iPhone 18 Pro Max size and dimensions

The iPhone 18 Pro Max measures 163.46.43 by 78.03.07 by 8.75 millimetres0.34 inches and weighs 249 grams8.78 ounces.

The iPhone 18 Pro Max on Amazon (paid link) is a recent flagship that delivers exceptional battery life, keeping you powered through days of heavy use. At $1,299, it commands a premium, but the A20 Pro chip ensures smooth performance without feeling sluggish. If you want the biggest display and longest endurance Apple offers right now, this is the choice.

Paid link.

One-handed: No

Pocket: Yes

Feels heavy: Yes

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 · 1.1 PX/MM

Average adult hand · 187 mm long, 82 mm across

Hand: US Army ANSUR II, 2012 (sex-balanced median). Pockets: The Pudding, 2018. Card: ISO/IEC 7810 ID-1.

iPhone 18 Pro Max drawing: front, back and side at true scale, 163.4 × 78 × 8.75 mm

iPhone 18 Pro Max
from $1,299 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)

Paid link.

HeightWidthDepthWeight18 Pro Max163.4 millimetres6.43 inches78.0 millimetres3.07 inches8.75 millimetres0.34 inches249 grams8.78 ounces

Height: 18 Pro Max 163.4 millimetres.Height: 18 Pro Max 6.43 inches.Width: 18 Pro Max 78.0 millimetres.Width: 18 Pro Max 3.07 inches.Depth: 18 Pro Max 8.75 millimetres.Depth: 18 Pro Max 0.34 inches.Weight: 18 Pro Max 249 grams.Weight: 18 Pro Max 8.78 ounces.

Specifications

Specifications for iPhone 18 Pro Max. Differences are given against iPhone 18 Pro Max.
Specification	18 Pro Max

Height	163.4 millimetres6.43 inches
Width	78.0 millimetres3.07 inches
Depth	8.75 millimetres0.34 inches
Weight	249 grams8.78 ounces
Volume	111.5 cubic centimetres6.81 cubic inches
Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure.	91 percent

Display size — Screen size is always quoted in inches.	6.9 inches
Resolution	1320 × 2868
Pixel density	460 pixels per inch
Cutout	Dynamic Island

Rear main	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	18MP Center Stage f/1.9

Chip	A20 Pro
Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity.	45 hrs

Port	USB-C
Wireless	5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem
Water resistance	IP68 (6m for 30 min)

Storage	256 GB – 2 TB
Launch price — Base configuration at launch, in US dollars.	1,299 dollars

Released	Sep 2026
Status	Current

Dimensions

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).

Questions about these phones

How big is the iPhone 18 Pro Max?

The iPhone 18 Pro Max measures 163.4 by 78 by 8.75 millimeters. It has a volume of 111.5 cubic centimeters.

What screen size does the iPhone 18 Pro Max have?

The iPhone 18 Pro Max has a 6.9-inch display with 460 pixels per inch. The screen occupies 90.6% of the front face.

How much does the iPhone 18 Pro Max weigh?

The iPhone 18 Pro Max weighs 249 grams or 8.78 ounces. This weight makes it feel heavy in the hand.

Is the iPhone 18 Pro Max easy to use one-handed?

The iPhone 18 Pro Max is not considered easy to use one-handed. Its size and weight make it difficult to manage with one hand.

Does the iPhone 18 Pro Max fit in jeans pockets?

The iPhone 18 Pro Max fits in a typical men's jeans pocket. It does not fit in a typical women's jeans pocket.

Should I upgrade to the iPhone 18 Pro Max for a larger size?

The iPhone 18 Pro Max offers a large 6.9-inch screen and substantial build. It is suitable if you prefer bigger devices over smaller options.

iPhone 18 Pro Max size and dimensions

Quick answer

Specifications

Dimensions

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