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iPhone 18 Pro Max size and dimensions

Quick answer

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) gives you the largest screen Apple makes alongside battery life that easily handles the longest days. It is a heavy device that demands two hands and deep pockets, but it delivers absolute top-tier capability. Apple sells it for $1,299 now.

Paid link.

One-handedNo

PocketNo

Feels heavyYes

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

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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.
Specification18 Pro Max
Height163.4 millimetres6.43 inches
Width78.0 millimetres3.07 inches
Depth8.75 millimetres0.34 inches
Weight249 grams8.78 ounces
Volume111.5 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
Resolution1320 × 2868
Pixel density460 pixels per inch
CutoutDynamic Island
Rear main48MP Fusion, variable aperture f/1.48-f/4.0
Rear ultra-wide48MP Fusion f/2.2
Rear telephoto48MP Fusion 100mm (4x optical, 8x optical-quality)
Front camera18MP Center Stage f/1.9
ChipA20 Pro
Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity.45 hrs
PortUSB-C
Wireless5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem
Water resistanceIP68 (6m for 30 min)
Storage256 GB – 2 TB
Launch price — Base configuration at launch, in US dollars.1,299 dollars
ReleasedSep 2026
StatusCurrent

Questions about these phones

What are the dimensions of the iPhone 18 Pro Max?

The iPhone 18 Pro Max measures 163.4 by 78.0 by 8.75 mm and weighs 249 g.

How big is the screen on the iPhone 18 Pro Max?

The iPhone 18 Pro Max features a 6.9-inch display with a resolution of 1320 by 2868 pixels.

Can you use the iPhone 18 Pro Max with one hand?

The iPhone 18 Pro Max is not suited for comfortable one-handed use due to its large size.

Does the iPhone 18 Pro Max fit in a pocket?

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

How much does the iPhone 18 Pro Max weigh in the hand?

Weighing 249 g, the iPhone 18 Pro Max feels heavy during extended handling.

Who is the iPhone 18 Pro Max designed for?

The iPhone 18 Pro Max suits users who want a massive canvas and maximum battery endurance.