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iPhone 16 Pro Max vs iPhone 18 Pro Max

Quick answer

The iPhone 18 Pro Max is the same size as the iPhone 16 Pro Max, 22 grams0.78 ounces heavier.

The iPhone 18 Pro Max on Amazon (paid link) just arrived with a chip that will keep you current longer and a battery that genuinely lasts all day. The 16 Pro Max (paid link) is still capable, but buying it renewed means paying for yesterday’s power. If you want the best endurance and support, wait for deals on the new model; otherwise the 16 remains a smart buy.

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Easier one-handedSame

PocketiPhone 16 Pro Max

Weight differenceNoticeable

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HeightWidthDepthWeight16 Pro Max163.0 millimetres6.42 inches77.6 millimetres3.06 inches8.25 millimetres0.32 inches227 grams8.01 ounces18 Pro Max163.4 millimetres, 0.4 millimetres more6.43 inches, 0.02 inches more78.0 millimetres, 0.4 millimetres more3.07 inches, 0.02 inches more8.75 millimetres, 0.50 millimetres more0.34 inches, 0.02 inches more249 grams, 22 grams more8.78 ounces, 0.78 ounces more

Height: 16 Pro Max 163.0 millimetres, 18 Pro Max 163.4 millimetres.Height: 16 Pro Max 6.42 inches, 18 Pro Max 6.43 inches.Width: 16 Pro Max 77.6 millimetres, 18 Pro Max 78.0 millimetres.Width: 16 Pro Max 3.06 inches, 18 Pro Max 3.07 inches.Depth: 16 Pro Max 8.25 millimetres, 18 Pro Max 8.75 millimetres.Depth: 16 Pro Max 0.32 inches, 18 Pro Max 0.34 inches.Weight: 16 Pro Max 227 grams, 18 Pro Max 249 grams.Weight: 16 Pro Max 8.01 ounces, 18 Pro Max 8.78 ounces.

Specifications

Specifications for iPhone 16 Pro Max, iPhone 18 Pro Max. Differences are given against iPhone 16 Pro Max.
Specification16 Pro Max18 Pro Max
Height163.0 millimetres6.42 inches163.4 millimetres, 0.4 millimetres more6.43 inches, 0.02 inches more
Width77.6 millimetres3.06 inches78.0 millimetres, 0.4 millimetres more3.07 inches, 0.02 inches more
Depth8.25 millimetres0.32 inches8.75 millimetres, 0.50 millimetres more0.34 inches, 0.02 inches more
Weight227 grams8.01 ounces249 grams, 22 grams more8.78 ounces, 0.78 ounces more
Volume104.4 cubic centimetres6.37 cubic inches111.5 cubic centimetres, 7.2 cubic centimetres more6.81 cubic inches, 0.44 cubic inches more
Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure.91 percent91 percent, 1 percent less
Display size — Screen size is always quoted in inches.6.9 inches6.9 inches, the same
Resolution1320 × 28681320 × 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
ChipA18 ProA20 Pro
Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity.33 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 GB – 1 TB256 GB – 2 TB
Launch price — Base configuration at launch, in US dollars.1,199 dollars1,299 dollars, 100 dollars more
ReleasedSep 2024Sep 2026
StatusDiscontinuedCurrent

Dimensions

The iPhone 18 Pro Max is 0.4 mm (0.02 in) taller, 0.4 mm (0.02 in) wider, 0.50 mm (0.02 in) thicker and 22 g (0.78 oz) heavier than the iPhone 16 Pro Max. The iPhone 16 Pro Max measures 163.0 × 77.6 × 8.25 mm (6.42 × 3.06 × 0.32 in) and weighs 227 g (8.01 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).

Questions about these phones

How much bigger is the iPhone 18 Pro Max than the iPhone 16 Pro Max?

The iPhone 18 Pro Max is 0.4 mm taller and 0.4 mm wider than the iPhone 16 Pro Max. It is also 0.5 mm deeper.

Is the iPhone 18 Pro Max noticeably heavier than the iPhone 16 Pro Max?

Yes, the iPhone 18 Pro Max weighs 22 grams more than the iPhone 16 Pro Max. This weight difference is noticeable in daily use.

Do the iPhone 16 Pro Max and iPhone 18 Pro Max have different screen sizes?

Both phones have identical 6.9 inch displays with the same resolution and pixel density.

Which phone is better for small hands, the iPhone 16 Pro Max or iPhone 18 Pro Max?

The iPhone 16 Pro Max is better for small hands due to its slightly smaller overall dimensions. Both phones are similarly difficult to use one-handed.

Does the iPhone 18 Pro Max fit in a typical men's jeans pocket?

Yes, the iPhone 18 Pro Max fits in a typical men's jeans pocket. The iPhone 16 Pro Max is slightly more pocketable.

Is upgrading from the iPhone 16 Pro Max to the iPhone 18 Pro Max worth it for size only?

No, upgrading for size only is not worth it since the screen size is identical. The main improvements are battery life and camera features.