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iPhone 12 Pro Max vs iPhone Duo

Quick answer

The iPhone Duo is 43.0 millimetres1.69 inches shorter and 3.90 millimetres0.15 inches thicker than the iPhone 12 Pro Max.

The iPhone Duo is 86.5 millimetres3.41 inches wider and 43.0 millimetres1.69 inches shorter than the iPhone 12 Pro Max.

The iPhone Duo on Amazon (paid link) just launched as a folded compact that costs much more, while the 12 Pro Max (paid link) is now a renewed relic you can grab cheap. You get dramatically longer battery life and a display that opens wider, but you trade the classic slab shape and savings. Pick the Duo if you want tomorrow’s tech today, or stick with the 12 Pro Max if you need a deal. If you want something newer without going full foldable, the iPhone 18 Pro Max (paid link) splits the difference.

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Easier one-handedUnclear

PocketiPhone 12 Pro Max

Weight differenceNoticeable

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HeightWidthDepthWeight12 Pro Max160.8 millimetres6.33 inches78.1 millimetres3.07 inches7.40 millimetres0.29 inches228 grams8.04 ouncesDuo117.8 millimetres, 43.0 millimetres less4.64 inches, 1.69 inches less84.1 millimetres, 6.0 millimetres more3.31 inches, 0.24 inches more11.30 millimetres, 3.90 millimetres more0.44 inches, 0.15 inches more254 grams, 26 grams more8.96 ounces, 0.92 ounces more

Height: 12 Pro Max 160.8 millimetres, Duo 117.8 millimetres.Height: 12 Pro Max 6.33 inches, Duo 4.64 inches.Width: 12 Pro Max 78.1 millimetres, Duo 84.1 millimetres.Width: 12 Pro Max 3.07 inches, Duo 3.31 inches.Depth: 12 Pro Max 7.40 millimetres, Duo 11.30 millimetres.Depth: 12 Pro Max 0.29 inches, Duo 0.44 inches.Weight: 12 Pro Max 228 grams, Duo 254 grams.Weight: 12 Pro Max 8.04 ounces, Duo 8.96 ounces.

HeightWidthDepthWeight12 Pro Max160.8 millimetres6.33 inches78.1 millimetres3.07 inches7.40 millimetres0.29 inches228 grams8.04 ouncesDuo117.8 millimetres, 43.0 millimetres less4.64 inches, 1.69 inches less164.6 millimetres, 86.5 millimetres more6.48 inches, 3.41 inches more5.20 millimetres, 2.20 millimetres less0.20 inches, 0.09 inches less254 grams, 26 grams more8.96 ounces, 0.92 ounces more

Height: 12 Pro Max 160.8 millimetres, Duo 117.8 millimetres.Height: 12 Pro Max 6.33 inches, Duo 4.64 inches.Width: 12 Pro Max 78.1 millimetres, Duo 164.6 millimetres.Width: 12 Pro Max 3.07 inches, Duo 6.48 inches.Depth: 12 Pro Max 7.40 millimetres, Duo 5.20 millimetres.Depth: 12 Pro Max 0.29 inches, Duo 0.20 inches.Weight: 12 Pro Max 228 grams, Duo 254 grams.Weight: 12 Pro Max 8.04 ounces, Duo 8.96 ounces.

Specifications

Specifications for iPhone 12 Pro Max, iPhone Duo. Differences are given against iPhone 12 Pro Max.
Specification12 Pro MaxDuo
Height160.8 millimetres6.33 inches160.8 millimetres6.33 inches117.8 millimetres, 43.0 millimetres less4.64 inches, 1.69 inches less117.8 millimetres, 43.0 millimetres less4.64 inches, 1.69 inches less
Height, open—117.8 millimetres4.64 inches
Height, closed—117.8 millimetres4.64 inches
Width78.1 millimetres3.07 inches78.1 millimetres3.07 inches84.1 millimetres, 6.0 millimetres more3.31 inches, 0.24 inches more164.6 millimetres, 86.5 millimetres more6.48 inches, 3.41 inches more
Width, open—164.6 millimetres6.48 inches
Width, closed—84.1 millimetres3.31 inches
Depth7.40 millimetres0.29 inches7.40 millimetres0.29 inches11.30 millimetres, 3.90 millimetres more0.44 inches, 0.15 inches more5.20 millimetres, 2.20 millimetres less0.20 inches, 0.09 inches less
Depth, open—5.20 millimetres0.20 inches
Depth, closed—11.30 millimetres0.44 inches
Weight228 grams8.04 ounces228 grams8.04 ounces254 grams, 26 grams more8.96 ounces, 0.92 ounces more254 grams, 26 grams more8.96 ounces, 0.92 ounces more
Volume92.9 cubic centimetres5.67 cubic inches92.9 cubic centimetres5.67 cubic inches111.9 cubic centimetres, 19.0 cubic centimetres more6.83 cubic inches, 1.16 cubic inches more100.8 cubic centimetres, 7.9 cubic centimetres more6.15 cubic inches, 0.48 cubic inches more
Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure.87 percent87 percent89 percent, 1 percent more90 percent, 3 percent more
Display size — Screen size is always quoted in inches.6.7 inches6.7 inches5.4 inches, 1.3 inches less7.6 inches, 0.9 inches more
Resolution1284 × 27781284 × 27781398 × 20341878 × 2670
Pixel density458 pixels per inch458 pixels per inch460 pixels per inch, 2 pixels per inch more430 pixels per inch, 28 pixels per inch less
CutoutNotchNotchDynamic 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)
ChipA14 BionicA14 BionicA20 ProA20 Pro
Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity.20 hrs20 hrs44 hrs31 hrs
PortLightningLightningUSB-CUSB-C
Wireless5G · Wi-Fi 6 · Bluetooth 5.05G · Wi-Fi 6 · Bluetooth 5.05G · 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)
Storage128 – 512 GB128 – 512 GB256 GB – 2 TB256 GB – 2 TB
Launch price — Base configuration at launch, in US dollars.1,099 dollars1,099 dollars1,999 dollars, 900 dollars more1,999 dollars, 900 dollars more
ReleasedNov 2020Nov 2020Oct 2026Oct 2026
StatusLegacyLegacyCurrentCurrent

Dimensions

The iPhone Duo (closed) is 43.0 mm (1.69 in) shorter, 6.0 mm (0.24 in) wider, 3.90 mm (0.15 in) thicker and 26 g (0.92 oz) heavier than the iPhone 12 Pro Max. The iPhone 12 Pro Max measures 160.8 × 78.1 × 7.40 mm (6.33 × 3.07 × 0.29 in) and weighs 228 g (8.04 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 12 Pro Max

Questions about these phones

How much smaller is the iPhone Duo than the iPhone 12 Pro Max?

The iPhone Duo is 43 mm shorter and 6 mm wider than the iPhone 12 Pro Max when closed. It also measures 4 mm thicker than the older model.

Is the iPhone Duo heavier than the iPhone 12 Pro Max?

The iPhone Duo weighs 254 g, which is 26 g heavier than the iPhone 12 Pro Max at 228 g. This weight difference is noticeable in the hand.

What is the screen size difference between these phones?

The iPhone Duo has a 5.4 inch display while the iPhone 12 Pro Max has a 6.7 inch screen. The iPhone 12 Pro Max offers over an inch more viewing area.

Which phone is easier to use one-handed?

One-handed use is unclear between the iPhone Duo and the iPhone 12 Pro Max. The verdict notes that either phone may suit an average adult hand.

Do these phones fit in a typical men's jeans pocket?

The iPhone 12 Pro Max fits in a typical men's jeans pocket but the iPhone Duo does not. The verdicts confirm the iPhone 12 Pro Max is more pocketable.

Is the iPhone Duo a size upgrade over the iPhone 12 Pro Max?

The iPhone Duo is shorter but wider and heavier than the iPhone 12 Pro Max. Whether a size-only upgrade is worth the switch depends on your preference for compact height versus width.