Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | ASUS - Zenfone 11 Ultra | Apple - iPhone Duo |
|---|---|---|
| Front camera | 32 MP | 12 MP |
| AnTuTu | 2070000 | 3550000 |
| Wireless charging | 15 W | 25 W |
| RAM | 16 GB | 12 GB |
| Weight | 224 g | 254 g |
| Refresh rate | 144 Hz | 120 Hz |
Between the Zenfone 11 Ultra and iPhone Duo, the Zenfone 11 Ultra comes out ahead in front camera / ram, while the iPhone Duo wins on antutu / wireless charging. Overall, the Zenfone 11 Ultra scores 69.2 and the iPhone Duo scores 69.8 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (69.2 vs 69.8). 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 you photograph or shoot video regularly and want the better imaging pipeline of the two. The biggest gaps in its favor are front camera, ram, weight, among others. The single most decisive one: Front camera — 166.67% more. 32 MP vs 12 MP.
Pick the iPhone Duo 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 antutu, wireless charging, screen size, among others. The single most decisive one: AnTuTu — 71.50% more. 3550000 vs 2070000.
Both ship with comparable 5g support, water resistance, optical image stabilization, 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 Apple - iPhone Duo?
Apple - iPhone Duo 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 ASUS - Zenfone 11 Ultra if…
ASUS - Zenfone 11 Ultra has the measurable edge on front cam mp, ram gb, weight g.
Choose Apple - iPhone Duo if…
Apple - iPhone Duo has the measurable edge on antutu score, wireless charging w, 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 ASUS - Zenfone 11 Ultra wins
- ▲Front camera — 166.67% more. 32 MP vs 12 MP.
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲Weight — 30.00 g less. 224 vs 254.
- ▲Refresh rate — 20.00% more. 144 Hz vs 120 Hz.
- ▲Battery capacity — 12.64% more. 5500 mAh vs 4883 mAh.
- ▲Wired charging — 8.33% more. 65 W vs 60 W.
- ▲Main camera — 4.17% more. 50 MP vs 48 MP.
Why Apple - iPhone Duo wins
- ▲AnTuTu — 71.50% more. 3550000 vs 2070000.
- ▲Wireless charging — 66.67% more. 25 W vs 15 W.
- ▲Screen size — 12.09% more. 7.6 " vs 6.78 ".
- ▲Pixel density — 10.82% more. 430 ppi vs 388 ppi.
- ▲Promised OS updates: 6 (vs 2).
Spec comparison
Design
| Spec | ASUS - Zenfone 11 Ultra | Apple - iPhone Duo |
|---|---|---|
| Weight | 224 glead | 254 g |
| Thickness | 8.9 mmlead | 11.3 mm |
| Water resistanceⓘ | IP68 | IP68 |
| Form factor | bar | foldable_booklead |
Display
| Spec | ASUS - Zenfone 11 Ultra | Apple - iPhone Duo |
|---|---|---|
| Screen size | 6.78 " | 7.6 "lead |
| Pixel densityⓘ | 388 ppi | 430 ppilead |
| Refresh rateⓘ | 144 Hzlead | 120 Hz |
| Peak brightnessⓘ | 2500 nits | 3000 nitslead |
Performance
| Spec | ASUS - Zenfone 11 Ultra | Apple - iPhone Duo |
|---|---|---|
| RAMⓘ | 16 GBlead | 12 GB |
| Storageⓘ | 512 GBlead | 256 GB |
| AnTuTuⓘ | 2070000 | 3550000lead |
| CPU total clockⓘ | 21.4 GHzlead | 20.3 GHz |
Cameras
| Spec | ASUS - Zenfone 11 Ultra | Apple - iPhone Duo |
|---|---|---|
| Main cameraⓘ | 50 MPlead | 48 MP |
| Front camera | 32 MPlead | 12 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | ASUS - Zenfone 11 Ultra | Apple - iPhone Duo |
|---|---|---|
| Battery capacityⓘ | 5500 mAhlead | 4883 mAh |
| Wired chargingⓘ | 65 Wlead | 60 W |
| Wireless chargingⓘ | 15 W | 25 Wlead |
Connectivity
| Spec | ASUS - Zenfone 11 Ultra | Apple - iPhone Duo |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | ASUS - Zenfone 11 Ultra | Apple - iPhone Duo |
|---|---|---|
| OS | Android | iOSlead |
| Promised OS updates | 2 years | 6 yearslead |
Frequently asked
Which has better battery, Zenfone 11 Ultra or iPhone Duo?+
Zenfone 11 Ultra has 12.6% more battery — 5500 mAh vs 4883 mAh.
Which is lighter, Zenfone 11 Ultra or iPhone Duo?+
Zenfone 11 Ultra is 30g lighter — 224g vs 254g.
Is Zenfone 11 Ultra waterproof?+
Zenfone 11 Ultra has an IP68 rating.
Does iPhone Duo support 5G?+
Yes, iPhone Duo supports 5G.
Which has more RAM, Zenfone 11 Ultra or iPhone Duo?+
Zenfone 11 Ultra offers 16GB of RAM.
Which has a better camera, Zenfone 11 Ultra or iPhone Duo?+
Zenfone 11 Ultra has a 50 MP main camera vs 48 MP.