Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Honor - Magic V3 | OnePlus 15 |
|---|---|---|
| Wired charging | 66 W | 120 W |
| Front camera | 20 MP | 32 MP |
| Battery capacity | 5150 mAh | 7500 mAh |
| AnTuTu | 2050000 | 2950000 |
| Screen size | 7.92 " | 6.78 " |
| Weight | 226 g | 211 g |
Between the Magic V3 and OnePlus 15, the Magic V3 comes out ahead in screen size / water resistance, while the OnePlus 15 wins on wired charging / front camera. Overall, the Magic V3 scores 70.1 and the OnePlus 15 scores 76.7 on our Mars Score.
Which should you buy?
The OnePlus 15 edges ahead on the Mars Score (70.1 vs 76.7), but the 6.6-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Magic V3 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 screen size, water resistance. The single most decisive one: Screen size — 16.81% more. 7.92 " vs 6.78 ".
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. Its strongest claims are wired charging, front camera, battery capacity, among others. The single most decisive one: Wired charging — 81.82% more. 120 W vs 66 W.
Both ship with comparable ram, main camera, refresh rate, 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: Honor - Magic V3 or OnePlus 15?
OnePlus 15 leads the current Mars Score by 6.6 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 Honor - Magic V3 if…
Honor - Magic V3 has the measurable edge on screen size in, ip rating.
Choose OnePlus 15 if…
OnePlus 15 has the measurable edge on wired charging w, front cam mp, battery capacity mah.
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 Honor - Magic V3 wins
- ▲Screen size — 16.81% more. 7.92 " vs 6.78 ".
- ▲Water resistance: IPX8 (vs IP69).
Why OnePlus 15 wins
- ▲Wired charging — 81.82% more. 120 W vs 66 W.
- ▲Front camera — 60.00% more. 32 MP vs 20 MP.
- ▲Battery capacity — 45.63% more. 7500 mAh vs 5150 mAh.
- ▲AnTuTu — 43.90% more. 2950000 vs 2050000.
- ▲Weight — 15.00 g less. 211 vs 226.
- ▲Pixel density — 11.94% more. 450 ppi vs 402 ppi.
Spec comparison
Design
| Spec | Honor - Magic V3 | OnePlus 15 |
|---|---|---|
| Weight | 226 g | 211 glead |
| Thickness | 9.2 mm | 8.3 mmlead |
| Water resistanceⓘ | IPX8lead | IP69 |
| Form factor | foldable_booklead | bar |
Display
| Spec | Honor - Magic V3 | OnePlus 15 |
|---|---|---|
| Screen size | 7.92 "lead | 6.78 " |
| Pixel densityⓘ | 402 ppi | 450 ppilead |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 5000 nitslead | 4500 nits |
Performance
| Spec | Honor - Magic V3 | OnePlus 15 |
|---|---|---|
| RAMⓘ | 16 GB | 16 GB |
| Storageⓘ | 512 GB | 512 GB |
| AnTuTuⓘ | 2050000 | 2950000lead |
| CPU total clockⓘ | 21.4 GHz | 23.6 GHzlead |
Cameras
| Spec | Honor - Magic V3 | OnePlus 15 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 20 MP | 32 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Honor - Magic V3 | OnePlus 15 |
|---|---|---|
| Battery capacityⓘ | 5150 mAh | 7500 mAhlead |
| Wired chargingⓘ | 66 W | 120 Wlead |
| Wireless chargingⓘ | 50 W | 50 W |
Connectivity
| Spec | Honor - Magic V3 | OnePlus 15 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Honor - Magic V3 | OnePlus 15 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 5 years | 5 years |
Frequently asked
Which has better battery, Magic V3 or OnePlus 15?+
OnePlus 15 has 45.6% more battery — 5150 mAh vs 7500 mAh.
Which is lighter, Magic V3 or OnePlus 15?+
OnePlus 15 is 15g lighter — 226g vs 211g.
Is Magic V3 waterproof?+
Magic V3 has an IPX8 rating.
Does OnePlus 15 support 5G?+
Yes, OnePlus 15 supports 5G.
Which has a better camera, Magic V3 or OnePlus 15?+
OnePlus 15 has a 50 MP main camera vs 50 MP.