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iPhone 17 Pro Max vs iPhone Duo

Quick answer

The iPhone Duo is 45.6 millimetres1.80 inches shorter and 2.55 millimetres0.10 inches thicker than the iPhone 17 Pro Max.

The iPhone Duo is 86.6 millimetres3.41 inches wider and 45.6 millimetres1.80 inches shorter than the iPhone 17 Pro Max.

The iPhone 17 Pro Max on Amazon (paid link) is a mature device that fits easily in a pocket and costs less now that the new cycle has begun. The iPhone Duo (paid link) offers a shorter grip and longer lasting battery, but at a premium price for a brand new foldable. Choose the Max for value and pocketability or the Duo if you want the newest design and can live with the cost.

Paid link.

Easier one-handediPhone 17 Pro Max

PocketiPhone 17 Pro Max

Weight differenceNoticeable

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Paid link.

HeightWidthDepthWeight17 Pro Max163.4 millimetres6.43 inches78.0 millimetres3.07 inches8.75 millimetres0.34 inches233 grams8.22 ouncesDuo117.8 millimetres, 45.6 millimetres less4.64 inches, 1.80 inches less84.1 millimetres, 6.1 millimetres more3.31 inches, 0.24 inches more11.30 millimetres, 2.55 millimetres more0.44 inches, 0.10 inches more254 grams, 21 grams more8.96 ounces, 0.74 ounces more

Height: 17 Pro Max 163.4 millimetres, Duo 117.8 millimetres.Height: 17 Pro Max 6.43 inches, Duo 4.64 inches.Width: 17 Pro Max 78.0 millimetres, Duo 84.1 millimetres.Width: 17 Pro Max 3.07 inches, Duo 3.31 inches.Depth: 17 Pro Max 8.75 millimetres, Duo 11.30 millimetres.Depth: 17 Pro Max 0.34 inches, Duo 0.44 inches.Weight: 17 Pro Max 233 grams, Duo 254 grams.Weight: 17 Pro Max 8.22 ounces, Duo 8.96 ounces.

HeightWidthDepthWeight17 Pro Max163.4 millimetres6.43 inches78.0 millimetres3.07 inches8.75 millimetres0.34 inches233 grams8.22 ouncesDuo117.8 millimetres, 45.6 millimetres less4.64 inches, 1.80 inches less164.6 millimetres, 86.6 millimetres more6.48 inches, 3.41 inches more5.20 millimetres, 3.55 millimetres less0.20 inches, 0.14 inches less254 grams, 21 grams more8.96 ounces, 0.74 ounces more

Height: 17 Pro Max 163.4 millimetres, Duo 117.8 millimetres.Height: 17 Pro Max 6.43 inches, Duo 4.64 inches.Width: 17 Pro Max 78.0 millimetres, Duo 164.6 millimetres.Width: 17 Pro Max 3.07 inches, Duo 6.48 inches.Depth: 17 Pro Max 8.75 millimetres, Duo 5.20 millimetres.Depth: 17 Pro Max 0.34 inches, Duo 0.20 inches.Weight: 17 Pro Max 233 grams, Duo 254 grams.Weight: 17 Pro Max 8.22 ounces, Duo 8.96 ounces.

Specifications

Specifications for iPhone 17 Pro Max, iPhone Duo. Differences are given against iPhone 17 Pro Max.
Specification17 Pro MaxDuo
Height163.4 millimetres6.43 inches163.4 millimetres6.43 inches117.8 millimetres, 45.6 millimetres less4.64 inches, 1.80 inches less117.8 millimetres, 45.6 millimetres less4.64 inches, 1.80 inches less
Height, open—117.8 millimetres4.64 inches
Height, closed—117.8 millimetres4.64 inches
Width78.0 millimetres3.07 inches78.0 millimetres3.07 inches84.1 millimetres, 6.1 millimetres more3.31 inches, 0.24 inches more164.6 millimetres, 86.6 millimetres more6.48 inches, 3.41 inches more
Width, open—164.6 millimetres6.48 inches
Width, closed—84.1 millimetres3.31 inches
Depth8.75 millimetres0.34 inches8.75 millimetres0.34 inches11.30 millimetres, 2.55 millimetres more0.44 inches, 0.10 inches more5.20 millimetres, 3.55 millimetres less0.20 inches, 0.14 inches less
Depth, open—5.20 millimetres0.20 inches
Depth, closed—11.30 millimetres0.44 inches
Weight233 grams8.22 ounces233 grams8.22 ounces254 grams, 21 grams more8.96 ounces, 0.74 ounces more254 grams, 21 grams more8.96 ounces, 0.74 ounces more
Volume111.5 cubic centimetres6.81 cubic inches111.5 cubic centimetres6.81 cubic inches111.9 cubic centimetres, 0.4 cubic centimetres more6.83 cubic inches, 0.03 cubic inches more100.8 cubic centimetres, 10.7 cubic centimetres less6.15 cubic inches, 0.65 cubic inches less
Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure.91 percent91 percent89 percent, 2 percent less90 percent, the same
Display size — Screen size is always quoted in inches.6.9 inches6.9 inches5.4 inches, 1.5 inches less7.6 inches, 0.7 inches more
Resolution1320 × 28681320 × 28681398 × 20341878 × 2670
Pixel density460 pixels per inch460 pixels per inch460 pixels per inch, the same430 pixels per inch, 30 pixels per inch less
CutoutDynamic IslandDynamic IslandDynamic IslandNone
Rear main48MP48MP48MP Fusion f/1.648MP Fusion f/1.6
Rear ultra-wide——48MP Ultra Wide f/2.248MP Ultra Wide f/2.2
Rear telephoto————
Front camera12MP12MP12MP Center Stage f/2.2 (outer), under-display FaceTime f/1.8 (inner)12MP Center Stage f/2.2 (outer), under-display FaceTime f/1.8 (inner)
ChipA19 ProA19 ProA20 ProA20 Pro
Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity.38 hrs38 hrs44 hrs31 hrs
PortUSB-CUSB-CUSB-CUSB-C
Wireless5G · Wi-Fi · Bluetooth5G · Wi-Fi · Bluetooth5G · 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)IP68 (6m for 30 min)IP68 (6m for 30 min)
Storage256 GB – 2 TB256 GB – 2 TB256 GB – 2 TB256 GB – 2 TB
Launch price — Base configuration at launch, in US dollars.1,199 dollars1,199 dollars1,999 dollars, 800 dollars more1,999 dollars, 800 dollars more
ReleasedSep 2025Sep 2025Oct 2026Oct 2026
StatusDiscontinuedDiscontinuedCurrentCurrent

Dimensions

The iPhone Duo (closed) is 45.6 mm (1.80 in) shorter, 6.1 mm (0.24 in) wider, 2.55 mm (0.10 in) thicker and 21 g (0.74 oz) heavier than the iPhone 17 Pro Max. The iPhone 17 Pro Max measures 163.4 × 78.0 × 8.75 mm (6.43 × 3.07 × 0.34 in) and weighs 233 g (8.22 oz). The iPhone Duo (closed) measures 117.8 × 84.1 × 11.30 mm (4.64 × 3.31 × 0.44 in) and weighs 254 g (8.96 oz). The iPhone Duo (open) measures 117.8 × 164.6 × 5.20 mm (4.64 × 6.48 × 0.20 in) and weighs 254 g (8.96 oz).

Also compared with iPhone 17 Pro Max

Questions about these phones

How does the iPhone Duo height compare to the iPhone 17 Pro Max?

The iPhone Duo is 45.6 mm shorter than the iPhone 17 Pro Max. It is also 6.1 mm wider with a 5.4 inch screen instead of 6.9 inches.

Is the iPhone Duo heavier than the iPhone 17 Pro Max?

The iPhone Duo weighs 254 grams which is 21 grams heavier than the iPhone 17 Pro Max. This weight difference is noticeable in use.

What is the difference in screen size between the iPhone Duo and iPhone 17 Pro Max?

The iPhone 17 Pro Max has a 6.9 inch display while the iPhone Duo has a 5.4 inch screen. The larger screen on the iPhone 17 Pro Max adds to its overall height.

Which phone is easier to hold in one hand?

The iPhone 17 Pro Max is easier to use one handed than the iPhone Duo. It is also better for small hands because of its shorter stature.

Will these phones fit in a typical jeans pocket?

The iPhone 17 Pro Max fits in a typical men's jeans pocket but the iPhone Duo does not. Neither phone fits in a typical women's jeans pocket.

Is switching to the iPhone Duo a big size change?

The iPhone Duo is shorter and wider but heavier than the iPhone 17 Pro Max. The size only upgrade value depends on if you prefer a smaller body or larger screen.