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iPhone 17 vs iPhone 18 Pro Max

Quick answer

The iPhone 18 Pro Max is 6.5 millimetres0.26 inches wider and 72 grams2.54 ounces heavier than the iPhone 17.

The iPhone 18 Pro Max on Amazon (paid link) just launched with a bigger screen and lasting battery, but it is much heavier and costs significantly more than the iPhone 17 (paid link). If you want the latest camera tools and can handle the extra weight, the Max is tempting, yet the 17 remains a compelling daily driver for most. Go with the 17 unless you specifically need the larger display and pro features.

Paid link.

Easier one-handediPhone 17

PocketiPhone 17

Weight differenceNoticeable

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Paid link.

HeightWidthDepthWeight17149.6 millimetres5.89 inches71.5 millimetres2.81 inches7.95 millimetres0.31 inches177 grams6.24 ounces18 Pro Max163.4 millimetres, 13.8 millimetres more6.43 inches, 0.54 inches more78.0 millimetres, 6.5 millimetres more3.07 inches, 0.26 inches more8.75 millimetres, 0.80 millimetres more0.34 inches, 0.03 inches more249 grams, 72 grams more8.78 ounces, 2.54 ounces more

Height: 17 149.6 millimetres, 18 Pro Max 163.4 millimetres.Height: 17 5.89 inches, 18 Pro Max 6.43 inches.Width: 17 71.5 millimetres, 18 Pro Max 78.0 millimetres.Width: 17 2.81 inches, 18 Pro Max 3.07 inches.Depth: 17 7.95 millimetres, 18 Pro Max 8.75 millimetres.Depth: 17 0.31 inches, 18 Pro Max 0.34 inches.Weight: 17 177 grams, 18 Pro Max 249 grams.Weight: 17 6.24 ounces, 18 Pro Max 8.78 ounces.

Specifications

Specifications for iPhone 17, iPhone 18 Pro Max. Differences are given against iPhone 17.
Specification1718 Pro Max
Height149.6 millimetres5.89 inches163.4 millimetres, 13.8 millimetres more6.43 inches, 0.54 inches more
Width71.5 millimetres2.81 inches78.0 millimetres, 6.5 millimetres more3.07 inches, 0.26 inches more
Depth7.95 millimetres0.31 inches8.75 millimetres, 0.80 millimetres more0.34 inches, 0.03 inches more
Weight177 grams6.24 ounces249 grams, 72 grams more8.78 ounces, 2.54 ounces more
Volume85.0 cubic centimetres5.19 cubic inches111.5 cubic centimetres, 26.5 cubic centimetres more6.81 cubic inches, 1.62 cubic inches more
Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure.90 percent91 percent, the same
Display size — Screen size is always quoted in inches.6.3 inches6.9 inches, 0.6 inches more
Resolution1206 × 26221320 × 2868
Pixel density460 pixels per inch460 pixels per inch, the same
CutoutDynamic IslandDynamic Island
Rear main48MP48MP 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 camera12MP18MP Center Stage f/1.9
ChipA19A20 Pro
Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity.30 hrs45 hrs
PortUSB-CUSB-C
Wireless5G · Wi-Fi · Bluetooth5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem
Water resistanceIP68 (6m for 30 min)IP68 (6m for 30 min)
Storage256 – 512 GB256 GB – 2 TB
Launch price — Base configuration at launch, in US dollars.799 dollars1,299 dollars, 500 dollars more
ReleasedSep 2025Sep 2026
StatusCurrentCurrent

Dimensions

The iPhone 18 Pro Max is 13.8 mm (0.54 in) taller, 6.5 mm (0.26 in) wider, 0.80 mm (0.03 in) thicker and 72 g (2.54 oz) heavier than the iPhone 17. The iPhone 17 measures 149.6 × 71.5 × 7.95 mm (5.89 × 2.81 × 0.31 in) and weighs 177 g (6.24 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 17

Questions about these phones

How much bigger is the iPhone 18 Pro Max than the iPhone 17?

The iPhone 18 Pro Max is 13.8 mm taller, 6.5 mm wider, and 0.8 mm deeper than the iPhone 17.

Is the iPhone 18 Pro Max heavier than the iPhone 17?

The iPhone 18 Pro Max weighs 72 grams more than the iPhone 17.

Which phone has a larger screen?

The iPhone 18 Pro Max has a 6.9 inch display, which is 0.6 inch larger than the iPhone 17 screen.

Which phone is easier to use one handed?

The iPhone 17 is easier to use one handed and better for small hands than the iPhone 18 Pro Max.

Do both phones fit in a typical men's jeans pocket?

Both phones fit in a typical men's jeans pocket, but the iPhone 17 is considered more pocketable.

Is the size upgrade from iPhone 17 to iPhone 18 Pro Max worth it?

The size only upgrade from iPhone 17 to iPhone 18 Pro Max is not considered worth it based on the dimensions and weight increase.