Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Nubia - Z70 Ultra | Xiaomi 15 Pro |
|---|---|---|
| Wireless charging | 15 W | 50 W |
| Front camera | 16 MP | 32 MP |
| Pixel density | 388 ppi | 522 ppi |
| Refresh rate | 144 Hz | 120 Hz |
| Weight | 227 g | 213 g |
| Wired charging | 80 W | 90 W |
Between the Z70 Ultra and Xiaomi 15 Pro, the Z70 Ultra comes out ahead in refresh rate / screen size, while the Xiaomi 15 Pro wins on wireless charging / front camera. Overall, the Z70 Ultra scores 72.4 and the Xiaomi 15 Pro scores 72.4 on our Mars Score.
Which should you buy?
These two are evenly matched on the broad strokes; the decision sits on which individual spec advantages weigh more for your use.
Pick the Z70 Ultra if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. The biggest gaps in its favor are refresh rate, screen size, battery capacity. The single most decisive one: Refresh rate — 20.00% more. 144 Hz vs 120 Hz.
Pick the Xiaomi 15 Pro if you photograph or shoot video regularly and want the better imaging pipeline of the two. Its strongest claims are wireless charging, front camera, pixel density, among others. The single most decisive one: Wireless charging — 233.33% more. 50 W vs 15 W.
Both ship with comparable ram, main camera, 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: Nubia - Z70 Ultra or Xiaomi 15 Pro?
The two products are effectively tied on the current Mars Score.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 Nubia - Z70 Ultra if…
Nubia - Z70 Ultra has the measurable edge on refresh rate hz, screen size in, battery capacity mah.
Choose Xiaomi 15 Pro if…
Xiaomi 15 Pro has the measurable edge on wireless charging w, front cam mp, pixel density ppi.
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 Nubia - Z70 Ultra wins
- ▲Refresh rate — 20.00% more. 144 Hz vs 120 Hz.
- ▲Screen size — 1.78% more. 6.85 " vs 6.73 ".
- ▲Battery capacity — 0.82% more. 6150 mAh vs 6100 mAh.
Why Xiaomi 15 Pro wins
- ▲Wireless charging — 233.33% more. 50 W vs 15 W.
- ▲Front camera — 100.00% more. 32 MP vs 16 MP.
- ▲Pixel density — 34.54% more. 522 ppi vs 388 ppi.
- ▲Weight — 14.00 g less. 213 vs 227.
- ▲Wired charging — 12.50% more. 90 W vs 80 W.
- ▲AnTuTu — 2.65% more. 2710000 vs 2640000.
- ▲Promised OS updates: 4 (vs 3).
Spec comparison
Design
| Spec | Nubia - Z70 Ultra | Xiaomi 15 Pro |
|---|---|---|
| Weight | 227 g | 213 glead |
| Thickness | 8.7 mm | 8.4 mmlead |
| Water resistanceⓘ | IP68 | IP68 |
| Form factor | bar | bar |
Display
| Spec | Nubia - Z70 Ultra | Xiaomi 15 Pro |
|---|---|---|
| Screen size | 6.85 "lead | 6.73 " |
| Pixel densityⓘ | 388 ppi | 522 ppilead |
| Refresh rateⓘ | 144 Hzlead | 120 Hz |
| Peak brightnessⓘ | 2000 nits | 3200 nitslead |
Performance
| Spec | Nubia - Z70 Ultra | Xiaomi 15 Pro |
|---|---|---|
| RAMⓘ | 16 GB | 16 GB |
| Storageⓘ | 512 GB | 512 GB |
| AnTuTuⓘ | 2640000 | 2710000lead |
| CPU total clockⓘ | 22.8 GHz | 22.8 GHz |
Cameras
| Spec | Nubia - Z70 Ultra | Xiaomi 15 Pro |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 16 MP | 32 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Nubia - Z70 Ultra | Xiaomi 15 Pro |
|---|---|---|
| Battery capacityⓘ | 6150 mAhlead | 6100 mAh |
| Wired chargingⓘ | 80 W | 90 Wlead |
| Wireless chargingⓘ | 15 W | 50 Wlead |
Connectivity
| Spec | Nubia - Z70 Ultra | Xiaomi 15 Pro |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Nubia - Z70 Ultra | Xiaomi 15 Pro |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 3 years | 4 yearslead |
Frequently asked
Which has better battery, Z70 Ultra or Xiaomi 15 Pro?+
Z70 Ultra has 0.8% more battery — 6150 mAh vs 6100 mAh.
Which is lighter, Z70 Ultra or Xiaomi 15 Pro?+
Xiaomi 15 Pro is 14g lighter — 227g vs 213g.
Is Z70 Ultra waterproof?+
Z70 Ultra has an IP68 rating.
Does Xiaomi 15 Pro support 5G?+
Yes, Xiaomi 15 Pro supports 5G.
Which has a better camera, Z70 Ultra or Xiaomi 15 Pro?+
Xiaomi 15 Pro has a 50 MP main camera vs 50 MP.