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iPhone 18 Pro Max vs iPhone XS

Quick answer

The iPhone XS is 19.8 millimetres0.78 inches shorter and 72 grams2.54 ounces lighter than the iPhone 18 Pro Max.

The iPhone 18 Pro Max on Amazon (paid link) just launched with the latest iOS and a battery that simply lasts longer. The XS (paid link) no longer gets updates, making it a legacy device compared to a modern flagship. For anyone needing current software support, the new model is the obvious pick.

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Easier one-handediPhone XS

PocketiPhone XS

Weight differenceNoticeable

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HeightWidthDepthWeight18 Pro Max163.4 millimetres6.43 inches78.0 millimetres3.07 inches8.75 millimetres0.34 inches249 grams8.78 ouncesXS143.6 millimetres, 19.8 millimetres less5.65 inches, 0.78 inches less70.9 millimetres, 7.1 millimetres less2.79 inches, 0.28 inches less7.70 millimetres, 1.05 millimetres less0.30 inches, 0.04 inches less177 grams, 72 grams less6.24 ounces, 2.54 ounces less

Height: 18 Pro Max 163.4 millimetres, XS 143.6 millimetres.Height: 18 Pro Max 6.43 inches, XS 5.65 inches.Width: 18 Pro Max 78.0 millimetres, XS 70.9 millimetres.Width: 18 Pro Max 3.07 inches, XS 2.79 inches.Depth: 18 Pro Max 8.75 millimetres, XS 7.70 millimetres.Depth: 18 Pro Max 0.34 inches, XS 0.30 inches.Weight: 18 Pro Max 249 grams, XS 177 grams.Weight: 18 Pro Max 8.78 ounces, XS 6.24 ounces.

Specifications

Specifications for iPhone 18 Pro Max, iPhone XS. Differences are given against iPhone 18 Pro Max.
Specification18 Pro MaxXS
Height163.4 millimetres6.43 inches143.6 millimetres, 19.8 millimetres less5.65 inches, 0.78 inches less
Width78.0 millimetres3.07 inches70.9 millimetres, 7.1 millimetres less2.79 inches, 0.28 inches less
Depth8.75 millimetres0.34 inches7.70 millimetres, 1.05 millimetres less0.30 inches, 0.04 inches less
Weight249 grams8.78 ounces177 grams, 72 grams less6.24 ounces, 2.54 ounces less
Volume111.5 cubic centimetres6.81 cubic inches78.4 cubic centimetres, 33.1 cubic centimetres less4.78 cubic inches, 2.02 cubic inches less
Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure.91 percent83 percent, 8 percent less
Display size — Screen size is always quoted in inches.6.9 inches5.8 inches, 1.1 inches less
Resolution1320 × 28681125 × 2436
Pixel density460 pixels per inch458 pixels per inch, 2 pixels per inch less
CutoutDynamic IslandNotch
Rear main48MP Fusion, variable aperture f/1.48-f/4.012MP
Rear ultra-wide48MP Fusion f/2.2—
Rear telephoto48MP Fusion 100mm (4x optical, 8x optical-quality)—
Front camera18MP Center Stage f/1.912MP
ChipA20 ProA12 Bionic
Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity.45 hrs14 hrs
PortUSB-CLightning
Wireless5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem5G · Wi-Fi 6 · Bluetooth 5.0
Water resistanceIP68 (6m for 30 min)IP67 (1m for 30 min)
Storage256 GB – 2 TB64 – 512 GB
Launch price — Base configuration at launch, in US dollars.1,299 dollars999 dollars, 300 dollars less
ReleasedSep 2026Sep 2018
StatusCurrentLegacy

Dimensions

The iPhone XS is 19.8 mm (0.78 in) shorter, 7.1 mm (0.28 in) narrower, 1.05 mm (0.04 in) thinner and 72 g (2.54 oz) lighter than the iPhone 18 Pro Max. 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). The iPhone XS measures 143.6 × 70.9 × 7.70 mm (5.65 × 2.79 × 0.30 in) and weighs 177 g (6.24 oz).

Also compared with iPhone 18 Pro Max

Questions about these phones

How much smaller is the iPhone XS than the iPhone 18 Pro Max?

The iPhone XS is 19.8 mm shorter and 7.1 mm narrower than the iPhone 18 Pro Max. The iPhone XS has a 1.1 inch smaller screen.

What is the weight difference between the iPhone XS and iPhone 18 Pro Max?

The iPhone XS weighs 177 g and the iPhone 18 Pro Max weighs 249 g. The 72 g difference is noticeable.

How do the screen sizes compare?

The iPhone XS display is 5.8 inches and the iPhone 18 Pro Max display is 6.9 inches. The iPhone 18 Pro Max screen is over an inch larger.

Which phone is better for one-handed use?

The iPhone XS is easier to use one-handed than the iPhone 18 Pro Max. The iPhone XS suits smaller hands and average adult hand sizes better.

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

Both the iPhone XS and iPhone 18 Pro Max fit in a typical men's jeans pocket. Neither fits in a median women's jeans pocket.

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

Whether upgrading for size alone is worth it depends on your preference. The iPhone 18 Pro Max is significantly larger and heavier than the iPhone XS.