iPhone 18 Pro vs iPhone X
Quick answer
The iPhone X is 1.05 millimetres0.04 inches thinner and 37 grams1.31 ounces lighter than the iPhone 18 Pro.
The iPhone X on Amazon (paid link) no longer gets iOS updates, meaning it is stuck on its last version while the iPhone 18 Pro (paid link) runs the newest. You won't feel the chip speed, but you will feel the battery: the 18 Pro simply lasts longer. Apple sells the 18 Pro for $1199 now; the X is only available renewed for around $150.
Paid link.
Easier one-handed: iPhone X
Pocket: iPhone X
Weight difference: Noticeable
iPhone 18 Pro
from $1,199 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)iPhone X
from $999 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)
Paid link.
TRUE SCALE · 1.4 PX/MM
TRUE SCALE · 2.2 PX/MM
Hand: US Army ANSUR II, 2012 (sex-balanced median). Pockets: The Pudding, 2018. Card: ISO/IEC 7810 ID-1.
iPhone 18 Pro: 150 by 71.9 by 8.75 millimetres, 211 grams. iPhone X: 143.6 by 70.9 by 7.7 millimetres, 174 grams.
18 Pro, X shown at 2.2 pixels per millimetre.
iPhone 18 Pro
from $1,199 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)iPhone X
from $999 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)
Paid link.
Height: 18 Pro 150.0 millimetres, X 143.6 millimetres.Height: 18 Pro 5.91 inches, X 5.65 inches.Width: 18 Pro 71.9 millimetres, X 70.9 millimetres.Width: 18 Pro 2.83 inches, X 2.79 inches.Depth: 18 Pro 8.75 millimetres, X 7.70 millimetres.Depth: 18 Pro 0.34 inches, X 0.30 inches.Weight: 18 Pro 211 grams, X 174 grams.Weight: 18 Pro 7.44 ounces, X 6.14 ounces.
Specifications
| Specification | 18 Pro | X |
|---|---|---|
| Height | 150.0 millimetres5.91 inches | 143.6 millimetres, 6.4 millimetres less5.65 inches, 0.25 inches less |
| Width | 71.9 millimetres2.83 inches | 70.9 millimetres, 1.0 millimetres less2.79 inches, 0.04 inches less |
| Depth | 8.75 millimetres0.34 inches | 7.70 millimetres, 1.05 millimetres less0.30 inches, 0.04 inches less |
| Weight | 211 grams7.44 ounces | 174 grams, 37 grams less6.14 ounces, 1.31 ounces less |
| Volume | 94.4 cubic centimetres5.76 cubic inches | 78.4 cubic centimetres, 16.0 cubic centimetres less4.78 cubic inches, 0.97 cubic inches less |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 89 percent | 83 percent, 7 percent less |
| Display size — Screen size is always quoted in inches. | 6.3 inches | 5.8 inches, 0.5 inches less |
| Resolution | 1206 × 2622 | 1125 × 2436 |
| Pixel density | 460 pixels per inch | 458 pixels per inch, 2 pixels per inch less |
| Cutout | Dynamic Island | Notch |
| Rear main | 48MP Fusion, variable aperture f/1.48-f/4.0 | 12MP |
| Rear ultra-wide | 48MP Fusion f/2.2 | — |
| Rear telephoto | 48MP Fusion 100mm (4x optical, 8x optical-quality) | — |
| Front camera | 18MP Center Stage f/1.9 | 7MP |
| Chip | A20 Pro | A11 Bionic |
| Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity. | 36 hrs | 13 hrs |
| Port | USB-C | Lightning |
| Wireless | 5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem | 4G LTE · Wi-Fi · Bluetooth |
| Water resistance | IP68 (6m for 30 min) | IP67 (1m for 30 min) |
| Storage | 256 GB – 2 TB | 64 – 256 GB |
| Launch price — Base configuration at launch, in US dollars. | 1,199 dollars | 999 dollars, 200 dollars less |
| Released | Sep 2026 | Nov 2017 |
| Status | Current | Legacy |
Dimensions
The iPhone X is 6.4 mm (0.25 in) shorter, 1.0 mm (0.04 in) narrower, 1.05 mm (0.04 in) thinner and 37 g (1.31 oz) lighter than the iPhone 18 Pro. The iPhone 18 Pro measures 150.0 × 71.9 × 8.75 mm (5.91 × 2.83 × 0.34 in) and weighs 211 g (7.44 oz). 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).
Also compared with iPhone 18 Pro
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- iPhone 18 Pro vs iPhone 17 Air
- iPhone 18 Pro vs iPhone 17
- iPhone 18 Pro vs iPhone 17e
- iPhone 18 Pro vs iPhone 16 Plus
- iPhone 18 Pro vs iPhone 16
- iPhone 18 Pro vs iPhone 16e
- iPhone 18 Pro vs iPhone 17 Pro Max
- iPhone 18 Pro vs iPhone 16 Pro Max
Questions about these phones
How much bigger is the iPhone 18 Pro than the iPhone X?
The iPhone 18 Pro is 6.4 mm taller and 1.0 mm wider than the iPhone X. It also has a larger volume overall.
Is the iPhone 18 Pro heavier than the iPhone X?
Yes, the iPhone 18 Pro weighs 37 grams more than the iPhone X. This difference is noticeable in daily use.
What is the screen size difference between the iPhone 18 Pro and iPhone X?
The iPhone 18 Pro has a 6.3 inch display while the iPhone X has a 5.8 inch display. The newer model offers 0.5 inches more screen area.
Which phone is easier to use one-handed?
The iPhone X is easier to use one-handed than the iPhone 18 Pro. It is better suited for smaller hands.
Do these phones fit in a typical men's jeans pocket?
Both the iPhone 18 Pro and the iPhone X fit in a typical men's jeans pocket. The iPhone X is considered more pocketable overall.
Is the size upgrade from iPhone X to iPhone 18 Pro worth it?
The size upgrade from iPhone X to iPhone 18 Pro is worth it for more screen space. You gain a larger display and longer battery life.