Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | OnePlus 15 | Oppo - Find X8 |
|---|---|---|
| Wired charging | 120 W | 80 W |
| RAM | 16 GB | 12 GB |
| Battery capacity | 7500 mAh | 5630 mAh |
| Weight | 211 g | 193 g |
| AnTuTu | 2950000 | 2580000 |
| Screen size | 6.78 " | 6.59 " |
Between the OnePlus 15 and Find X8, the OnePlus 15 comes out ahead in wired charging / ram, while the Find X8 wins on weight / pixel density. Overall, the OnePlus 15 scores 76.7 and the Find X8 scores 70.9 on our Mars Score.
Which should you buy?
The OnePlus 15 edges ahead on the Mars Score (76.7 vs 70.9), but the 5.8-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the OnePlus 15 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 wired charging, ram, battery capacity, among others. The single most decisive one: Wired charging — 50.00% more. 120 W vs 80 W.
Pick the Find X8 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. The single most decisive one: Weight — 18.00 g less. 193 vs 211.
Both ship with comparable main camera, refresh rate, 5g support, so those specs do not separate the two — focus on the differences below.
Bottom line: the OnePlus 15 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: OnePlus 15 or Oppo - Find X8?
OnePlus 15 leads the current Mars Score by 5.8 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 OnePlus 15 if…
OnePlus 15 has the measurable edge on wired charging w, ram gb, battery capacity mah.
Choose Oppo - Find X8 if…
Oppo - Find X8 has the measurable edge on weight g, 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 OnePlus 15 wins
- ▲Wired charging — 50.00% more. 120 W vs 80 W.
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲Battery capacity — 33.21% more. 7500 mAh vs 5630 mAh.
- ▲AnTuTu — 14.34% more. 2950000 vs 2580000.
- ▲Screen size — 2.88% more. 6.78 " vs 6.59 ".
- ▲Water resistance: IP69 (vs IP68).
Why Oppo - Find X8 wins
- ▲Weight — 18.00 g less. 193 vs 211.
- ▲Pixel density — 2.22% more. 460 ppi vs 450 ppi.
Spec comparison
Design
| Spec | OnePlus 15 | Oppo - Find X8 |
|---|---|---|
| Weight | 211 g | 193 glead |
| Thickness | 8.3 mm | 7.85 mmlead |
| Water resistanceⓘ | IP69lead | IP68 |
| Form factor | bar | bar |
Display
| Spec | OnePlus 15 | Oppo - Find X8 |
|---|---|---|
| Screen size | 6.78 "lead | 6.59 " |
| Pixel densityⓘ | 450 ppi | 460 ppilead |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 4500 nits | 4500 nits |
Performance
| Spec | OnePlus 15 | Oppo - Find X8 |
|---|---|---|
| RAMⓘ | 16 GBlead | 12 GB |
| Storageⓘ | 512 GBlead | 256 GB |
| AnTuTuⓘ | 2950000lead | 2580000 |
| CPU total clockⓘ | 23.6 GHzlead | 22.4 GHz |
Cameras
| Spec | OnePlus 15 | Oppo - Find X8 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MP | 32 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | OnePlus 15 | Oppo - Find X8 |
|---|---|---|
| Battery capacityⓘ | 7500 mAhlead | 5630 mAh |
| Wired chargingⓘ | 120 Wlead | 80 W |
| Wireless chargingⓘ | 50 W | 50 W |
Connectivity
| Spec | OnePlus 15 | Oppo - Find X8 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | OnePlus 15 | Oppo - Find X8 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 5 years | 5 years |
Frequently asked
Which has better battery, OnePlus 15 or Find X8?+
OnePlus 15 has 33.2% more battery — 7500 mAh vs 5630 mAh.
Which is lighter, OnePlus 15 or Find X8?+
Find X8 is 18g lighter — 211g vs 193g.
Is OnePlus 15 waterproof?+
OnePlus 15 has an IP69 rating.
Does Find X8 support 5G?+
Yes, Find X8 supports 5G.
Which has more RAM, OnePlus 15 or Find X8?+
OnePlus 15 offers 16GB of RAM.
Which has a better camera, OnePlus 15 or Find X8?+
Find X8 has a 50 MP main camera vs 50 MP.