Between the iPhone 15 Pro Max and Z70 Ultra, the iPhone 15 Pro Max comes out ahead in pixel density and weight, while the Z70 Ultra wins on wired charging and ram. Overall, the iPhone 15 Pro Max scores 63.2 and the Z70 Ultra scores 75.1 on our Mars Score.
Which should you buy?
The Z70 Ultra is the clear pick on raw spec strength, leading by 11.9 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 15 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, weight, promised os updates.
Pick the Z70 Ultra if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. Its strongest claims are wired charging, ram, antutu, among others.
Both ship with comparable 5g support, water resistance, optical image stabilization, so those specs don't separate the two — focus on the differences below.
Bottom line: the Z70 Ultra is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Apple - iPhone 15 Pro Max wins
- ▲Pixel density — 18.56% more. 460 ppi vs 388 ppi.
- ▲Weight — 6.00 g less. 221 vs 227.
- ▲Promised OS updates: 5 (vs 3).
Why Nubia - Z70 Ultra wins
- ▲Wired charging — 196.30% more. 80 W vs 27 W.
- ▲RAM — 100.00% more. 16 GB vs 8 GB.
- ▲AnTuTu — 72.55% more. 2640000 vs 1530000.
- ▲Battery capacity — 39.08% more. 6150 mAh vs 4422 mAh.
- ▲Front camera — 33.33% more. 16 MP vs 12 MP.
- ▲Refresh rate — 20.00% more. 144 Hz vs 120 Hz.
- ▲Main camera — 4.17% more. 50 MP vs 48 MP.
- ▲Screen size — 2.24% more. 6.85 " vs 6.7 ".
Spec comparison
Design
| Spec | Apple - iPhone 15 Pro Max | Nubia - Z70 Ultra |
|---|---|---|
| Weight | 221 glead | 227 g |
| Thickness | 8.25 mmlead | 8.7 mm |
| Water resistanceⓘ | IP68 | IP68 |
| Form factor | bar | bar |
Display
| Spec | Apple - iPhone 15 Pro Max | Nubia - Z70 Ultra |
|---|---|---|
| Screen sizeⓘ | 6.7 " | 6.85 "lead |
| Pixel densityⓘ | 460 ppilead | 388 ppi |
| Refresh rateⓘ | 120 Hz | 144 Hzlead |
| Peak brightnessⓘ | 2000 nits | 2000 nits |
Performance
Cameras
| Spec | Apple - iPhone 15 Pro Max | Nubia - Z70 Ultra |
|---|---|---|
| Main cameraⓘ | 48 MP | 50 MPlead |
| Front camera | 12 MP | 16 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Apple - iPhone 15 Pro Max | Nubia - Z70 Ultra |
|---|---|---|
| Battery capacity | 4422 mAh | 6150 mAhlead |
| Wired chargingⓘ | 27 W | 80 Wlead |
| Wireless chargingⓘ | 15 W | 15 W |
Connectivity
| Spec | Apple - iPhone 15 Pro Max | Nubia - Z70 Ultra |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Apple - iPhone 15 Pro Max | Nubia - Z70 Ultra |
|---|---|---|
| OS | iOSlead | Android |
| Promised OS updates | 5 yearslead | 3 years |
Frequently asked
Which has better battery, iPhone 15 Pro Max or Z70 Ultra?+
Z70 Ultra has 39.1% more battery — 4422 mAh vs 6150 mAh.
Which is lighter, iPhone 15 Pro Max or Z70 Ultra?+
iPhone 15 Pro Max is 6g lighter — 221g vs 227g.
Is iPhone 15 Pro Max waterproof?+
iPhone 15 Pro Max has an IP68 rating.
Does Z70 Ultra support 5G?+
Yes, Z70 Ultra supports 5G.
Which has more RAM, iPhone 15 Pro Max or Z70 Ultra?+
Z70 Ultra offers 16GB of RAM.
Which has a better camera, iPhone 15 Pro Max or Z70 Ultra?+
Z70 Ultra has a 50 MP main camera vs 48 MP.
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.