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iPhone Duo (folded) vs iPhone 18 Pro

Quick answer

The iPhone Duo (folded) provides a much wider, blockier grip than the slender iPhone 18 Pro.

Easier one-handed: iPhone 18 Pro

Pocket: iPhone 18 Pro

Weight difference: Noticeable

  • The iPhone Duo (folded) creates a distinctly broader handhold that requires two hands to manage comfortably compared to the slab form.
  • Carrying the iPhone Duo (folded) adds noticeable heft and bulk in a pocket relative to the trimmer iPhone 18 Pro.
  • Daily reading and media viewing distribute differently across the wide, stubby screen of the iPhone Duo (folded) versus the tall slab.
  • iPhone Duo (folded)from $1,999 at launch, ships 23 October.
  • iPhone 18 Profrom $1,199 at launch, ships 18 September.
HeightWidthDepthWeightDuo117.8 millimetres4.64 inches84.1 millimetres3.31 inches11.30 millimetres0.44 inches254 grams8.96 ounces18 Pro150.0 millimetres, 32.2 millimetres more5.91 inches, 1.27 inches more71.9 millimetres, 12.2 millimetres less2.83 inches, 0.48 inches less8.75 millimetres, 2.55 millimetres less0.34 inches, 0.10 inches less211 grams, 43 grams less7.44 ounces, 1.52 ounces less

Height: Duo 117.8 millimetres, 18 Pro 150.0 millimetres.Height: Duo 4.64 inches, 18 Pro 5.91 inches.Width: Duo 84.1 millimetres, 18 Pro 71.9 millimetres.Width: Duo 3.31 inches, 18 Pro 2.83 inches.Depth: Duo 11.30 millimetres, 18 Pro 8.75 millimetres.Depth: Duo 0.44 inches, 18 Pro 0.34 inches.Weight: Duo 254 grams, 18 Pro 211 grams.Weight: Duo 8.96 ounces, 18 Pro 7.44 ounces.

Specifications

Specifications for iPhone Duo (folded), iPhone 18 Pro. Differences are given against iPhone Duo (folded).
SpecificationDuo18 Pro
Height117.8 millimetres4.64 inches150.0 millimetres, 32.2 millimetres more5.91 inches, 1.27 inches more
Width84.1 millimetres3.31 inches71.9 millimetres, 12.2 millimetres less2.83 inches, 0.48 inches less
Depth11.30 millimetres0.44 inches8.75 millimetres, 2.55 millimetres less0.34 inches, 0.10 inches less
Weight254 grams8.96 ounces211 grams, 43 grams less7.44 ounces, 1.52 ounces less
Volume111.9 cubic centimetres6.83 cubic inches94.4 cubic centimetres, 17.6 cubic centimetres less5.76 cubic inches, 1.07 cubic inches less
Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure.89 percent89 percent, 1 percent more
Display size — Screen size is always quoted in inches.5.4 inches6.3 inches, 0.9 inches more
Resolution1398 × 20341206 × 2622
Pixel density457 pixels per inch458 pixels per inch, 1 pixels per inch more
CutoutDynamic IslandDynamic Island
Rear main48MP Fusion f/1.648MP Fusion, variable aperture f/1.48-f/4.0
Rear ultra-wide48MP Ultra Wide f/2.248MP Fusion f/2.2
Rear telephoto48MP Fusion 100mm (4x optical, 8x optical-quality)
Front camera12MP Center Stage f/2.2 (outer), under-display FaceTime f/1.8 (inner)18MP Center Stage f/1.9
ChipA20 ProA20 Pro
Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity.44 hrs36 hrs
PortUSB-CUSB-C
Wireless5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem
Water resistanceIP68 (6m for 30 min)IP68 (6m for 30 min)
Storage256 GB – 2 TB256 GB – 2 TB
Launch price — Base configuration at launch, in US dollars.1,999 dollars1,199 dollars, 800 dollars less
ReleasedOct 2026Sep 2026
StatusCurrentCurrent

Questions about these phones

How does the one-handed reach compare between the iPhone Duo (folded) and iPhone 18 Pro?

The iPhone 18 Pro offers a much narrower body that fits comfortably in one hand, whereas the iPhone Duo (folded) is significantly wider and demands a two-handed grip.

Which device is easier to carry in a pocket?

The iPhone 18 Pro slides easily into pockets, while the thicker and heavier iPhone Duo (folded) feels much bulkier.

How do the weights of the iPhone Duo (folded) and iPhone 18 Pro compare?

The iPhone Duo (folded) weighs 254 g, making it noticeably heavier than the 211 g iPhone 18 Pro.

What are the screen sizes of the iPhone Duo (folded) and iPhone 18 Pro?

The iPhone Duo (folded) features a 5.4-inch display when closed, compared to the 6.3-inch screen on the iPhone 18 Pro.

How do the overall footprints differ?

The iPhone Duo (folded) measures 117.8 mm tall by 84.1 mm wide, while the iPhone 18 Pro measures 150 mm tall by 71.9 mm wide.

Are both phones suitable for smaller hands?

The iPhone 18 Pro suits smaller hands much better due to its narrow width, whereas the wide iPhone Duo (folded) is harder to span.