Between the Nord CE 4 and Xiaomi 15 Ultra, the Nord CE 4 comes out ahead in weight and wired charging, while the Xiaomi 15 Ultra wins on antutu and ram. Overall, the Nord CE 4 scores 63.2 and the Xiaomi 15 Ultra scores 73.8 on our Mars Score.
Which should you buy?
The Xiaomi 15 Ultra is the clear pick on raw spec strength, leading by 10.6 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 Nord CE 4 if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are weight, wired charging.
Pick the Xiaomi 15 Ultra if you photograph or shoot video regularly and want the better imaging pipeline of the two. Its strongest claims are antutu, ram, front camera, among others.
Both ship with comparable main camera, refresh rate, 5g support, so those specs don't separate the two — focus on the differences below.
Bottom line: the Xiaomi 15 Ultra is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why OnePlus - Nord CE 4 wins
- ▲Weight — 43.00 g less. 186 vs 229.
- ▲Wired charging — 11.11% more. 100 W vs 90 W.
Why Xiaomi 15 Ultra wins
- ▲AnTuTu — 277.78% more. 2720000 vs 720000.
- ▲RAM — 100.00% more. 16 GB vs 8 GB.
- ▲Front camera — 100.00% more. 32 MP vs 16 MP.
- ▲Pixel density — 32.49% more. 522 ppi vs 394 ppi.
- ▲Battery capacity — 9.09% more. 6000 mAh vs 5500 mAh.
- ▲Water resistance: IP68 (vs IP54).
- ▲Promised OS updates: 4 (vs 3).
- ▲Screen size — 0.45% more. 6.73 " vs 6.7 ".
Spec comparison
Design
| Spec | OnePlus - Nord CE 4 | Xiaomi 15 Ultra |
|---|---|---|
| Weight | 186 glead | 229 g |
| Thickness | 8.2 mmlead | 9.4 mm |
| Water resistanceⓘ | IP54 | IP68lead |
| Form factor | bar | bar |
Display
| Spec | OnePlus - Nord CE 4 | Xiaomi 15 Ultra |
|---|---|---|
| Screen sizeⓘ | 6.7 " | 6.73 "lead |
| Pixel densityⓘ | 394 ppi | 522 ppilead |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 1100 nits | 3200 nitslead |
Performance
Cameras
| Spec | OnePlus - Nord CE 4 | Xiaomi 15 Ultra |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 16 MP | 32 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | OnePlus - Nord CE 4 | Xiaomi 15 Ultra |
|---|---|---|
| Battery capacity | 5500 mAh | 6000 mAhlead |
| Wired chargingⓘ | 100 Wlead | 90 W |
| Wireless chargingⓘ | 0 W | 80 Wlead |
Connectivity
| Spec | OnePlus - Nord CE 4 | Xiaomi 15 Ultra |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | truelead | false |
Operating System
| Spec | OnePlus - Nord CE 4 | Xiaomi 15 Ultra |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 3 years | 4 yearslead |
Frequently asked
Which has better battery, Nord CE 4 or Xiaomi 15 Ultra?+
Xiaomi 15 Ultra has 9.1% more battery — 5500 mAh vs 6000 mAh.
Which is lighter, Nord CE 4 or Xiaomi 15 Ultra?+
Nord CE 4 is 43g lighter — 186g vs 229g.
Is Nord CE 4 waterproof?+
Nord CE 4 has an IP54 rating.
Does Xiaomi 15 Ultra support 5G?+
Yes, Xiaomi 15 Ultra supports 5G.
Which has more RAM, Nord CE 4 or Xiaomi 15 Ultra?+
Xiaomi 15 Ultra offers 16GB of RAM.
Which has a better camera, Nord CE 4 or Xiaomi 15 Ultra?+
Xiaomi 15 Ultra has a 50 MP main camera vs 50 MP.
Spec-level deep dives
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