Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Nothing - Phone (3) | Xiaomi - MIX Fold 4 |
|---|---|---|
| Wireless charging | 15 W | 50 W |
| Front camera | 32 MP | 20 MP |
| RAM | 12 GB | 16 GB |
| Weight | 196 g | 226 g |
| Screen size | 6.7 " | 7.98 " |
| Pixel density | 460 ppi | 402 ppi |
Between the Phone (3) and MIX Fold 4, the Phone (3) comes out ahead in front camera / weight, while the MIX Fold 4 wins on wireless charging / ram. Overall, the Phone (3) scores 68.9 and the MIX Fold 4 scores 69.5 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (68.9 vs 69.5). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the Phone (3) if you photograph or shoot video regularly and want the better imaging pipeline of the two. The biggest gaps in its favor are front camera, weight, pixel density, among others. The single most decisive one: Front camera — 60.00% more. 32 MP vs 20 MP.
Pick the MIX Fold 4 if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. Its strongest claims are wireless charging, ram, screen size, among others. The single most decisive one: Wireless charging — 233.33% more. 50 W vs 15 W.
Both ship with comparable main camera, 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: Nothing - Phone (3) or Xiaomi - MIX Fold 4?
Xiaomi - MIX Fold 4 leads the current Mars Score by 0.6 points.The more useful decision is the trade-off behind that result: compare screen size, ram, pixel density, battery capacity against the way you will actually use the product.
Choose Nothing - Phone (3) if…
Nothing - Phone (3) has the measurable edge on front cam mp, weight g, pixel density ppi.
Choose Xiaomi - MIX Fold 4 if…
Xiaomi - MIX Fold 4 has the measurable edge on wireless charging w, ram gb, screen size in.
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 Nothing - Phone (3) wins
- ▲Front camera — 60.00% more. 32 MP vs 20 MP.
- ▲Weight — 30.00 g less. 196 vs 226.
- ▲Pixel density — 14.43% more. 460 ppi vs 402 ppi.
- ▲Battery capacity — 0.98% more. 5150 mAh vs 5100 mAh.
- ▲Promised OS updates: 5 (vs 4).
- ▲AnTuTu — 0.49% more. 2050000 vs 2040000.
Why Xiaomi - MIX Fold 4 wins
- ▲Wireless charging — 233.33% more. 50 W vs 15 W.
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲Screen size — 19.10% more. 7.98 " vs 6.7 ".
- ▲Wired charging — 3.08% more. 67 W vs 65 W.
- ▲Water resistance: IPX8 (vs IP68).
Spec comparison
Design
| Spec | Nothing - Phone (3) | Xiaomi - MIX Fold 4 |
|---|---|---|
| Weight | 196 glead | 226 g |
| Thickness | 8.4 mmlead | 9.47 mm |
| Water resistanceⓘ | IP68 | IPX8lead |
| Form factor | bar | foldable_booklead |
Display
| Spec | Nothing - Phone (3) | Xiaomi - MIX Fold 4 |
|---|---|---|
| Screen size | 6.7 " | 7.98 "lead |
| Pixel densityⓘ | 460 ppilead | 402 ppi |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 4500 nitslead | 3000 nits |
Performance
| Spec | Nothing - Phone (3) | Xiaomi - MIX Fold 4 |
|---|---|---|
| RAMⓘ | 12 GB | 16 GBlead |
| Storageⓘ | 256 GB | 512 GBlead |
| AnTuTuⓘ | 2050000lead | 2040000 |
| CPU total clockⓘ | 21.6 GHzlead | 21.0 GHz |
Cameras
| Spec | Nothing - Phone (3) | Xiaomi - MIX Fold 4 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MPlead | 20 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Nothing - Phone (3) | Xiaomi - MIX Fold 4 |
|---|---|---|
| Battery capacityⓘ | 5150 mAhlead | 5100 mAh |
| Wired chargingⓘ | 65 W | 67 Wlead |
| Wireless chargingⓘ | 15 W | 50 Wlead |
Connectivity
| Spec | Nothing - Phone (3) | Xiaomi - MIX Fold 4 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Nothing - Phone (3) | Xiaomi - MIX Fold 4 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 5 yearslead | 4 years |
Frequently asked
Which has better battery, Phone (3) or MIX Fold 4?+
Phone (3) has 1.0% more battery — 5150 mAh vs 5100 mAh.
Which is lighter, Phone (3) or MIX Fold 4?+
Phone (3) is 30g lighter — 196g vs 226g.
Is Phone (3) waterproof?+
Phone (3) has an IP68 rating.
Does MIX Fold 4 support 5G?+
Yes, MIX Fold 4 supports 5G.
Which has more RAM, Phone (3) or MIX Fold 4?+
MIX Fold 4 offers 16GB of RAM.
Which has a better camera, Phone (3) or MIX Fold 4?+
MIX Fold 4 has a 50 MP main camera vs 50 MP.