iPhone Duo vs iPhone XS
Quick answer
The iPhone XS is 13.2 millimetres0.52 inches narrower and 77 grams2.72 ounces lighter than the iPhone Duo.
The iPhone XS is 93.7 millimetres3.69 inches narrower and 77 grams2.72 ounces lighter than the iPhone Duo.
Apple sells the iPhone Duo on Amazon (paid link) today for $1,999, just as it launches, while the iPhone XS (paid link) is available renewed for around $150. The XS no longer gets iOS updates, leaving you stuck on an old version with security risk. You get a folding screen and vastly better battery life on the Duo, but for most people, the XS is too much of a compromise. If you want something newer without going folding, the iPhone 17 (paid link) is a solid middle ground.
Paid link.
Easier one-handed: Same
Pocket: iPhone XS
Weight difference: Noticeable
iPhone DuoiPhone Duo
from $1,999 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)iPhone XS
from $999 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)
Paid link.
TRUE SCALE · 1.2 PX/MM
TRUE SCALE · 2.3 PX/MM
Hand: US Army ANSUR II, 2012 (sex-balanced median). Pockets: The Pudding, 2018. Card: ISO/IEC 7810 ID-1.
iPhone Duo: 117.8 by 84.1 by 11.3 millimetres, 254 grams. iPhone XS: 143.6 by 70.9 by 7.7 millimetres, 177 grams.iPhone Duo: 117.8 by 164.6 by 5.2 millimetres, 254 grams. iPhone XS: 143.6 by 70.9 by 7.7 millimetres, 177 grams.
Duo, XS shown at 2.3 pixels per millimetre.
iPhone DuoiPhone Duo
from $1,999 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)iPhone XS
from $999 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)
Paid link.
Height: Duo 117.8 millimetres, XS 143.6 millimetres.Height: Duo 4.64 inches, XS 5.65 inches.Width: Duo 84.1 millimetres, XS 70.9 millimetres.Width: Duo 3.31 inches, XS 2.79 inches.Depth: Duo 11.30 millimetres, XS 7.70 millimetres.Depth: Duo 0.44 inches, XS 0.30 inches.Weight: Duo 254 grams, XS 177 grams.Weight: Duo 8.96 ounces, XS 6.24 ounces.
Height: Duo 117.8 millimetres, XS 143.6 millimetres.Height: Duo 4.64 inches, XS 5.65 inches.Width: Duo 164.6 millimetres, XS 70.9 millimetres.Width: Duo 6.48 inches, XS 2.79 inches.Depth: Duo 5.20 millimetres, XS 7.70 millimetres.Depth: Duo 0.20 inches, XS 0.30 inches.Weight: Duo 254 grams, XS 177 grams.Weight: Duo 8.96 ounces, XS 6.24 ounces.
Specifications
| Specification | Duo | XS |
|---|---|---|
| Height | 117.8 millimetres4.64 inches117.8 millimetres4.64 inches | 143.6 millimetres, 25.8 millimetres more5.65 inches, 1.02 inches more143.6 millimetres, 25.8 millimetres more5.65 inches, 1.02 inches more |
| Height, open | 117.8 millimetres4.64 inches | — |
| Height, closed | 117.8 millimetres4.64 inches | — |
| Width | 84.1 millimetres3.31 inches164.6 millimetres6.48 inches | 70.9 millimetres, 13.2 millimetres less2.79 inches, 0.52 inches less70.9 millimetres, 93.7 millimetres less2.79 inches, 3.69 inches less |
| Width, open | 164.6 millimetres6.48 inches | — |
| Width, closed | 84.1 millimetres3.31 inches | — |
| Depth | 11.30 millimetres0.44 inches5.20 millimetres0.20 inches | 7.70 millimetres, 3.60 millimetres less0.30 inches, 0.14 inches less7.70 millimetres, 2.50 millimetres more0.30 inches, 0.10 inches more |
| Depth, open | 5.20 millimetres0.20 inches | — |
| Depth, closed | 11.30 millimetres0.44 inches | — |
| Weight | 254 grams8.96 ounces254 grams8.96 ounces | 177 grams, 77 grams less6.24 ounces, 2.72 ounces less177 grams, 77 grams less6.24 ounces, 2.72 ounces less |
| Volume | 111.9 cubic centimetres6.83 cubic inches100.8 cubic centimetres6.15 cubic inches | 78.4 cubic centimetres, 33.6 cubic centimetres less4.78 cubic inches, 2.05 cubic inches less78.4 cubic centimetres, 22.4 cubic centimetres less4.78 cubic inches, 1.37 cubic inches less |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 89 percent90 percent | 83 percent, 6 percent less83 percent, 7 percent less |
| Display size — Screen size is always quoted in inches. | 5.4 inches7.6 inches | 5.8 inches, 0.4 inches more5.8 inches, 1.8 inches less |
| Resolution | 1398 × 20341878 × 2670 | 1125 × 24361125 × 2436 |
| Pixel density | 460 pixels per inch430 pixels per inch | 458 pixels per inch, 2 pixels per inch less458 pixels per inch, 28 pixels per inch more |
| Cutout | Dynamic IslandNone | NotchNotch |
| Rear main | 48MP Fusion f/1.648MP Fusion f/1.6 | 12MP12MP |
| Rear ultra-wide | 48MP Ultra Wide f/2.248MP Ultra Wide f/2.2 | —— |
| Rear telephoto | —— | —— |
| Front camera | 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) | 12MP12MP |
| Chip | A20 ProA20 Pro | A12 BionicA12 Bionic |
| Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity. | 44 hrs31 hrs | 14 hrs14 hrs |
| Port | USB-CUSB-C | LightningLightning |
| Wireless | 5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem | 5G · Wi-Fi 6 · Bluetooth 5.05G · Wi-Fi 6 · Bluetooth 5.0 |
| Water resistance | IP68 (6m for 30 min)IP68 (6m for 30 min) | IP67 (1m for 30 min)IP67 (1m for 30 min) |
| Storage | 256 GB – 2 TB256 GB – 2 TB | 64 – 512 GB64 – 512 GB |
| Launch price — Base configuration at launch, in US dollars. | 1,999 dollars1,999 dollars | 999 dollars, 1000 dollars less999 dollars, 1000 dollars less |
| Released | Oct 2026Oct 2026 | Sep 2018Sep 2018 |
| Status | CurrentCurrent | LegacyLegacy |
Dimensions
The iPhone XS is 25.8 mm (1.02 in) taller, 13.2 mm (0.52 in) narrower, 3.60 mm (0.14 in) thinner and 77 g (2.72 oz) lighter than the iPhone Duo (closed). 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). The iPhone XS measures 143.6 × 70.9 × 7.70 mm (5.65 × 2.79 × 0.30 in) and weighs 177 g (6.24 oz).
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Questions about these phones
How big is iPhone Duo compared to iPhone XS?
iPhone XS is 25.8 mm taller and 13.2 mm narrower than iPhone Duo when the Duo is closed.
Is iPhone Duo heavier than iPhone XS?
iPhone XS is 77 g lighter than iPhone Duo, and this weight difference is noticeable to most users.
Does iPhone Duo fit in a men's jeans pocket?
iPhone XS fits in a typical men's jeans pocket but iPhone Duo does not.
Which phone is easier to use one-handed?
The phones have similar one-handed ease overall but iPhone XS is better for small hands.
What is the screen size difference between iPhone Duo and iPhone XS?
iPhone XS has a 5.8 inch screen whereas iPhone Duo has a 5.4 inch screen when closed.
Is upgrading from iPhone XS to iPhone Duo worth it for size?
It is not worth upgrading from iPhone XS to iPhone Duo if you are only looking for a size change.