - Galaxy S26 Ultra | OnePlus 12 |
|---|---|---|
| Battery capacity | 5000 mAh | 5400 mAhlead |
| Wired chargingⓘ | 65 W | 100 Wlead |
| Wireless chargingⓘ | 15 W | 50 Wlead |
Connectivity
| Spec | Samsung - Galaxy S26 Ultra | OnePlus 12 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Samsung - Galaxy S26 Ultra | OnePlus 12 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 7 yearslead | 4 years |
Frequently asked
Which has better battery, Galaxy S26 Ultra or OnePlus 12?+
OnePlus 12 has 8.0% more battery — 5000 mAh vs 5400 mAh.
Which is lighter, Galaxy S26 Ultra or OnePlus 12?+
OnePlus 12 is 12g lighter — 232g vs 220g.
Is Galaxy S26 Ultra waterproof?+
Galaxy S26 Ultra has an IP68 rating.
Does OnePlus 12 support 5G?+
Yes, OnePlus 12 supports 5G.
Which has more RAM, Galaxy S26 Ultra or OnePlus 12?+
Galaxy S26 Ultra offers 16GB of RAM.
Which has a better camera, Galaxy S26 Ultra or OnePlus 12?+
Galaxy S26 Ultra has a 200 MP main camera vs 50 MP.
Spec-level deep dives
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