Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Apple - iPhone 17 Pro Max | OnePlus 15 |
|---|---|---|
| Wired charging | 30 W | 120 W |
| Front camera | 12 MP | 32 MP |
| Wireless charging | 25 W | 50 W |
| Battery capacity | 4685 mAh | 7500 mAh |
| AnTuTu | 2100000 | 2950000 |
| RAM | 12 GB | 16 GB |
Between the iPhone 17 Pro Max and OnePlus 15, the iPhone 17 Pro Max comes out ahead in pixel density / screen size, while the OnePlus 15 wins on wired charging / front camera. Overall, the iPhone 17 Pro Max scores 66.9 and the OnePlus 15 scores 76.7 on our Mars Score.
Which should you buy?
The OnePlus 15 is the clear pick on raw spec strength, leading by 9.8 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 iPhone 17 Pro Max 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, promised os updates. The single most decisive one: Pixel density — 2.22% more. 460 ppi vs 450 ppi.
Pick the OnePlus 15 if you photograph or shoot video regularly and want the better imaging pipeline of the two. Its strongest claims are wired charging, front camera, wireless charging, among others. The single most decisive one: Wired charging — 300.00% more. 120 W vs 30 W.
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 17 Pro Max or OnePlus 15?
OnePlus 15 leads the current Mars Score by 9.8 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 17 Pro Max if…
Apple - iPhone 17 Pro Max has the measurable edge on pixel density ppi, screen size in, promised os years.
Choose OnePlus 15 if…
OnePlus 15 has the measurable edge on wired charging w, front cam mp, 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 17 Pro Max wins
- ▲Pixel density — 2.22% more. 460 ppi vs 450 ppi.
- ▲Screen size — 1.77% more. 6.9 " vs 6.78 ".
- ▲Promised OS updates: 6 (vs 5).
Why OnePlus 15 wins
- ▲Wired charging — 300.00% more. 120 W vs 30 W.
- ▲Front camera — 166.67% more. 32 MP vs 12 MP.
- ▲Wireless charging — 100.00% more. 50 W vs 25 W.
- ▲Battery capacity — 60.09% more. 7500 mAh vs 4685 mAh.
- ▲AnTuTu — 40.48% more. 2950000 vs 2100000.
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲Weight — 16.00 g less. 211 vs 227.
- ▲Main camera — 4.17% more. 50 MP vs 48 MP.
Spec comparison
Design
| Spec | Apple - iPhone 17 Pro Max | OnePlus 15 |
|---|---|---|
| Weight | 227 g | 211 glead |
| Thickness | 8.3 mm | 8.3 mm |
| Water resistanceⓘ | IP68 | IP69lead |
| Form factor | bar | bar |
Display
| Spec | Apple - iPhone 17 Pro Max | OnePlus 15 |
|---|---|---|
| Screen size | 6.9 "lead | 6.78 " |
| Pixel densityⓘ | 460 ppilead | 450 ppi |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 2200 nits | 4500 nitslead |
Performance
| Spec | Apple - iPhone 17 Pro Max | OnePlus 15 |
|---|---|---|
| RAMⓘ | 12 GB | 16 GBlead |
| Storageⓘ | 512 GB | 512 GB |
| AnTuTuⓘ | 2100000 | 2950000lead |
| CPU total clockⓘ | 20.4 GHz | 23.6 GHzlead |
Cameras
| Spec | Apple - iPhone 17 Pro Max | OnePlus 15 |
|---|---|---|
| Main cameraⓘ | 48 MP | 50 MPlead |
| Front camera | 12 MP | 32 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Apple - iPhone 17 Pro Max | OnePlus 15 |
|---|---|---|
| Battery capacityⓘ | 4685 mAh | 7500 mAhlead |
| Wired chargingⓘ | 30 W | 120 Wlead |
| Wireless chargingⓘ | 25 W | 50 Wlead |
Connectivity
| Spec | Apple - iPhone 17 Pro Max | OnePlus 15 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Apple - iPhone 17 Pro Max | OnePlus 15 |
|---|---|---|
| OS | iOSlead | Android |
| Promised OS updates | 6 yearslead | 5 years |
Frequently asked
Which has better battery, iPhone 17 Pro Max or OnePlus 15?+
OnePlus 15 has 60.1% more battery — 4685 mAh vs 7500 mAh.
Which is lighter, iPhone 17 Pro Max or OnePlus 15?+
OnePlus 15 is 16g lighter — 227g vs 211g.
Is iPhone 17 Pro Max waterproof?+
iPhone 17 Pro Max has an IP68 rating.
Does OnePlus 15 support 5G?+
Yes, OnePlus 15 supports 5G.
Which has more RAM, iPhone 17 Pro Max or OnePlus 15?+
OnePlus 15 offers 16GB of RAM.
Which has a better camera, iPhone 17 Pro Max or OnePlus 15?+
OnePlus 15 has a 50 MP main camera vs 48 MP.