iphonesize

iPhone Air vs iPhone 18 Pro Max

3.3 mm wider, 7.2 mm taller and 84 g heavier.

Quick answer

Choosing between iPhone Air and iPhone 18 Pro Max comes down to extreme portability versus maximum display area and endurance. iPhone Air measures 156.2 mm tall, 74.7 mm wide, and 5.64 mm deep, weighing 165 g. In contrast, iPhone 18 Pro Max measures 163.4 mm tall, 78 mm wide, and 8.75 mm deep, with a weight of 249 g. That 84 g difference between iPhone Air and iPhone 18 Pro Max is immediately noticeable in a pocket or jacket. iPhone Air offers a 6.5 inches screen that is easier to reach across with an average adult hand. iPhone 18 Pro Max provides a larger 6.9 inches screen and 45 hours of video playback compared to 27 hours on iPhone Air, but requires two hands.

  • iPhone Air feels substantially lighter in pockets and jackets at 165 g compared to 249 g.
  • The 5.64 mm profile of iPhone Air slides into pockets far more easily.
  • iPhone 18 Pro Max demands two-handed operation across its broad 78 mm width.
  • Neither phone fits inside median women's jeans pockets, though both fit median men's pockets.
HeightWidthDepthWeightAir156.2 millimetres6.15 inches74.7 millimetres2.94 inches5.64 millimetres0.22 inches165 grams5.82 ounces18 Pro Max163.4 millimetres, 7.2 millimetres more6.43 inches, 0.28 inches more78.0 millimetres, 3.3 millimetres more3.07 inches, 0.13 inches more8.75 millimetres, 3.11 millimetres more0.34 inches, 0.12 inches more249 grams, 84 grams more8.78 ounces, 2.96 ounces more

Height: Air 156.2 millimetres, 18 Pro Max 163.4 millimetres.Height: Air 6.15 inches, 18 Pro Max 6.43 inches.Width: Air 74.7 millimetres, 18 Pro Max 78.0 millimetres.Width: Air 2.94 inches, 18 Pro Max 3.07 inches.Depth: Air 5.64 millimetres, 18 Pro Max 8.75 millimetres.Depth: Air 0.22 inches, 18 Pro Max 0.34 inches.Weight: Air 165 grams, 18 Pro Max 249 grams.Weight: Air 5.82 ounces, 18 Pro Max 8.78 ounces.

Specifications

Specifications for iPhone Air, iPhone 18 Pro Max. Differences are given against iPhone Air.
SpecificationAir18 Pro Max
Height156.2 millimetres6.15 inches163.4 millimetres, 7.2 millimetres more6.43 inches, 0.28 inches more
Width74.7 millimetres2.94 inches78.0 millimetres, 3.3 millimetres more3.07 inches, 0.13 inches more
Depth5.64 millimetres0.22 inches8.75 millimetres, 3.11 millimetres more0.34 inches, 0.12 inches more
Weight165 grams5.82 ounces249 grams, 84 grams more8.78 ounces, 2.96 ounces more
Volume65.8 cubic centimetres4.02 cubic inches111.5 cubic centimetres, 45.7 cubic centimetres more6.81 cubic inches, 2.79 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.6.5 inches6.9 inches, 0.4 inches more
Resolution1260 × 27361320 × 2868
Pixel density463 pixels per inch458 pixels per inch, 6 pixels per inch less
CutoutDynamic IslandDynamic Island
Rear main48MP48MP 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 camera12MP18MP Center Stage f/1.9
ChipA19 ProA20 Pro
Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity.27 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.999 dollars1,299 dollars, 300 dollars more
ReleasedSep 2025Sep 2026
StatusCurrentCurrent

Questions about these phones

How does the size of iPhone Air compare to iPhone 18 Pro Max?

iPhone Air measures 156.2 mm tall, 74.7 mm wide, and 5.64 mm deep, while iPhone 18 Pro Max measures 163.4 mm tall, 78 mm wide, and 8.75 mm deep. This difference makes iPhone Air noticeably more compact in every dimension.

How much heavier is iPhone 18 Pro Max than iPhone Air?

iPhone 18 Pro Max weighs 249 g, which is 84 g heavier than iPhone Air at 165 g. That extra weight is clearly felt during extended handheld use or inside a jacket pocket.

How do the screens compare between iPhone Air and iPhone 18 Pro Max?

iPhone Air features a 6.5 inches screen, whereas iPhone 18 Pro Max features a larger 6.9 inches screen. The extra display space on iPhone 18 Pro Max benefits reading and video viewing.

Can iPhone Air and iPhone 18 Pro Max be used with one hand?

An average adult hand can reach across the 74.7 mm width of iPhone Air with reasonable comfort. In contrast, the 78 mm width of iPhone 18 Pro Max generally requires two hands for daily navigation.

Do iPhone Air and iPhone 18 Pro Max fit into jeans pockets?

Both iPhone Air and iPhone 18 Pro Max fit into median men's jeans pockets, but neither fits into median women's jeans pockets. The 5.64 mm depth of iPhone Air creates far less bulk than the 8.75 mm depth of iPhone 18 Pro Max.

Is upgrading to iPhone 18 Pro Max from iPhone Air worth it for size alone?

Choosing iPhone 18 Pro Max provides a larger 6.9 inches screen and 45 hours of video playback compared to 27 hours on iPhone Air, but adds 84 g of weight. For pocket comfort and easier one-handed handling, the smaller dimensions of iPhone Air remain preferable.