Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Apple - iPhone Duo | OnePlus 15 |
|---|---|---|
| Front camera | 12 MP | 32 MP |
| Wired charging | 60 W | 120 W |
| Wireless charging | 25 W | 50 W |
| Battery capacity | 4883 mAh | 7500 mAh |
| Weight | 254 g | 211 g |
| RAM | 12 GB | 16 GB |
Between the iPhone Duo and OnePlus 15, the iPhone Duo comes out ahead in antutu / screen size, while the OnePlus 15 wins on front camera / wired charging. Overall, the iPhone Duo scores 69.8 and the OnePlus 15 scores 76.7 on our Mars Score.
Which should you buy?
The OnePlus 15 edges ahead on the Mars Score (69.8 vs 76.7), but the 6.9-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the iPhone Duo 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, screen size, promised os updates. The single most decisive one: AnTuTu — 20.34% more. 3550000 vs 2950000.
Pick the OnePlus 15 if you photograph or shoot video regularly and want the better imaging pipeline of the two. Its strongest claims are front camera, wired charging, wireless charging, among others. The single most decisive one: Front camera — 166.67% more. 32 MP vs 12 MP.
Both ship with comparable refresh rate, 5g support, optical image stabilization, 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: Apple - iPhone Duo or OnePlus 15?
OnePlus 15 leads the current Mars Score by 6.9 points.The more useful decision is the trade-off behind that result: compare screen size, ram, pixel density, battery capacity against the way you will actually use the product.
Choose Apple - iPhone Duo if…
Apple - iPhone Duo has the measurable edge on antutu score, screen size in, promised os years.
Choose OnePlus 15 if…
OnePlus 15 has the measurable edge on front cam mp, wired charging w, wireless charging w.
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 Apple - iPhone Duo wins
- ▲AnTuTu — 20.34% more. 3550000 vs 2950000.
- ▲Screen size — 12.09% more. 7.6 " vs 6.78 ".
- ▲Promised OS updates: 6 (vs 5).
Why OnePlus 15 wins
- ▲Front camera — 166.67% more. 32 MP vs 12 MP.
- ▲Wired charging — 100.00% more. 120 W vs 60 W.
- ▲Wireless charging — 100.00% more. 50 W vs 25 W.
- ▲Battery capacity — 53.59% more. 7500 mAh vs 4883 mAh.
- ▲Weight — 43.00 g less. 211 vs 254.
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲Pixel density — 4.65% more. 450 ppi vs 430 ppi.
- ▲Main camera — 4.17% more. 50 MP vs 48 MP.
Spec comparison
Design
| Spec | Apple - iPhone Duo | OnePlus 15 |
|---|---|---|
| Weight | 254 g | 211 glead |
| Thickness | 11.3 mm | 8.3 mmlead |
| Water resistanceⓘ | IP68 | IP69lead |
| Form factor | foldable_booklead | bar |
Display
| Spec | Apple - iPhone Duo | OnePlus 15 |
|---|---|---|
| Screen size | 7.6 "lead | 6.78 " |
| Pixel densityⓘ | 430 ppi | 450 ppilead |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 3000 nits | 4500 nitslead |
Performance
| Spec | Apple - iPhone Duo | OnePlus 15 |
|---|---|---|
| RAMⓘ | 12 GB | 16 GBlead |
| Storageⓘ | 256 GB | 512 GBlead |
| AnTuTuⓘ | 3550000lead | 2950000 |
| CPU total clockⓘ | 20.3 GHz | 23.6 GHzlead |
Cameras
| Spec | Apple - iPhone Duo | OnePlus 15 |
|---|---|---|
| Main cameraⓘ | 48 MP | 50 MPlead |
| Front camera | 12 MP | 32 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Apple - iPhone Duo | OnePlus 15 |
|---|---|---|
| Battery capacityⓘ | 4883 mAh | 7500 mAhlead |
| Wired chargingⓘ | 60 W | 120 Wlead |
| Wireless chargingⓘ | 25 W | 50 Wlead |
Connectivity
| Spec | Apple - iPhone Duo | OnePlus 15 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Apple - iPhone Duo | OnePlus 15 |
|---|---|---|
| OS | iOSlead | Android |
| Promised OS updates | 6 yearslead | 5 years |
Frequently asked
Which has better battery, iPhone Duo or OnePlus 15?+
OnePlus 15 has 53.6% more battery — 4883 mAh vs 7500 mAh.
Which is lighter, iPhone Duo or OnePlus 15?+
OnePlus 15 is 43g lighter — 254g vs 211g.
Is iPhone Duo waterproof?+
iPhone Duo has an IP68 rating.
Does OnePlus 15 support 5G?+
Yes, OnePlus 15 supports 5G.
Which has more RAM, iPhone Duo or OnePlus 15?+
OnePlus 15 offers 16GB of RAM.
Which has a better camera, iPhone Duo or OnePlus 15?+
OnePlus 15 has a 50 MP main camera vs 48 MP.