iPhone XS vs iPhone Duo
Quick answer
The iPhone Duo is 13.2 millimetres0.52 inches wider and 77 grams2.72 ounces heavier than the iPhone XS.
The iPhone Duo is 93.7 millimetres3.69 inches wider and 77 grams2.72 ounces heavier than the iPhone XS.
The iPhone XS on Amazon (paid link) no longer gets iOS updates, so it is stuck on its last version. The iPhone Duo (paid link) runs the newest software and ships just released, offering a folding design and lasting battery life, but it is wider and heavier when closed. Pick the XS for a slim, cheap handset; the Duo is the only modern choice. If you would rather skip the fold, the iPhone 17 (paid link) is a solid modern pick.
Paid link.
Easier one-handed: iPhone XS
Pocket: iPhone XS
Weight difference: Noticeable
iPhone XS
from $999 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 · 2.3 PX/MM
Hand: US Army ANSUR II, 2012 (sex-balanced median). Pockets: The Pudding, 2018. Card: ISO/IEC 7810 ID-1.
iPhone XS: 143.6 by 70.9 by 7.7 millimetres, 177 grams. 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.
XS, Duo shown at 2.3 pixels per millimetre.
iPhone XS
from $999 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 143.6 millimetres, Duo 117.8 millimetres.Height: XS 5.65 inches, Duo 4.64 inches.Width: XS 70.9 millimetres, Duo 84.1 millimetres.Width: XS 2.79 inches, Duo 3.31 inches.Depth: XS 7.70 millimetres, Duo 11.30 millimetres.Depth: XS 0.30 inches, Duo 0.44 inches.Weight: XS 177 grams, Duo 254 grams.Weight: XS 6.24 ounces, Duo 8.96 ounces.
Height: XS 143.6 millimetres, Duo 117.8 millimetres.Height: XS 5.65 inches, Duo 4.64 inches.Width: XS 70.9 millimetres, Duo 164.6 millimetres.Width: XS 2.79 inches, Duo 6.48 inches.Depth: XS 7.70 millimetres, Duo 5.20 millimetres.Depth: XS 0.30 inches, Duo 0.20 inches.Weight: XS 177 grams, Duo 254 grams.Weight: XS 6.24 ounces, Duo 8.96 ounces.
Specifications
| Specification | XS | Duo |
|---|---|---|
| Height | 143.6 millimetres5.65 inches143.6 millimetres5.65 inches | 117.8 millimetres, 25.8 millimetres less4.64 inches, 1.02 inches less117.8 millimetres, 25.8 millimetres less4.64 inches, 1.02 inches less |
| Height, open | — | 117.8 millimetres4.64 inches |
| Height, closed | — | 117.8 millimetres4.64 inches |
| Width | 70.9 millimetres2.79 inches70.9 millimetres2.79 inches | 84.1 millimetres, 13.2 millimetres more3.31 inches, 0.52 inches more164.6 millimetres, 93.7 millimetres more6.48 inches, 3.69 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 | 177 grams6.24 ounces177 grams6.24 ounces | 254 grams, 77 grams more8.96 ounces, 2.72 ounces more254 grams, 77 grams more8.96 ounces, 2.72 ounces more |
| Volume | 78.4 cubic centimetres4.78 cubic inches78.4 cubic centimetres4.78 cubic inches | 111.9 cubic centimetres, 33.6 cubic centimetres more6.83 cubic inches, 2.05 cubic inches more100.8 cubic centimetres, 22.4 cubic centimetres more6.15 cubic inches, 1.37 cubic inches more |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 83 percent83 percent | 89 percent, 6 percent more90 percent, 7 percent more |
| Display size — Screen size is always quoted in inches. | 5.8 inches5.8 inches | 5.4 inches, 0.4 inches less7.6 inches, 1.8 inches more |
| Resolution | 1125 × 24361125 × 2436 | 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. | 14 hrs14 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. | 999 dollars999 dollars | 1,999 dollars, 1000 dollars more1,999 dollars, 1000 dollars more |
| Released | Sep 2018Sep 2018 | Oct 2026Oct 2026 |
| Status | LegacyLegacy | CurrentCurrent |
Dimensions
The iPhone Duo (closed) is 25.8 mm (1.02 in) shorter, 13.2 mm (0.52 in) wider, 3.60 mm (0.14 in) thicker and 77 g (2.72 oz) heavier than the iPhone XS. 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). 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 XS
Questions about these phones
How does the iPhone Duo size compare to the iPhone XS?
The iPhone Duo is 25.8 mm shorter and 13.2 mm wider than the iPhone XS.
Is the iPhone Duo heavier than the iPhone XS?
The iPhone Duo weighs 77 grams more than the iPhone XS, making the weight difference noticeable.
Which phone has a bigger screen?
The iPhone XS has a 5.8 inch display while the iPhone Duo has a 5.4 inch display when closed.
Is the iPhone Duo easier to use one-handed?
The iPhone XS is easier to use one-handed and better for small hands than the iPhone Duo.
Does the iPhone Duo fit in a jeans pocket?
The iPhone XS fits in a typical men's jeans pocket, but the iPhone Duo does not fit in a typical men's or women's jeans pocket.
Is a size-only upgrade worth it from the iPhone XS to the iPhone Duo?
Whether a size-only upgrade is worth it depends on your preferences since the iPhone Duo is shorter but wider and heavier than the iPhone XS.