Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | ASUS - Zenfone 11 Ultra | Xiaomi - MIX Fold 4 |
|---|---|---|
| Wireless charging | 15 W | 50 W |
| Front camera | 32 MP | 20 MP |
| Refresh rate | 144 Hz | 120 Hz |
| Screen size | 6.78 " | 7.98 " |
| Battery capacity | 5500 mAh | 5100 mAh |
| Pixel density | 388 ppi | 402 ppi |
Between the Zenfone 11 Ultra and MIX Fold 4, the Zenfone 11 Ultra comes out ahead in front camera / refresh rate, while the MIX Fold 4 wins on wireless charging / screen size. Overall, the Zenfone 11 Ultra scores 69.2 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 (69.2 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 Zenfone 11 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 front camera, refresh rate, battery capacity, 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, screen size, 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: ASUS - Zenfone 11 Ultra or Xiaomi - MIX Fold 4?
Xiaomi - MIX Fold 4 leads the current Mars Score by 0.3 points.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 ASUS - Zenfone 11 Ultra if…
ASUS - Zenfone 11 Ultra has the measurable edge on front cam mp, refresh rate hz, battery capacity mah.
Choose Xiaomi - MIX Fold 4 if…
Xiaomi - MIX Fold 4 has the measurable edge on wireless charging w, screen size in, 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 ASUS - Zenfone 11 Ultra wins
- ▲Front camera — 60.00% more. 32 MP vs 20 MP.
- ▲Refresh rate — 20.00% more. 144 Hz vs 120 Hz.
- ▲Battery capacity — 7.84% more. 5500 mAh vs 5100 mAh.
- ▲Weight — 2.00 g less. 224 vs 226.
- ▲AnTuTu — 1.47% more. 2070000 vs 2040000.
Why Xiaomi - MIX Fold 4 wins
- ▲Wireless charging — 233.33% more. 50 W vs 15 W.
- ▲Screen size — 17.70% more. 7.98 " vs 6.78 ".
- ▲Pixel density — 3.61% more. 402 ppi vs 388 ppi.
- ▲Wired charging — 3.08% more. 67 W vs 65 W.
- ▲Water resistance: IPX8 (vs IP68).
- ▲Promised OS updates: 4 (vs 2).
Spec comparison
Design
| Spec | ASUS - Zenfone 11 Ultra | Xiaomi - MIX Fold 4 |
|---|---|---|
| Weight | 224 glead | 226 g |
| Thickness | 8.9 mmlead | 9.47 mm |
| Water resistanceⓘ | IP68 | IPX8lead |
| Form factor | bar | foldable_booklead |
Display
| Spec | ASUS - Zenfone 11 Ultra | Xiaomi - MIX Fold 4 |
|---|---|---|
| Screen size | 6.78 " | 7.98 "lead |
| Pixel densityⓘ | 388 ppi | 402 ppilead |
| Refresh rateⓘ | 144 Hzlead | 120 Hz |
| Peak brightnessⓘ | 2500 nits | 3000 nitslead |
Performance
| Spec | ASUS - Zenfone 11 Ultra | Xiaomi - MIX Fold 4 |
|---|---|---|
| RAMⓘ | 16 GB | 16 GB |
| Storageⓘ | 512 GB | 512 GB |
| AnTuTuⓘ | 2070000lead | 2040000 |
| CPU total clockⓘ | 21.4 GHzlead | 21.0 GHz |
Cameras
| Spec | ASUS - Zenfone 11 Ultra | Xiaomi - MIX Fold 4 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MPlead | 20 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | ASUS - Zenfone 11 Ultra | Xiaomi - MIX Fold 4 |
|---|---|---|
| Battery capacityⓘ | 5500 mAhlead | 5100 mAh |
| Wired chargingⓘ | 65 W | 67 Wlead |
| Wireless chargingⓘ | 15 W | 50 Wlead |
Connectivity
| Spec | ASUS - Zenfone 11 Ultra | Xiaomi - MIX Fold 4 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | ASUS - Zenfone 11 Ultra | Xiaomi - MIX Fold 4 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 2 years | 4 yearslead |
Frequently asked
Which has better battery, Zenfone 11 Ultra or MIX Fold 4?+
Zenfone 11 Ultra has 7.8% more battery — 5500 mAh vs 5100 mAh.
Which is lighter, Zenfone 11 Ultra or MIX Fold 4?+
Zenfone 11 Ultra is 2g lighter — 224g vs 226g.
Is Zenfone 11 Ultra waterproof?+
Zenfone 11 Ultra has an IP68 rating.
Does MIX Fold 4 support 5G?+
Yes, MIX Fold 4 supports 5G.
Which has a better camera, Zenfone 11 Ultra or MIX Fold 4?+
MIX Fold 4 has a 50 MP main camera vs 50 MP.