iPhone XS Max vs iPhone Duo
Quick answer
The iPhone Duo is 39.7 millimetres1.56 inches shorter and 46 grams1.62 ounces heavier than the iPhone XS Max.
The iPhone Duo is 87.2 millimetres3.43 inches wider and 39.7 millimetres1.56 inches shorter than the iPhone XS Max.
The iPhone XS Max on Amazon (paid link) no longer receives iOS updates, while the new iPhone Duo (paid link) ships with the newest software and promises vastly better endurance. The Duo feels more approachable to one hand despite its added bulk and cost. If you value longevity and a foldable design, the switch is clear. If you'd rather skip the fold, the iPhone 16 Plus (paid link) offers big-screen endurance at a friendlier price.
Paid link.
Easier one-handed: iPhone Duo
Pocket: iPhone XS Max
Weight difference: Noticeable
iPhone XS Max
from $1,099 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)iPhone DuoiPhone Duo
from $1,999 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)
Paid link.
TRUE SCALE · 1.2 PX/MM
TRUE SCALE · 2.1 PX/MM
Hand: US Army ANSUR II, 2012 (sex-balanced median). Pockets: The Pudding, 2018. Card: ISO/IEC 7810 ID-1.
iPhone XS Max: 157.5 by 77.4 by 7.7 millimetres, 208 grams. iPhone Duo: 117.8 by 84.1 by 11.3 millimetres, 254 grams.iPhone XS Max: 157.5 by 77.4 by 7.7 millimetres, 208 grams. iPhone Duo: 117.8 by 164.6 by 5.2 millimetres, 254 grams.
XS Max, Duo shown at 2.1 pixels per millimetre.
iPhone XS Max
from $1,099 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)iPhone DuoiPhone Duo
from $1,999 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)
Paid link.
Height: XS Max 157.5 millimetres, Duo 117.8 millimetres.Height: XS Max 6.20 inches, Duo 4.64 inches.Width: XS Max 77.4 millimetres, Duo 84.1 millimetres.Width: XS Max 3.05 inches, Duo 3.31 inches.Depth: XS Max 7.70 millimetres, Duo 11.30 millimetres.Depth: XS Max 0.30 inches, Duo 0.44 inches.Weight: XS Max 208 grams, Duo 254 grams.Weight: XS Max 7.34 ounces, Duo 8.96 ounces.
Height: XS Max 157.5 millimetres, Duo 117.8 millimetres.Height: XS Max 6.20 inches, Duo 4.64 inches.Width: XS Max 77.4 millimetres, Duo 164.6 millimetres.Width: XS Max 3.05 inches, Duo 6.48 inches.Depth: XS Max 7.70 millimetres, Duo 5.20 millimetres.Depth: XS Max 0.30 inches, Duo 0.20 inches.Weight: XS Max 208 grams, Duo 254 grams.Weight: XS Max 7.34 ounces, Duo 8.96 ounces.
Specifications
| Specification | XS Max | Duo |
|---|---|---|
| Height | 157.5 millimetres6.20 inches157.5 millimetres6.20 inches | 117.8 millimetres, 39.7 millimetres less4.64 inches, 1.56 inches less117.8 millimetres, 39.7 millimetres less4.64 inches, 1.56 inches less |
| Height, open | — | 117.8 millimetres4.64 inches |
| Height, closed | — | 117.8 millimetres4.64 inches |
| Width | 77.4 millimetres3.05 inches77.4 millimetres3.05 inches | 84.1 millimetres, 6.7 millimetres more3.31 inches, 0.26 inches more164.6 millimetres, 87.2 millimetres more6.48 inches, 3.43 inches more |
| Width, open | — | 164.6 millimetres6.48 inches |
| Width, closed | — | 84.1 millimetres3.31 inches |
| Depth | 7.70 millimetres0.30 inches7.70 millimetres0.30 inches | 11.30 millimetres, 3.60 millimetres more0.44 inches, 0.14 inches more5.20 millimetres, 2.50 millimetres less0.20 inches, 0.10 inches less |
| Depth, open | — | 5.20 millimetres0.20 inches |
| Depth, closed | — | 11.30 millimetres0.44 inches |
| Weight | 208 grams7.34 ounces208 grams7.34 ounces | 254 grams, 46 grams more8.96 ounces, 1.62 ounces more254 grams, 46 grams more8.96 ounces, 1.62 ounces more |
| Volume | 93.9 cubic centimetres5.73 cubic inches93.9 cubic centimetres5.73 cubic inches | 111.9 cubic centimetres, 18.1 cubic centimetres more6.83 cubic inches, 1.10 cubic inches more100.8 cubic centimetres, 7.0 cubic centimetres more6.15 cubic inches, 0.42 cubic inches more |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 84 percent84 percent | 89 percent, 4 percent more90 percent, 6 percent more |
| Display size — Screen size is always quoted in inches. | 6.5 inches6.5 inches | 5.4 inches, 1.1 inches less7.6 inches, 1.1 inches more |
| Resolution | 1242 × 26881242 × 2688 | 1398 × 20341878 × 2670 |
| Pixel density | 458 pixels per inch458 pixels per inch | 460 pixels per inch, 2 pixels per inch more430 pixels per inch, 28 pixels per inch less |
| Cutout | NotchNotch | Dynamic IslandNone |
| Rear main | 12MP12MP | 48MP 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 camera | 12MP12MP | 12MP 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) |
| Chip | A12 BionicA12 Bionic | A20 ProA20 Pro |
| Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity. | 15 hrs15 hrs | 44 hrs31 hrs |
| Port | LightningLightning | USB-CUSB-C |
| Wireless | 5G · Wi-Fi 6 · Bluetooth 5.05G · Wi-Fi 6 · Bluetooth 5.0 | 5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem |
| Water resistance | IP67 (1m for 30 min)IP67 (1m for 30 min) | IP68 (6m for 30 min)IP68 (6m for 30 min) |
| Storage | 64 – 512 GB64 – 512 GB | 256 GB – 2 TB256 GB – 2 TB |
| Launch price — Base configuration at launch, in US dollars. | 1,099 dollars1,099 dollars | 1,999 dollars, 900 dollars more1,999 dollars, 900 dollars more |
| Released | Sep 2018Sep 2018 | Oct 2026Oct 2026 |
| Status | LegacyLegacy | CurrentCurrent |
Dimensions
The iPhone Duo (closed) is 39.7 mm (1.56 in) shorter, 6.7 mm (0.26 in) wider, 3.60 mm (0.14 in) thicker and 46 g (1.62 oz) heavier than the iPhone XS Max. The iPhone XS Max measures 157.5 × 77.4 × 7.70 mm (6.20 × 3.05 × 0.30 in) and weighs 208 g (7.34 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).
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Questions about these phones
How much shorter is the iPhone Duo compared to the iPhone XS Max?
The iPhone Duo is 39.7 mm shorter than the iPhone XS Max when closed. This reduced height makes it easier to reach the top of the screen with one hand.
Is the iPhone Duo wider than the iPhone XS Max?
Yes, the iPhone Duo is 6.7 mm wider than the iPhone XS Max. Its broader width means it occupies more horizontal space in the palm.
Which phone weighs more?
The iPhone Duo is 46 g heavier than the iPhone XS Max. This weight difference is noticeable during daily use.
How do the screen sizes compare?
The iPhone XS Max has a 6.5 inch display while the iPhone Duo has a 5.4 inch display. The iPhone XS Max provides a larger viewing area.
Do either phone fit in a typical men's jeans pocket?
The iPhone XS Max fits in a typical men's jeans pocket but the iPhone Duo does not. The iPhone XS Max is the more pocketable of the two.
Is the iPhone Duo better for one-handed use?
The iPhone Duo is easier for one-handed use and better for small hands. Its shorter height helps compensate for its wider body.