Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Vivo - iQOO 13 | ASUS - ROG Phone 9 |
|---|---|---|
| Wired charging | 120 W | 65 W |
| Pixel density | 510 ppi | 388 ppi |
| Refresh rate | 144 Hz | 185 Hz |
| Weight | 213 g | 227 g |
| AnTuTu | 2820000 | 2580000 |
| Battery capacity | 6150 mAh | 5800 mAh |
Between the iQOO 13 and ROG Phone 9, the iQOO 13 comes out ahead in wired charging / pixel density, while the ROG Phone 9 wins on refresh rate / headphone jack. Overall, the iQOO 13 scores 73.5 and the ROG Phone 9 scores 72.4 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (73.5 vs 72.4). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the iQOO 13 if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are wired charging, pixel density, weight, among others. The single most decisive one: Wired charging — 84.62% more. 120 W vs 65 W.
Pick the ROG Phone 9 if you care most about refresh rate / headphone jack. Its strongest claims are refresh rate, headphone jack, wireless charging. The single most decisive one: Refresh rate — 28.47% more. 185 Hz vs 144 Hz.
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: Vivo - iQOO 13 or ASUS - ROG Phone 9?
Vivo - iQOO 13 leads the current Mars Score by 1.1 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 Vivo - iQOO 13 if…
Vivo - iQOO 13 has the measurable edge on wired charging w, pixel density ppi, weight g.
Choose ASUS - ROG Phone 9 if…
ASUS - ROG Phone 9 has the measurable edge on refresh rate hz, has headphone jack, wireless charging w.
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 Vivo - iQOO 13 wins
- ▲Wired charging — 84.62% more. 120 W vs 65 W.
- ▲Pixel density — 31.44% more. 510 ppi vs 388 ppi.
- ▲Weight — 14.00 g less. 213 vs 227.
- ▲AnTuTu — 9.30% more. 2820000 vs 2580000.
- ▲Battery capacity — 6.03% more. 6150 mAh vs 5800 mAh.
- ▲Screen size — 0.59% more. 6.82 " vs 6.78 ".
- ▲Water resistance: IP69 (vs IP68).
- ▲Promised OS updates: 4 (vs 3).
Why ASUS - ROG Phone 9 wins
- ▲Refresh rate — 28.47% more. 185 Hz vs 144 Hz.
- ▲Has Headphone jack.
- ▲Wireless charging: 15 W vs 0 W.
Spec comparison
Design
| Spec | Vivo - iQOO 13 | ASUS - ROG Phone 9 |
|---|---|---|
| Weight | 213 glead | 227 g |
| Thickness | 8.13 mmlead | 8.9 mm |
| Water resistanceⓘ | IP69lead | IP68 |
| Form factor | bar | bar |
Display
| Spec | Vivo - iQOO 13 | ASUS - ROG Phone 9 |
|---|---|---|
| Screen size | 6.82 "lead | 6.78 " |
| Pixel densityⓘ | 510 ppilead | 388 ppi |
| Refresh rateⓘ | 144 Hz | 185 Hzlead |
| Peak brightnessⓘ | 4500 nitslead | 2500 nits |
Performance
| Spec | Vivo - iQOO 13 | ASUS - ROG Phone 9 |
|---|---|---|
| RAMⓘ | 16 GB | 16 GB |
| Storageⓘ | 512 GB | 512 GB |
| AnTuTuⓘ | 2820000lead | 2580000 |
| CPU total clockⓘ | 22.6 GHzlead | 22.0 GHz |
Cameras
| Spec | Vivo - iQOO 13 | ASUS - ROG Phone 9 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MP | 32 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Vivo - iQOO 13 | ASUS - ROG Phone 9 |
|---|---|---|
| Battery capacityⓘ | 6150 mAhlead | 5800 mAh |
| Wired chargingⓘ | 120 Wlead | 65 W |
| Wireless chargingⓘ | 0 W | 15 Wlead |
Connectivity
| Spec | Vivo - iQOO 13 | ASUS - ROG Phone 9 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | truelead |
| microSD slot | false | false |
Operating System
| Spec | Vivo - iQOO 13 | ASUS - ROG Phone 9 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 4 yearslead | 3 years |
Frequently asked
Which has better battery, iQOO 13 or ROG Phone 9?+
iQOO 13 has 6.0% more battery — 6150 mAh vs 5800 mAh.
Which is lighter, iQOO 13 or ROG Phone 9?+
iQOO 13 is 14g lighter — 213g vs 227g.
Is iQOO 13 waterproof?+
iQOO 13 has an IP69 rating.
Does ROG Phone 9 support 5G?+
Yes, ROG Phone 9 supports 5G.
Which has a better camera, iQOO 13 or ROG Phone 9?+
ROG Phone 9 has a 50 MP main camera vs 50 MP.