Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Apple - iPhone 18 Pro Max | OnePlus 13R |
|---|---|---|
| AnTuTu | 3550000 | 2080000 |
| Weight | 249 g | 206 g |
| Wired charging | 60 W | 80 W |
| Front camera | 18 MP | 16 MP |
| Battery capacity | 5391 mAh | 6000 mAh |
| Main camera | 48 MP | 50 MP |
Between the iPhone 18 Pro Max and OnePlus 13R, the iPhone 18 Pro Max comes out ahead in antutu / front camera, while the OnePlus 13R wins on weight / wired charging. Overall, the iPhone 18 Pro Max scores 69.9 and the OnePlus 13R scores 70.3 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (69.9 vs 70.3). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the iPhone 18 Pro Max if you photograph or shoot video regularly and want the better imaging pipeline of the two. The biggest gaps in its favor are antutu, front camera, pixel density, among others. The single most decisive one: AnTuTu — 70.67% more. 3550000 vs 2080000.
Pick the OnePlus 13R 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 weight, wired charging, battery capacity, among others. The single most decisive one: Weight — 43.00 g less. 206 vs 249.
Both ship with comparable ram, refresh rate, 5g support, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Apple - iPhone 18 Pro Max or OnePlus 13R?
OnePlus 13R leads the current Mars Score by 0.4 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 Apple - iPhone 18 Pro Max if…
Apple - iPhone 18 Pro Max has the measurable edge on antutu score, front cam mp, pixel density ppi.
Choose OnePlus 13R if…
OnePlus 13R has the measurable edge on weight g, wired charging w, battery capacity mah.
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 18 Pro Max wins
- ▲AnTuTu — 70.67% more. 3550000 vs 2080000.
- ▲Front camera — 12.50% more. 18 MP vs 16 MP.
- ▲Pixel density — 2.22% more. 460 ppi vs 450 ppi.
- ▲Screen size — 1.77% more. 6.9 " vs 6.78 ".
- ▲Water resistance: IP68 (vs IP65).
- ▲Promised OS updates: 6 (vs 4).
- ▲Wireless charging: 25 W vs 0 W.
Why OnePlus 13R wins
- ▲Weight — 43.00 g less. 206 vs 249.
- ▲Wired charging — 33.33% more. 80 W vs 60 W.
- ▲Battery capacity — 11.30% more. 6000 mAh vs 5391 mAh.
- ▲Main camera — 4.17% more. 50 MP vs 48 MP.
Spec comparison
Design
| Spec | Apple - iPhone 18 Pro Max | OnePlus 13R |
|---|---|---|
| Weight | 249 g | 206 glead |
| Thickness | 8.75 mm | 8.0 mmlead |
| Water resistanceⓘ | IP68lead | IP65 |
| Form factor | bar | bar |
Display
| Spec | Apple - iPhone 18 Pro Max | OnePlus 13R |
|---|---|---|
| Screen size | 6.9 "lead | 6.78 " |
| Pixel densityⓘ | 460 ppilead | 450 ppi |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 3000 nits | 4500 nitslead |
Performance
| Spec | Apple - iPhone 18 Pro Max | OnePlus 13R |
|---|---|---|
| RAMⓘ | 12 GB | 12 GB |
| Storageⓘ | 256 GB | 256 GB |
| AnTuTuⓘ | 3550000lead | 2080000 |
| CPU total clockⓘ | 20.3 GHz | 21.4 GHzlead |
Cameras
| Spec | Apple - iPhone 18 Pro Max | OnePlus 13R |
|---|---|---|
| Main cameraⓘ | 48 MP | 50 MPlead |
| Front camera | 18 MPlead | 16 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Apple - iPhone 18 Pro Max | OnePlus 13R |
|---|---|---|
| Battery capacityⓘ | 5391 mAh | 6000 mAhlead |
| Wired chargingⓘ | 60 W | 80 Wlead |
| Wireless chargingⓘ | 25 Wlead | 0 W |
Connectivity
| Spec | Apple - iPhone 18 Pro Max | OnePlus 13R |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Apple - iPhone 18 Pro Max | OnePlus 13R |
|---|---|---|
| OS | iOSlead | Android |
| Promised OS updates | 6 yearslead | 4 years |
Frequently asked
Which has better battery, iPhone 18 Pro Max or OnePlus 13R?+
OnePlus 13R has 11.3% more battery — 5391 mAh vs 6000 mAh.
Which is lighter, iPhone 18 Pro Max or OnePlus 13R?+
OnePlus 13R is 43g lighter — 249g vs 206g.
Is iPhone 18 Pro Max waterproof?+
iPhone 18 Pro Max has an IP68 rating.
Does OnePlus 13R support 5G?+
Yes, OnePlus 13R supports 5G.
Which has a better camera, iPhone 18 Pro Max or OnePlus 13R?+
OnePlus 13R has a 50 MP main camera vs 48 MP.