Between the iQOO 13 and OnePlus 15, the iQOO 13 comes out ahead in refresh rate and pixel density, while the OnePlus 15 wins on battery capacity and antutu. Overall, the iQOO 13 scores 75.3 and the OnePlus 15 scores 78.4 on our Mars Score.
Which should you buy?
The OnePlus 15 edges ahead on the Mars Score (75.3 vs 78.4), but the 3.1-point gap is small enough that the right pick comes down to which spec advantages matter to you.
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 refresh rate, pixel density, screen size.
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 battery capacity, antutu, weight, among others.
Both ship with comparable ram, main camera, 5g support, 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 Vivo - iQOO 13 wins
- ▲Refresh rate — 20.00% more. 144 Hz vs 120 Hz.
- ▲Pixel density — 13.33% more. 510 ppi vs 450 ppi.
- ▲Screen size — 0.59% more. 6.82 " vs 6.78 ".
Why OnePlus 15 wins
- ▲Battery capacity — 21.95% more. 7500 mAh vs 6150 mAh.
- ▲AnTuTu — 4.61% more. 2950000 vs 2820000.
- ▲Weight — 2.00 g less. 211 vs 213.
- ▲Promised OS updates: 5 (vs 4).
- ▲Wireless charging: 50 W vs 0 W.
Spec comparison
Design
| Spec | Vivo - iQOO 13 | OnePlus 15 |
|---|---|---|
| Weight | 213 g | 211 glead |
| Thickness | 8.13 mmlead | 8.3 mm |
| Water resistanceⓘ | IP69 | IP69 |
| Form factor | bar | bar |
Display
| Spec | Vivo - iQOO 13 | OnePlus 15 |
|---|---|---|
| Screen sizeⓘ | 6.82 "lead | 6.78 " |
| Pixel densityⓘ | 510 ppilead | 450 ppi |
| Refresh rateⓘ | 144 Hzlead | 120 Hz |
| Peak brightnessⓘ | 4500 nits | 4500 nits |
Performance
Cameras
| Spec | Vivo - iQOO 13 | OnePlus 15 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MP | 32 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Vivo - iQOO 13 | OnePlus 15 |
|---|---|---|
| Battery capacity | 6150 mAh | 7500 mAhlead |
| Wired chargingⓘ | 120 W | 120 W |
| Wireless chargingⓘ | 0 W | 50 Wlead |
Connectivity
| Spec | Vivo - iQOO 13 | OnePlus 15 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Vivo - iQOO 13 | OnePlus 15 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 4 years | 5 yearslead |
Frequently asked
Which has better battery, iQOO 13 or OnePlus 15?+
OnePlus 15 has 22.0% more battery — 6150 mAh vs 7500 mAh.
Which is lighter, iQOO 13 or OnePlus 15?+
OnePlus 15 is 2g lighter — 213g vs 211g.
Is iQOO 13 waterproof?+
iQOO 13 has an IP69 rating.
Does OnePlus 15 support 5G?+
Yes, OnePlus 15 supports 5G.
Which has a better camera, iQOO 13 or OnePlus 15?+
OnePlus 15 has a 50 MP main camera vs 50 MP.
Spec-level deep dives
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