iPhone Duo vs iPhone XS Max
Quick answer
The iPhone XS Max is 39.7 millimetres1.56 inches taller and 46 grams1.62 ounces lighter than the iPhone Duo.
The iPhone XS Max is 87.2 millimetres3.43 inches narrower and 39.7 millimetres1.56 inches taller than the iPhone Duo.
The XS Max on Amazon (paid link) is stuck on iOS 18 and will not receive further updates. The Duo (paid link) offers days longer of use between charges and ships with the newest operating system. If your current phone no longer gets support, the Duo is the clear choice.
Paid link.
Easier one-handed: iPhone Duo
Pocket: iPhone XS Max
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 Max
from $1,099 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 · 2.1 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 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. iPhone XS Max: 157.5 by 77.4 by 7.7 millimetres, 208 grams.
Duo, XS Max shown at 2.1 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 Max
from $1,099 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)
Paid link.
Height: Duo 117.8 millimetres, XS Max 157.5 millimetres.Height: Duo 4.64 inches, XS Max 6.20 inches.Width: Duo 84.1 millimetres, XS Max 77.4 millimetres.Width: Duo 3.31 inches, XS Max 3.05 inches.Depth: Duo 11.30 millimetres, XS Max 7.70 millimetres.Depth: Duo 0.44 inches, XS Max 0.30 inches.Weight: Duo 254 grams, XS Max 208 grams.Weight: Duo 8.96 ounces, XS Max 7.34 ounces.
Height: Duo 117.8 millimetres, XS Max 157.5 millimetres.Height: Duo 4.64 inches, XS Max 6.20 inches.Width: Duo 164.6 millimetres, XS Max 77.4 millimetres.Width: Duo 6.48 inches, XS Max 3.05 inches.Depth: Duo 5.20 millimetres, XS Max 7.70 millimetres.Depth: Duo 0.20 inches, XS Max 0.30 inches.Weight: Duo 254 grams, XS Max 208 grams.Weight: Duo 8.96 ounces, XS Max 7.34 ounces.
Specifications
| Specification | Duo | XS Max |
|---|---|---|
| Height | 117.8 millimetres4.64 inches117.8 millimetres4.64 inches | 157.5 millimetres, 39.7 millimetres more6.20 inches, 1.56 inches more157.5 millimetres, 39.7 millimetres more6.20 inches, 1.56 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 | 77.4 millimetres, 6.7 millimetres less3.05 inches, 0.26 inches less77.4 millimetres, 87.2 millimetres less3.05 inches, 3.43 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 | 208 grams, 46 grams less7.34 ounces, 1.62 ounces less208 grams, 46 grams less7.34 ounces, 1.62 ounces less |
| Volume | 111.9 cubic centimetres6.83 cubic inches100.8 cubic centimetres6.15 cubic inches | 93.9 cubic centimetres, 18.1 cubic centimetres less5.73 cubic inches, 1.10 cubic inches less93.9 cubic centimetres, 7.0 cubic centimetres less5.73 cubic inches, 0.42 cubic inches less |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 89 percent90 percent | 84 percent, 4 percent less84 percent, 6 percent less |
| Display size — Screen size is always quoted in inches. | 5.4 inches7.6 inches | 6.5 inches, 1.1 inches more6.5 inches, 1.1 inches less |
| Resolution | 1398 × 20341878 × 2670 | 1242 × 26881242 × 2688 |
| 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 | 15 hrs15 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 | 1,099 dollars, 900 dollars less1,099 dollars, 900 dollars less |
| Released | Oct 2026Oct 2026 | Sep 2018Sep 2018 |
| Status | CurrentCurrent | LegacyLegacy |
Dimensions
The iPhone XS Max is 39.7 mm (1.56 in) taller, 6.7 mm (0.26 in) narrower, 3.60 mm (0.14 in) thinner and 46 g (1.62 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 Max measures 157.5 × 77.4 × 7.70 mm (6.20 × 3.05 × 0.30 in) and weighs 208 g (7.34 oz).
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Questions about these phones
How much taller is the iPhone XS Max than the iPhone Duo?
The iPhone XS Max is 39.7 mm taller than the iPhone Duo when the iPhone Duo is closed. The iPhone XS Max stands at 157.5 mm while the iPhone Duo is 117.8 mm tall.
Which phone is heavier between the iPhone Duo and the iPhone XS Max?
The iPhone Duo is heavier at 254 g compared to the iPhone XS Max at 208 g. This weight difference is noticeable.
How does the screen size of the iPhone XS Max compare to the iPhone Duo?
The iPhone XS Max has a 6.5 inch screen while the iPhone Duo has a 5.4 inch screen in closed mode. The iPhone XS Max display is about 1.1 inches larger.
Is the iPhone Duo better for one-handed use than the iPhone XS Max?
Yes, the iPhone Duo is considered easier for one-handed use and better for small hands than the iPhone XS Max. Its shorter height contributes to this handling advantage.
Which phone fits 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 width is 77.4 mm compared to the iPhone Duo width of 84.1 mm.
Is upgrading from the iPhone XS Max to the iPhone Duo worth it for size?
Upgrading from the iPhone XS Max to the iPhone Duo is not worth it for size alone. The iPhone XS Max is taller but the iPhone Duo is shorter and wider.