iPhone X vs iPhone 18 Pro Max
Quick answer
The iPhone 18 Pro Max is 19.8 millimetres0.78 inches taller and 75 grams2.65 ounces heavier than the iPhone X.
The iPhone X on Amazon (paid link) is stuck on its final iOS version, whereas the iPhone 18 Pro Max (paid link) launched this month with the newest software and a battery that lasts substantially longer. The new device is heavier and wider, selling for $1299 new versus around $150 renewed for the old model.
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 18 Pro Max
from $1,299 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)
Paid link.
TRUE SCALE · 1.3 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 X: 143.6 by 70.9 by 7.7 millimetres, 174 grams. iPhone 18 Pro Max: 163.4 by 78 by 8.75 millimetres, 249 grams.
X, 18 Pro Max shown at 2.1 pixels per millimetre.
iPhone X
from $999 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)iPhone 18 Pro Max
from $1,299 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)
Paid link.
Height: X 143.6 millimetres, 18 Pro Max 163.4 millimetres.Height: X 5.65 inches, 18 Pro Max 6.43 inches.Width: X 70.9 millimetres, 18 Pro Max 78.0 millimetres.Width: X 2.79 inches, 18 Pro Max 3.07 inches.Depth: X 7.70 millimetres, 18 Pro Max 8.75 millimetres.Depth: X 0.30 inches, 18 Pro Max 0.34 inches.Weight: X 174 grams, 18 Pro Max 249 grams.Weight: X 6.14 ounces, 18 Pro Max 8.78 ounces.
Specifications
| Specification | X | 18 Pro Max |
|---|---|---|
| Height | 143.6 millimetres5.65 inches | 163.4 millimetres, 19.8 millimetres more6.43 inches, 0.78 inches more |
| Width | 70.9 millimetres2.79 inches | 78.0 millimetres, 7.1 millimetres more3.07 inches, 0.28 inches more |
| Depth | 7.70 millimetres0.30 inches | 8.75 millimetres, 1.05 millimetres more0.34 inches, 0.04 inches more |
| Weight | 174 grams6.14 ounces | 249 grams, 75 grams more8.78 ounces, 2.65 ounces more |
| Volume | 78.4 cubic centimetres4.78 cubic inches | 111.5 cubic centimetres, 33.1 cubic centimetres more6.81 cubic inches, 2.02 cubic inches more |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 83 percent | 91 percent, 8 percent more |
| Display size — Screen size is always quoted in inches. | 5.8 inches | 6.9 inches, 1.1 inches more |
| Resolution | 1125 × 2436 | 1320 × 2868 |
| Pixel density | 458 pixels per inch | 460 pixels per inch, 2 pixels per inch more |
| Cutout | Notch | Dynamic Island |
| Rear main | 12MP | 48MP Fusion, variable aperture f/1.48-f/4.0 |
| Rear ultra-wide | — | 48MP Fusion f/2.2 |
| Rear telephoto | — | 48MP Fusion 100mm (4x optical, 8x optical-quality) |
| Front camera | 7MP | 18MP Center Stage f/1.9 |
| Chip | A11 Bionic | A20 Pro |
| Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity. | 13 hrs | 45 hrs |
| Port | Lightning | USB-C |
| Wireless | 4G LTE · Wi-Fi · Bluetooth | 5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem |
| Water resistance | IP67 (1m for 30 min) | IP68 (6m for 30 min) |
| Storage | 64 – 256 GB | 256 GB – 2 TB |
| Launch price — Base configuration at launch, in US dollars. | 999 dollars | 1,299 dollars, 300 dollars more |
| Released | Nov 2017 | Sep 2026 |
| Status | Legacy | Current |
Dimensions
The iPhone 18 Pro Max is 19.8 mm (0.78 in) taller, 7.1 mm (0.28 in) wider, 1.05 mm (0.04 in) thicker and 75 g (2.65 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 18 Pro Max measures 163.4 × 78.0 × 8.75 mm (6.43 × 3.07 × 0.34 in) and weighs 249 g (8.78 oz).
Also compared with iPhone X
Questions about these phones
How much bigger is the iPhone 18 Pro Max than the iPhone X?
The iPhone 18 Pro Max is 19.8 mm taller and 7.1 mm wider than the iPhone X.
How much heavier is the iPhone 18 Pro Max compared to the iPhone X?
The iPhone 18 Pro Max weighs 75 g more than the iPhone X, and this weight difference is noticeable.
What is the screen size difference between the iPhone X and iPhone 18 Pro Max?
The iPhone 18 Pro Max has a 6.9 inch screen, which is 1.1 inches larger than the iPhone X.
Which phone is easier to use one-handed?
The iPhone X is easier to use one-handed and better for small hands than the iPhone 18 Pro Max.
Do these phones fit in a typical men's jeans pocket?
Both phones fit in a typical men's jeans pocket, but the iPhone X is more pocketable overall.
Is the size difference worth it for upgrading from iPhone X to iPhone 18 Pro Max?
The upgrade adds significant size and weight, so it depends on whether you prioritize screen size over portability.