Between the Find X8 and ROG Phone 9, the Find X8 comes out ahead in wireless charging and weight, while the ROG Phone 9 wins on refresh rate and ram. Overall, the Find X8 scores 70.9 and the ROG Phone 9 scores 75.1 on our Mars Score.
Which should you buy?
The ROG Phone 9 edges ahead on the Mars Score (70.9 vs 75.1), but the 4.2-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Find X8 if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are wireless charging, weight, wired charging, among others.
Pick the ROG Phone 9 if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. Its strongest claims are refresh rate, ram, battery capacity, among others.
Both ship with comparable main camera, 5g support, water resistance, so those specs don't 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 tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Oppo - Find X8 wins
- ▲Wireless charging — 233.33% more. 50 W vs 15 W.
- ▲Weight — 34.00 g less. 193 vs 227.
- ▲Wired charging — 23.08% more. 80 W vs 65 W.
- ▲Pixel density — 18.56% more. 460 ppi vs 388 ppi.
- ▲Promised OS updates: 5 (vs 3).
Why ASUS - ROG Phone 9 wins
- ▲Refresh rate — 54.17% more. 185 Hz vs 120 Hz.
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲Battery capacity — 3.02% more. 5800 mAh vs 5630 mAh.
- ▲Screen size — 2.88% more. 6.78 " vs 6.59 ".
- ▲Has Headphone jack.
Spec comparison
Design
| Spec | Oppo - Find X8 | ASUS - ROG Phone 9 |
|---|---|---|
| Weight | 193 glead | 227 g |
| Thickness | 7.85 mmlead | 8.9 mm |
| Water resistanceⓘ | IP68 | IP68 |
| Form factor | bar | bar |
Display
| Spec | Oppo - Find X8 | ASUS - ROG Phone 9 |
|---|---|---|
| Screen sizeⓘ | 6.59 " | 6.78 "lead |
| Pixel densityⓘ | 460 ppilead | 388 ppi |
| Refresh rateⓘ | 120 Hz | 185 Hzlead |
| Peak brightnessⓘ | 4500 nitslead | 2500 nits |
Performance
Cameras
| Spec | Oppo - Find X8 | ASUS - ROG Phone 9 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MP | 32 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Oppo - Find X8 | ASUS - ROG Phone 9 |
|---|---|---|
| Battery capacity | 5630 mAh | 5800 mAhlead |
| Wired chargingⓘ | 80 Wlead | 65 W |
| Wireless chargingⓘ | 50 Wlead | 15 W |
Connectivity
| Spec | Oppo - Find X8 | ASUS - ROG Phone 9 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | truelead |
| microSD slot | false | false |
Operating System
| Spec | Oppo - Find X8 | ASUS - ROG Phone 9 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 5 yearslead | 3 years |
Frequently asked
Which has better battery, Find X8 or ROG Phone 9?+
ROG Phone 9 has 3.0% more battery — 5630 mAh vs 5800 mAh.
Which is lighter, Find X8 or ROG Phone 9?+
Find X8 is 34g lighter — 193g vs 227g.
Is Find X8 waterproof?+
Find X8 has an IP68 rating.
Does ROG Phone 9 support 5G?+
Yes, ROG Phone 9 supports 5G.
Which has more RAM, Find X8 or ROG Phone 9?+
ROG Phone 9 offers 16GB of RAM.
Which has a better camera, Find X8 or ROG Phone 9?+
ROG Phone 9 has a 50 MP main camera vs 50 MP.
Spec-level deep dives
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