iPhone 15 Plus vs OnePlus 13
For flagship smartphone shoppers, the iPhone 15 Plus from Apple and the OnePlus 13 from OnePlus are two of the obvious candidates. If you only read one line, make it this: the OnePlus 13 takes 5 of 5 compared areas, and the display gap is the one to look at first.
At a glance
- Display OnePlus 13 wins
- Performance OnePlus 13 wins
- Memory & Storage OnePlus 13 wins
- Camera OnePlus 13 wins
- Battery & Charging OnePlus 13 wins
- Price iPhone 15 Plus wins
- Display2.6
- Memory & Storage1.8
- Camera1.7
- Display8.2
- Memory & Storage3.6
- Camera5.3
Spec scores (0 to 10) are calculated from manufacturer specs against other models in the same class. See how the formula works. They are not reviews or user ratings.
Key Differences
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The OnePlus 13 has a 120 Hz display instead of 60 Hz
Put simply, the OnePlus 13 is far ahead here: 120 Hz compared with 60 Hz. You notice refresh rate every time you scroll a feed or a web page, which is why the OnePlus 13 feels more fluid in everyday use.
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The OnePlus 13 has 125% higher peak brightness
The OnePlus 13’s 4,500 nits leaves the iPhone 15 Plus’s 2,000 nits well behind, so if this spec matters to you, the choice is easy. Peak figures are usually reached only in short bursts or small areas of the screen, but a higher ceiling still helps outdoor visibility.
-
The OnePlus 13 has 256 GB of base storage instead of 128 GB
Not a close call. The OnePlus 13 lists 256 GB and the iPhone 15 Plus lists 128 GB. That’s a substantial gap. The OnePlus 13 starts with more room, which means fewer “storage full” warnings and less time deleting old videos.
-
The OnePlus 13 has an extra rear camera
Among all the differences on this page, 3 against 2 is one of the most meaningful, and it favors the OnePlus 13. An extra rear camera usually means another focal length (ultra-wide, telephoto or macro) and more freedom in framing.
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The iPhone 15 Plus has a 0.32 oz lighter build
If everything else were equal, this small edge would favor the iPhone 15 Plus: 7.09 oz against 7.41 oz. The iPhone 15 Plus is easier on your wrist during long reading or gaming sessions.
Design & Size
- iPhone 15 Plus 6.33 in × 3.06 in × 0.31 in
- OnePlus 13 6.41 in × 3.01 in × 0.33 in
Their dimensions are close enough that size should be one of the last things you weigh. The iPhone 15 Plus weighs 0.32 oz less than the OnePlus 13. The iPhone 15 Plus keeps a lower profile: 0.03 in thinner than the OnePlus 13.
Design & Build
| Spec | iPhone 15 Plus | OnePlus 13 |
|---|---|---|
| Height | 6.33 in | 6.41 in |
| Width | 3.06 in | 3.01 in |
| Thickness | 0.31 in (winner) | 0.33 in |
| Weight | 7.09 oz (winner) | 7.41 oz |
| Water & dust rating | IP68 | IP68/IP69 (winner) |
| Frame | Aluminum | Aluminum |
Display
OnePlus 13 leads
For display, the verdict is easy: the OnePlus 13 leads, and not by a little. The OnePlus 13 delivers a 120 Hz display instead of 60 Hz. Smoother motion is one of the most visible display upgrades, and adaptive high-refresh panels can slow down on static content to save power. Weighing only display, the OnePlus 13 comes out ahead.
Refresh rate
iPhone 15 Plus: 60 Hz OnePlus 13: 120 Hz A higher refresh rate makes scrolling, animations and games look smoother. Once you’re used to it, a lower-rate screen can feel sluggish by comparison.
Peak brightness
iPhone 15 Plus: 2,000 nits OnePlus 13: 4,500 nits Peak brightness decides how readable the screen stays in direct sunlight and how punchy HDR content looks.
Performance
OnePlus 13 leads
Slight edge to the OnePlus 13 on performance. Most buyers could live happily with either. Choose the OnePlus 13 and you get a newer 3 nm chip process. Process numbers are partly marketing labels these days, so read this as a hint about efficiency rather than a verdict. If performance is your priority, the OnePlus 13 is the phone to pick.
Process node
iPhone 15 Plus: 4 nm OnePlus 13: 3 nm The OnePlus 13’s chip is built on a more advanced process. That usually points to efficiency gains, though chip design matters just as much.
CPU cores
iPhone 15 Plus: 6 OnePlus 13: 8 Core count on its own says little about speed; how the chip is designed and how fast each core runs matter more.
Memory & Storage
OnePlus 13 leads
This is one of the OnePlus 13’s strongest areas. On memory & storage, the iPhone 15 Plus falls well short. On the OnePlus 13, you get 256 GB of base storage instead of 128 GB. If you shoot a lot of video or keep music and maps offline, base storage is one of the specs you’ll feel most over the years. That makes the OnePlus 13 the natural choice for buyers focused on memory & storage.
Base storage
iPhone 15 Plus: 128 GB OnePlus 13: 256 GB Base storage is what you get without paying extra. Photos, videos and apps add up quickly, so more space at the entry price is real value.
Camera
OnePlus 13 leads
The iPhone 15 Plus has a tough time in the camera section, where the OnePlus 13 pulls well ahead. Point to the OnePlus 13 for an extra rear camera. The count alone doesn’t guarantee quality, but the OnePlus 13 gives you more lenses to choose from. Prioritize camera, and the OnePlus 13 is where you should land.
Rear cameras
iPhone 15 Plus: 2 OnePlus 13: 3 More cameras help most when each covers a different view, so check the table to see what the OnePlus 13’s extra lens adds.
Ultra-wide camera
iPhone 15 Plus: 12 MP OnePlus 13: 50 MP Ultra-wide cameras often lag behind the main one, so the OnePlus 13’s higher resolution helps narrow that gap.
Battery & Charging
OnePlus 13 leads
If you’re keeping score, the battery & charging point goes narrowly to the OnePlus 13. The OnePlus 13 wins here with faster 50 W wireless charging. Faster wireless charging makes a pad or stand more practical as your main way to top up. For battery & charging, the OnePlus 13 is the one to beat.
Wireless charging
iPhone 15 Plus: 15 W OnePlus 13: 50 W Wireless charging is usually slower than a cable, so this edge matters mainly to people who value the convenience.
Software & Updates
For software & updates, the spec sheet lists components and formats rather than figures we can rank. The table shows what the iPhone 15 Plus and the OnePlus 13 each bring.
Full Specifications
Display
| Spec | iPhone 15 Plus | OnePlus 13 |
|---|---|---|
| Screen size | 6.7 in | 6.8 in |
| Panel type | OLED (Super Retina XDR) | LTPO AMOLED |
| Resolution | 2796 x 1290 | 3168 x 1440 |
| Pixel density | 460 ppi | 510 ppi (winner) |
| Refresh rate | 60 Hz | 120 Hz (winner) |
| Peak brightness | 2,000 nits | 4,500 nits (winner) |
| Always-on display | No | Yes (winner) |
Performance
| Spec | iPhone 15 Plus | OnePlus 13 |
|---|---|---|
| Chipset | A16 Bionic | Snapdragon 8 Elite |
| CPU cores | 6 | 8 |
| Process node | 4 nm | 3 nm (winner) |
| RAM | N/A (not specified) | 12 GB |
Memory & Storage
| Spec | iPhone 15 Plus | OnePlus 13 |
|---|---|---|
| Base storage | 128 GB | 256 GB (winner) |
| Max storage | 512 GB | 512 GB |
| microSD slot | No | No |
Camera
| Spec | iPhone 15 Plus | OnePlus 13 |
|---|---|---|
| Main camera | 48 MP | 50 MP |
| Ultra-wide camera | 12 MP | 50 MP (winner) |
| Telephoto camera | N/A (not specified) | 50 MP |
| Optical zoom | N/A (not specified) | 3× |
| Rear cameras | 2 | 3 (winner) |
| Front camera | 12 MP | 32 MP (winner) |
| Max video | 4K60 Dolby Vision | 8K30 |
Battery & Charging
| Spec | iPhone 15 Plus | OnePlus 13 |
|---|---|---|
| Battery capacity | N/A (not specified) | 6,000 mAh |
| Rated video playbackManufacturer rating | 26 h | N/A (not specified) |
| Wired charging | N/A (not specified) | 80 W |
| Wireless charging | 15 W | 50 W (winner) |
| Port | USB-C (USB 2) | USB-C (USB 3.2 Gen 1) |
Software & Updates
| Spec | iPhone 15 Plus | OnePlus 13 |
|---|---|---|
| OS at launch | iOS 17 | OxygenOS 15 (Android 15) |
| Promised OS updatesManufacturer commitment | N/A (not specified) | 4 years |
Design & Build
| Spec | iPhone 15 Plus | OnePlus 13 |
|---|---|---|
| Height | 6.33 in | 6.41 in |
| Width | 3.06 in | 3.01 in |
| Thickness | 0.31 in (winner) | 0.33 in |
| Weight | 7.09 oz (winner) | 7.41 oz |
| Water & dust rating | IP68 | IP68/IP69 (winner) |
| Frame | Aluminum | Aluminum |
Price
| Spec | iPhone 15 Plus | OnePlus 13 |
|---|---|---|
| Launch price | $899 | $900 |
“N/A” means the manufacturer does not specify the value or we could not confirm it. Figures marked “manufacturer rating” are the maker’s own claims, not our measurements.
Price & Value
Price barely moves the needle here: the OnePlus 13 launched $1 higher. The OnePlus 13 justifies part of its $1 premium with a 120 Hz display instead of 60 Hz and 125% higher peak brightness.
Prices shown are US launch prices as of January 2025. Retail prices change often, so it’s worth checking current offers.
Which One Should You Buy?
Choose the iPhone 15 Plus if…
- you want the lighter phone (7.09 oz vs 7.41 oz)
- you want the slimmer phone (0.31 in vs 0.33 in)
- you’d rather keep $1 in your pocket
Choose the OnePlus 13 if…
- you want smoother scrolling (120 Hz vs 60 Hz)
- you want the screen that stays readable on sunny days (4,500 nits vs 2,000 nits)
- you want more storage without paying for an upgrade (256 GB vs 128 GB)
- you like switching between focal lengths (3 vs 2 cameras)
Also Compared
Frequently Asked Questions
Should I buy the iPhone 15 Plus or the OnePlus 13?
We’d point most buyers to the OnePlus 13. The main exception is if you specifically want a 0.32 oz lighter build, where the iPhone 15 Plus has the edge.
Is the iPhone 15 Plus bigger than the OnePlus 13?
Size is essentially a tie. The official dimensions of the iPhone 15 Plus and the OnePlus 13 differ only marginally.
Which is faster, the iPhone 15 Plus or the OnePlus 13?
The OnePlus 13 should be the quicker of the two, with a newer 3 nm chip process on its side.
Which has the better camera, the iPhone 15 Plus or the OnePlus 13?
The OnePlus 13 leads on camera specs thanks to an extra rear camera and a sharper 50 MP ultra-wide. Processing and personal taste also play a big part in photos.
Is the iPhone 15 Plus’s display better than the OnePlus 13’s?
The OnePlus 13 has the stronger display on paper, with a 120 Hz display instead of 60 Hz and 125% higher peak brightness.
Is the iPhone 15 Plus cheaper than the OnePlus 13?
The OnePlus 13 launched at $1 more than the iPhone 15 Plus, based on prices as of January 2025.
Executive Summary
The iPhone 15 Plus and the OnePlus 13 are aimed at each other, and I think the gaps between them are more interesting than the headlines. The biggest reason I lean toward the OnePlus 13 is simple: it has a 120 Hz display instead of 60 Hz. Plus, the OnePlus 13 gets 256 GB of base storage instead of 128 GB, which I wouldn’t overlook. That said, the iPhone 15 Plus answers with a 0.32 oz lighter build, which some people will value more.
If your days lean on portability, I’d pick the iPhone 15 Plus; if they lean on display, the OnePlus 13.
My pick: the OnePlus 13. The iPhone 15 Plus only comes out ahead if having a 0.32 oz lighter build matters more to you than the rest.
Personal opinion based on the data above. Your priorities may differ.