iPhone X vs iPhone Duo
Quick answer
The iPhone Duo is 13.2 millimetres0.52 inches wider and 80 grams2.82 ounces heavier than the iPhone X.
The iPhone Duo is 93.7 millimetres3.69 inches wider and 80 grams2.82 ounces heavier than the iPhone X.
The iPhone X on Amazon (paid link) has no software support now, while the iPhone Duo (paid link) launches fresh with the current iOS. The new model is far more expensive and physically denser, feeling heavier and wider even when closed. Choose the Duo for longevity, but expect a larger footprint in the hand.
Paid link.
Easier one-handed: iPhone X
Pocket: iPhone X
Weight difference: Noticeable
iPhone X
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 X: 143.6 by 70.9 by 7.7 millimetres, 174 grams. iPhone Duo: 117.8 by 84.1 by 11.3 millimetres, 254 grams.iPhone X: 143.6 by 70.9 by 7.7 millimetres, 174 grams. iPhone Duo: 117.8 by 164.6 by 5.2 millimetres, 254 grams.
X, Duo shown at 2.3 pixels per millimetre.
iPhone X
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: X 143.6 millimetres, Duo 117.8 millimetres.Height: X 5.65 inches, Duo 4.64 inches.Width: X 70.9 millimetres, Duo 84.1 millimetres.Width: X 2.79 inches, Duo 3.31 inches.Depth: X 7.70 millimetres, Duo 11.30 millimetres.Depth: X 0.30 inches, Duo 0.44 inches.Weight: X 174 grams, Duo 254 grams.Weight: X 6.14 ounces, Duo 8.96 ounces.
Height: X 143.6 millimetres, Duo 117.8 millimetres.Height: X 5.65 inches, Duo 4.64 inches.Width: X 70.9 millimetres, Duo 164.6 millimetres.Width: X 2.79 inches, Duo 6.48 inches.Depth: X 7.70 millimetres, Duo 5.20 millimetres.Depth: X 0.30 inches, Duo 0.20 inches.Weight: X 174 grams, Duo 254 grams.Weight: X 6.14 ounces, Duo 8.96 ounces.
Specifications
| Specification | X | 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 | 174 grams6.14 ounces174 grams6.14 ounces | 254 grams, 80 grams more8.96 ounces, 2.82 ounces more254 grams, 80 grams more8.96 ounces, 2.82 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 | 7MP7MP | 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 | A11 BionicA11 Bionic | A20 ProA20 Pro |
| Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity. | 13 hrs13 hrs | 44 hrs31 hrs |
| Port | LightningLightning | USB-CUSB-C |
| Wireless | 4G LTE · Wi-Fi · Bluetooth4G LTE · Wi-Fi · Bluetooth | 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 – 256 GB64 – 256 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 | Nov 2017Nov 2017 | 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 80 g (2.82 oz) heavier than the iPhone X. The iPhone X measures 143.6 × 70.9 × 7.70 mm (5.65 × 2.79 × 0.30 in) and weighs 174 g (6.14 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 X
Questions about these phones
How do the physical dimensions compare?
The iPhone X is 25.8 mm taller but 13.2 mm narrower than the iPhone Duo in closed mode.
How much heavier is the iPhone Duo?
The iPhone Duo weighs 80 grams more than the iPhone X, making the weight difference noticeable.
Which phone has a larger display?
The iPhone X has a 5.8 inch display while the iPhone Duo has a 5.4 inch display when closed.
Which phone is easier to use one-handed?
The iPhone X is easier to use one-handed and is better for small hands than the iPhone Duo.
Will either phone fit in a jeans pocket?
The iPhone X fits in a typical men's jeans pocket but the iPhone Duo does not fit in median men's or women's pockets.
Is the iPhone Duo a worthy size upgrade over the iPhone X?
Whether the iPhone Duo is a worthy size upgrade over the iPhone X depends on your priorities since it is shorter but wider and heavier.