COMPARISON · NOVEMBER 2026 · iPhone 18 Pro · 18 Pro Max · iPhone Duo
iPhone 18 Pro, 18 Pro Max and iPhone Duo compared. All three 2026 iPhones: sizes, prices, differences and which case fits.
Apple’s three 2026 iPhones side by side: exact sizes and weight, screens, US prices, and which case fits which phone.
Design an iPhone 18 Pro caseIn diesem Ratgeber
Das Wichtigste in Kürze
- There are three 2026 iPhone models so far: iPhone 18 Pro, iPhone 18 Pro Max and the foldable iPhone Duo. A standard iPhone 18 was not announced at the September event.
- Screen sizes: iPhone 18 Pro 6.3", iPhone 18 Pro Max 6.9", iPhone Duo 5.4" outside and 7.6" when opened.
- US starting prices: $1,199 (18 Pro), $1,299 (18 Pro Max), $1,999 (iPhone Duo, 256 GB).
- The Duo is the heaviest at 254 g, but only 5 g more than the 18 Pro Max (249 g). The 18 Pro is the lightest at 211 g.
Alle Modelle
iPhone 18 models in order
How many iPhone 18 models are there? As of November 2026, Apple sells two iPhone 18 models, the 18 Pro and the 18 Pro Max, plus the iPhone Duo, which launched at the same event. All three were announced on September 9, 2026.
| Modell | Display | Size (H × W × D) | Gewicht | US-Einführungspreis |
|---|---|---|---|---|
| iPhone 18 Pro | 6.3" | 150.0 × 71.9 × 8.75 mm | 211 g (7.44 oz) | $1,199 |
| iPhone 18 Pro Max | 6.9" | 163.4 × 78.0 × 8.75 mm | 249 g (8.78 oz) | $1,299 |
| iPhone Duo (closed) | 5.4" outer | 117.8 × 84.1 × 11.3 mm | 254 g (8.96 oz) | $1,999 |
| iPhone Duo (open) | 7.6" inner | 117.8 × 164.6 × 5.2 mm | 254 g (8.96 oz) |
The iPhone 18 Pro and 18 Pro Max went on sale on September 18, 2026. Both use the A20 Pro chip.
Größen
iPhone 18 sizes: Pro vs Pro Max vs Duo
- iPhone 18 Pro is the one-hand phone of the three: 150.0 mm tall, 71.9 mm wide and 211 g.
- iPhone 18 Pro Max is 13.4 mm taller and 6.1 mm wider than the Pro, and 38 g heavier. Both are 8.75 mm thick.
- iPhone Duo closed is much shorter than either Pro (117.8 mm) but wider (84.1 mm) and thicker (11.3 mm). Opened, it is 164.6 mm wide and only 5.2 mm thin.
In a pocket the closed Duo takes about the space of a short, thick phone. In the hand it weighs almost exactly what an 18 Pro Max weighs.
Pro vs Pro Max
iPhone 18 Pro vs iPhone 18 Pro Max
| iPhone 18 Pro | iPhone 18 Pro Max | |
|---|---|---|
| Display | 6.3", 2622 × 1206 | 6.9", 2868 × 1320 |
| Akku | 4,056 mAh | 5,391 mAh |
| Video playback (Apple rating) | up to 36 hours | up to 45 hours |
| Gewicht | 211 g | 249 g |
| US price from | $1,199 | $1,299 |
The chip and the thickness are the same. You pay $100 more for the bigger screen and the longer battery life, and you carry 38 g more. The 18 Pro Max is the heaviest non-folding iPhone so far.
The foldable
iPhone Duo vs iPhone 18 Pro
- Two screens: a 5.4" outer display and a 7.6" inner display that folds open like a book. The 18 Pro has one 6.3" display.
- Shape: the Duo screens are close to a 1.4:1 shape, much squarer than the tall 18 Pro. Photos and wallpapers crop differently.
- Thickness: 5.2 mm open, the thinnest iPhone so far, and 11.3 mm closed.
- Price: $1,999 for 256 GB, which is $800 more than the iPhone 18 Pro. Storage goes up to 2 TB.
Other foldables
iPhone Duo price vs Galaxy Z Fold and Pixel Fold
| Foldable | US starting price |
|---|---|
| iPhone Duo | $1,999 |
| Samsung Galaxy Z Fold 8 | $1,899 |
| Samsung Galaxy Z Fold 8 Ultra | about $2,099 |
| Google Pixel 10 Pro Fold | $1,799 |
Before launch, analysts expected the foldable iPhone to cost $2,400 or more. At $1,999 it sits between the two Galaxy Z Fold 8 models.
Hüllen
Which case fits which 2026 iPhone?
Each of the three phones needs its own case:
- The iPhone 18 Pro and 18 Pro Max are different sizes, so a Pro case does not fit a Pro Max.
- The iPhone 18 Pro is almost the same size as the iPhone 17 Pro, but we make a separate case for each model. Order the case for the exact phone you have.
- The iPhone Duo folds, so its case is built differently from a one-piece iPhone case.
We print custom photo cases for all three: the iPhone 18 Pro und iPhone 18 Pro Max in five types (Soft TPU, Hybrid, MagSafe, Snap and MagSafe Tough), and the iPhone Duo in three (Soft TPU, Hybrid and MagSafe). Upload a photo, place it on your model and see the case before you order. Not sure which type to choose? See all case types compared.
iPhone Duo cases: we print on the outer back panel, the half with the camera bar that faces out when the phone is closed. The case leaves the hinge free, so the phone still folds normally.
Sources
Where the numbers come from
- Apple: iPhone 18 Pro and 18 Pro Max technical specifications
- MacRumors: iPhone 18 Pro vs iPhone Duo buyer's guide (Duo dimensions and displays)
- Engadget: everything Apple announced on September 9, 2026 (prices and dates)
Sizes, weights and prices were checked on November 11, 2026. Prices are US starting prices at launch.
Häufige Fragen
How many iPhone 18 models are there?
Two so far: iPhone 18 Pro and iPhone 18 Pro Max. Apple launched the foldable iPhone Duo at the same event, so the 2026 lineup has three phones. A standard iPhone 18 was not announced in September 2026.
What are the screen sizes of the iPhone 18 Pro and Pro Max?
The iPhone 18 Pro has a 6.3-inch display and the iPhone 18 Pro Max a 6.9-inch display.
How big is the iPhone Duo?
Closed it measures 117.8 × 84.1 × 11.3 mm. Open it measures 117.8 × 164.6 × 5.2 mm with a 7.6-inch inner display. It weighs 254 g.
How much does the iPhone Duo cost?
It starts at $1,999 in the US for 256 GB. The iPhone 18 Pro starts at $1,199 and the iPhone 18 Pro Max at $1,299.
Does an iPhone 18 Pro case fit the iPhone 18 Pro Max?
No. The Pro Max is 13.4 mm taller and 6.1 mm wider, so each needs its own case.
Can I make a custom case for the iPhone 18 Pro or iPhone Duo?
Yes. Upload your photo in our designer. For the iPhone 18 Pro and 18 Pro Max choose Soft TPU, Hybrid, MagSafe, Snap or MagSafe Tough; for the iPhone Duo choose Soft TPU, Hybrid or MagSafe.
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