Between the Z70 Ultra and OnePlus 15, the Z70 Ultra comes out ahead in refresh rate and screen size, while the OnePlus 15 wins on wireless charging and front camera. Overall, the Z70 Ultra scores 75.1 and the OnePlus 15 scores 78.4 on our Mars Score.
Which should you buy?
The OnePlus 15 edges ahead on the Mars Score (75.1 vs 78.4), but the 3.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Z70 Ultra 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 refresh rate, screen size.
Pick the OnePlus 15 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 ram, main camera, 5g support, so those specs don't 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 tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Nubia - Z70 Ultra wins
- ▲Refresh rate — 20.00% more. 144 Hz vs 120 Hz.
- ▲Screen size — 1.03% more. 6.85 " vs 6.78 ".
Why OnePlus 15 wins
- ▲Wireless charging — 233.33% more. 50 W vs 15 W.
- ▲Front camera — 100.00% more. 32 MP vs 16 MP.
- ▲Wired charging — 50.00% more. 120 W vs 80 W.
- ▲Battery capacity — 21.95% more. 7500 mAh vs 6150 mAh.
- ▲Weight — 16.00 g less. 211 vs 227.
- ▲Pixel density — 15.98% more. 450 ppi vs 388 ppi.
- ▲AnTuTu — 11.74% more. 2950000 vs 2640000.
- ▲Water resistance: IP69 (vs IP68).
Spec comparison
Design
| Spec | Nubia - Z70 Ultra | OnePlus 15 |
|---|---|---|
| Weight | 227 g | 211 glead |
| Thickness | 8.7 mm | 8.3 mmlead |
| Water resistanceⓘ | IP68 | IP69lead |
| Form factor | bar | bar |
Display
| Spec | Nubia - Z70 Ultra | OnePlus 15 |
|---|---|---|
| Screen sizeⓘ | 6.85 "lead | 6.78 " |
| Pixel densityⓘ | 388 ppi | 450 ppilead |
| Refresh rateⓘ | 144 Hzlead | 120 Hz |
| Peak brightnessⓘ | 2000 nits | 4500 nitslead |
Performance
Cameras
| Spec | Nubia - Z70 Ultra | OnePlus 15 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 16 MP | 32 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Nubia - Z70 Ultra | OnePlus 15 |
|---|---|---|
| Battery capacity | 6150 mAh | 7500 mAhlead |
| Wired chargingⓘ | 80 W | 120 Wlead |
| Wireless chargingⓘ | 15 W | 50 Wlead |
Connectivity
| Spec | Nubia - Z70 Ultra | OnePlus 15 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Nubia - Z70 Ultra | OnePlus 15 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 3 years | 5 yearslead |
Frequently asked
Which has better battery, Z70 Ultra or OnePlus 15?+
OnePlus 15 has 22.0% more battery — 6150 mAh vs 7500 mAh.
Which is lighter, Z70 Ultra or OnePlus 15?+
OnePlus 15 is 16g lighter — 227g vs 211g.
Is Z70 Ultra waterproof?+
Z70 Ultra has an IP68 rating.
Does OnePlus 15 support 5G?+
Yes, OnePlus 15 supports 5G.
Which has a better camera, Z70 Ultra or OnePlus 15?+
OnePlus 15 has a 50 MP main camera vs 50 MP.
Spec-level deep dives
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