iPhone 18 Pro vs Galaxy S26 Ultra
Rivals in the flagship smartphone class rarely match spec for spec, and the iPhone 18 Pro and the Galaxy S26 Ultra are no exception. By our tally, the Galaxy S26 Ultra leads 1 of 3 areas. The camera section is where it pulls furthest ahead of the iPhone 18 Pro.
At a glance
- Display Tie
- Memory & Storage iPhone 18 Pro wins
- Camera Galaxy S26 Ultra wins
- Price iPhone 18 Pro wins
- Memory & Storage6.4
- Camera3.5
- Memory & Storage4.5
- Camera10.0
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
-
The Galaxy S26 Ultra has a higher-resolution 200 MP main camera
The numbers aren’t close. The Galaxy S26 Ultra lists 200 MP for main camera, while the iPhone 18 Pro lists 48 MP. Megapixels are only one part of image quality, so treat this as a sign of detail potential, not a verdict on photos.
-
The Galaxy S26 Ultra has an extra rear camera
A clear win for the Galaxy S26 Ultra: 4 against 3. Few specs in this matchup are as one-sided. More cameras help most when each covers a different view, so check the table to see what the Galaxy S26 Ultra’s extra lens adds.
-
The Galaxy S26 Ultra has a 0.6-inch larger screen
The Galaxy S26 Ultra and the iPhone 18 Pro differ on screen size (6.9 in vs 6.3 in), and this is one to judge by personal preference. A larger display also means a larger phone overall, so this is as much about your hands and pockets as it is about the picture.
-
The iPhone 18 Pro has a bigger top storage option
Here the iPhone 18 Pro pulls well ahead of the Galaxy S26 Ultra, with 2 TB compared to 1 TB. The top storage option only matters if you plan to buy a high-capacity version, but it caps how much you can ever keep on the phone.
Design & Size
By the manufacturer’s measurements, the iPhone 18 Pro is the more compact phone, and the Galaxy S26 Ultra the larger one.
Design & Build
| Spec | iPhone 18 Pro | Galaxy S26 Ultra |
|---|---|---|
| Height | 5.91 in | N/A (not specified) |
| Width | 2.83 in | N/A (not specified) |
| Thickness | 0.34 in | N/A (not specified) |
| Weight | 7.44 oz | N/A (not specified) |
| Water & dust rating | IP68 | IP68 |
| Frame | Aluminum | N/A (not specified) |
Display
Too close to call
If display matters most to you, this section won’t make the decision for you: they’re level. So display is a non-factor here; move on to the areas where they actually differ.
Screen size
iPhone 18 Pro: 6.3 in Galaxy S26 Ultra: 6.9 in Screen size is personal. If you watch a lot on your phone, the extra area pays off; if you text one-handed on the go, compact is kinder.
Performance
The performance comparison is about what’s inside rather than how much. See the table for the iPhone 18 Pro’s and the Galaxy S26 Ultra’s entries.
Memory & Storage
iPhone 18 Pro leads
The iPhone 18 Pro squeezes out a win in the memory & storage section. The iPhone 18 Pro stands out with a bigger top storage option. Most buyers are fine with a base or middle tier, so this is a niche advantage, but a real one if you need it. Bottom line for memory & storage: the iPhone 18 Pro has the edge.
Max storage
iPhone 18 Pro: 2 TB Galaxy S26 Ultra: 1 TB Heavy video shooters and people with large offline libraries benefit from the iPhone 18 Pro’s bigger maximum.
Camera
Galaxy S26 Ultra leads
For camera, the verdict is easy: the Galaxy S26 Ultra leads, and not by a little. On the Galaxy S26 Ultra, you get a higher-resolution 200 MP main camera. More megapixels on the main camera allow bigger crops and more detail in good light, but sensor size and processing matter just as much. So if camera tops your list, lean toward the Galaxy S26 Ultra.
Main camera
iPhone 18 Pro: 48 MP Galaxy S26 Ultra: 200 MP The Galaxy S26 Ultra’s higher-resolution main sensor gives you more room to crop, which helps when you can’t get closer.
Rear cameras
iPhone 18 Pro: 3 Galaxy S26 Ultra: 4 The count alone doesn’t guarantee quality, but the Galaxy S26 Ultra gives you more lenses to choose from.
Battery & Charging
This area doesn’t reduce to a single number. The table shows the battery & charging details for both, so you can judge what matters to you.
Software & Updates
The software & updates data here comes as names and types, not scores. Check the table to see what each one uses.
Full Specifications
Display
| Spec | iPhone 18 Pro | Galaxy S26 Ultra |
|---|---|---|
| Screen size | 6.3 in | 6.9 in |
| Panel type | OLED, ProMotion 120 Hz (Super Retina XDR) | Dynamic AMOLED 2X |
| Resolution | 2622 x 1206 | 3120 x 1440 |
| Pixel density | 460 ppi | N/A (not specified) |
| Refresh rate | 120 Hz | N/A (not specified) |
| Peak brightness | 3,000 nits | N/A (not specified) |
| Always-on display | Yes | Yes |
Performance
| Spec | iPhone 18 Pro | Galaxy S26 Ultra |
|---|---|---|
| Chipset | A20 Pro | Snapdragon 8 Elite Gen 5 for Galaxy |
| CPU cores | 6 | N/A (not specified) |
| Process node | 2 nm | N/A (not specified) |
| RAM | N/A (not specified) | 12 GB |
Memory & Storage
| Spec | iPhone 18 Pro | Galaxy S26 Ultra |
|---|---|---|
| Base storage | 256 GB | 256 GB |
| Max storage | 2 TB (winner) | 1 TB |
| microSD slot | No | No |
Camera
| Spec | iPhone 18 Pro | Galaxy S26 Ultra |
|---|---|---|
| Main camera | 48 MP | 200 MP (winner) |
| Ultra-wide camera | 48 MP | N/A (not specified) |
| Telephoto camera | 48 MP | N/A (not specified) |
| Optical zoom | 4× | N/A (not specified) |
| Rear cameras | 3 | 4 (winner) |
| Front camera | 18 MP | N/A (not specified) |
| Max video | 4K120 Dolby Vision | N/A (not specified) |
Battery & Charging
| Spec | iPhone 18 Pro | Galaxy S26 Ultra |
|---|---|---|
| Battery capacity | N/A (not specified) | 5,000 mAh |
| Rated video playbackManufacturer rating | 36 h | N/A (not specified) |
| Wired charging | N/A (not specified) | 60 W |
| Wireless charging | 25 W | N/A (not specified) |
| Port | USB-C (USB 3, 10 Gb/s) | USB-C |
Software & Updates
| Spec | iPhone 18 Pro | Galaxy S26 Ultra |
|---|---|---|
| OS at launch | iOS 27 | Android 16 (One UI 8.5) |
| Promised OS updatesManufacturer commitment | N/A (not specified) | 7 years |
Design & Build
| Spec | iPhone 18 Pro | Galaxy S26 Ultra |
|---|---|---|
| Height | 5.91 in | N/A (not specified) |
| Width | 2.83 in | N/A (not specified) |
| Thickness | 0.34 in | N/A (not specified) |
| Weight | 7.44 oz | N/A (not specified) |
| Water & dust rating | IP68 | IP68 |
| Frame | Aluminum | N/A (not specified) |
Price
| Spec | iPhone 18 Pro | Galaxy S26 Ultra |
|---|---|---|
| Launch price | $1,199 (winner) | $1,300 |
“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
The Galaxy S26 Ultra asked only $101 more at launch. The Galaxy S26 Ultra’s premium of $101 isn’t just for the name; it brings a higher-resolution 200 MP main camera and an extra rear camera.
These are US launch prices, recorded September 2026; what you pay today may be higher or lower.
Which One Should You Buy?
Choose the iPhone 18 Pro if…
- you need as much on-device space as you can get (2 TB vs 1 TB top option)
- you’d rather keep $101 in your pocket
- you want the more compact phone
Choose the Galaxy S26 Ultra if…
- you want the higher-resolution main camera (200 MP vs 48 MP)
- you want more lenses to choose from (4 vs 3 rear cameras)
- you like more of everything, size included
Also Compared
Frequently Asked Questions
Which is better for most people, the iPhone 18 Pro or the Galaxy S26 Ultra?
The Galaxy S26 Ultra makes more sense overall. Consider the alternative only if your top priority is a bigger top storage option.
Is the iPhone 18 Pro bigger than the Galaxy S26 Ultra?
It’s the Galaxy S26 Ultra that is larger: 6.9 in, versus 5.91 × 2.83 × 0.34 in for the iPhone 18 Pro.
Does the iPhone 18 Pro perform better than the Galaxy S26 Ultra?
The iPhone 18 Pro is powered by A20 Pro and the Galaxy S26 Ultra by Snapdragon 8 Elite Gen 5 for Galaxy. Check independent benchmarks for how they compare in the apps you use.
Which has the better camera, the iPhone 18 Pro or the Galaxy S26 Ultra?
Going by the hardware, the Galaxy S26 Ultra comes out ahead: a higher-resolution 200 MP main camera and an extra rear camera.
Is the iPhone 18 Pro cheaper than the Galaxy S26 Ultra?
At launch, the iPhone 18 Pro undercut the Galaxy S26 Ultra by $101. These figures are as of September 2026, and street prices can change.
Executive Summary
If it were just about the brand, you wouldn’t be here. So let’s talk about the iPhone 18 Pro and the Galaxy S26 Ultra on their merits. If I had to name one reason, it’s that the Galaxy S26 Ultra brings a higher-resolution 200 MP main camera. In fairness to the iPhone 18 Pro, a bigger top storage option is a genuine strength.
Put simply, the iPhone 18 Pro suits people who care about memory & storage, while the Galaxy S26 Ultra suits people who put camera first.
My pick: I think most people will be happier with the Galaxy S26 Ultra, unless you’d rather have a bigger top storage option on the iPhone 18 Pro.
Personal opinion based on the data above. Your priorities may differ.