Between the Zenfone 11 Ultra and Pixel 9a, the Zenfone 11 Ultra comes out ahead in wired charging and front camera, while the Pixel 9a wins on weight and pixel density. Overall, the Zenfone 11 Ultra scores 71.9 and the Pixel 9a scores 63.2 on our Mars Score.
Which should you buy?
The Zenfone 11 Ultra is the clear pick on raw spec strength, leading by 8.7 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 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 wired charging, front camera, ram, among others.
Pick the Pixel 9a 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 weight, pixel density, promised os updates.
Both ship with comparable 5g support, water resistance, optical image stabilization, so those specs don't separate the two — focus on the differences below.
Bottom line: the Zenfone 11 Ultra is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why ASUS - Zenfone 11 Ultra wins
- ▲Wired charging — 182.61% more. 65 W vs 23 W.
- ▲Front camera — 146.15% more. 32 MP vs 13 MP.
- ▲RAM — 100.00% more. 16 GB vs 8 GB.
- ▲Wireless charging — 100.00% more. 15 W vs 7.5 W.
- ▲AnTuTu — 66.94% more. 2070000 vs 1240000.
- ▲Refresh rate — 20.00% more. 144 Hz vs 120 Hz.
- ▲Battery capacity — 7.84% more. 5500 mAh vs 5100 mAh.
- ▲Screen size — 7.62% more. 6.78 " vs 6.3 ".
Why Google - Pixel 9a wins
- ▲Weight — 38.00 g less. 186 vs 224.
- ▲Pixel density — 8.76% more. 422 ppi vs 388 ppi.
- ▲Promised OS updates: 7 (vs 2).
Spec comparison
Design
| Spec | ASUS - Zenfone 11 Ultra | Google - Pixel 9a |
|---|---|---|
| Weight | 224 g | 186 glead |
| Thickness | 8.9 mm | 8.9 mm |
| Water resistanceⓘ | IP68 | IP68 |
| Form factor | bar | bar |
Display
| Spec | ASUS - Zenfone 11 Ultra | Google - Pixel 9a |
|---|---|---|
| Screen sizeⓘ | 6.78 "lead | 6.3 " |
| Pixel densityⓘ | 388 ppi | 422 ppilead |
| Refresh rateⓘ | 144 Hzlead | 120 Hz |
| Peak brightnessⓘ | 2500 nits | 2700 nitslead |
Performance
Cameras
| Spec | ASUS - Zenfone 11 Ultra | Google - Pixel 9a |
|---|---|---|
| Main cameraⓘ | 50 MPlead | 48 MP |
| Front camera | 32 MPlead | 13 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | ASUS - Zenfone 11 Ultra | Google - Pixel 9a |
|---|---|---|
| Battery capacity | 5500 mAhlead | 5100 mAh |
| Wired chargingⓘ | 65 Wlead | 23 W |
| Wireless chargingⓘ | 15 Wlead | 7.5 W |
Connectivity
| Spec | ASUS - Zenfone 11 Ultra | Google - Pixel 9a |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | ASUS - Zenfone 11 Ultra | Google - Pixel 9a |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 2 years | 7 yearslead |
Frequently asked
Which has better battery, Zenfone 11 Ultra or Pixel 9a?+
Zenfone 11 Ultra has 7.8% more battery — 5500 mAh vs 5100 mAh.
Which is lighter, Zenfone 11 Ultra or Pixel 9a?+
Pixel 9a is 38g lighter — 224g vs 186g.
Is Zenfone 11 Ultra waterproof?+
Zenfone 11 Ultra has an IP68 rating.
Does Pixel 9a support 5G?+
Yes, Pixel 9a supports 5G.
Which has more RAM, Zenfone 11 Ultra or Pixel 9a?+
Zenfone 11 Ultra offers 16GB of RAM.
Which has a better camera, Zenfone 11 Ultra or Pixel 9a?+
Zenfone 11 Ultra has a 50 MP main camera vs 48 MP.
Spec-level deep dives
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