iPhone 15 Pro Max vs iPhone 18 Pro
Quick answer
The iPhone 18 Pro is 4.8 millimetres0.19 inches narrower and 9.9 millimetres0.39 inches shorter than the iPhone 15 Pro Max.
The iPhone 18 Pro on Amazon (paid link) sheds bulk for a more manageable grip while adding significant battery life. If you hold the iPhone 15 Pro Max (paid link) in your hand, the difference is immediate. Paying full price is a premium step up, but a renewed Max offers a cheaper path if you do not mind the heft. If you want the bigger screen along with the newer battery gains, the iPhone 18 Pro Max (paid link) is worth a look.
Paid link.
Easier one-handed: iPhone 18 Pro
Pocket: iPhone 18 Pro
Weight difference: Not noticeable
iPhone 15 Pro Max
from $1,199 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)iPhone 18 Pro
from $1,199 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)
Paid link.
TRUE SCALE · 1.4 PX/MM
TRUE SCALE · 2.1 PX/MM
Hand: US Army ANSUR II, 2012 (sex-balanced median). Pockets: The Pudding, 2018. Card: ISO/IEC 7810 ID-1.
iPhone 15 Pro Max: 159.9 by 76.7 by 8.25 millimetres, 221 grams. iPhone 18 Pro: 150 by 71.9 by 8.75 millimetres, 211 grams.
15 Pro Max, 18 Pro shown at 2.1 pixels per millimetre.
iPhone 15 Pro Max
from $1,199 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)iPhone 18 Pro
from $1,199 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)
Paid link.
Height: 15 Pro Max 159.9 millimetres, 18 Pro 150.0 millimetres.Height: 15 Pro Max 6.30 inches, 18 Pro 5.91 inches.Width: 15 Pro Max 76.7 millimetres, 18 Pro 71.9 millimetres.Width: 15 Pro Max 3.02 inches, 18 Pro 2.83 inches.Depth: 15 Pro Max 8.25 millimetres, 18 Pro 8.75 millimetres.Depth: 15 Pro Max 0.32 inches, 18 Pro 0.34 inches.Weight: 15 Pro Max 221 grams, 18 Pro 211 grams.Weight: 15 Pro Max 7.80 ounces, 18 Pro 7.44 ounces.
Specifications
| Specification | 15 Pro Max | 18 Pro |
|---|---|---|
| Height | 159.9 millimetres6.30 inches | 150.0 millimetres, 9.9 millimetres less5.91 inches, 0.39 inches less |
| Width | 76.7 millimetres3.02 inches | 71.9 millimetres, 4.8 millimetres less2.83 inches, 0.19 inches less |
| Depth | 8.25 millimetres0.32 inches | 8.75 millimetres, 0.50 millimetres more0.34 inches, 0.02 inches more |
| Weight | 221 grams7.80 ounces | 211 grams, 10 grams less7.44 ounces, 0.35 ounces less |
| Volume | 101.2 cubic centimetres6.17 cubic inches | 94.4 cubic centimetres, 6.8 cubic centimetres less5.76 cubic inches, 0.42 cubic inches less |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 90 percent | 89 percent, the same |
| Display size — Screen size is always quoted in inches. | 6.7 inches | 6.3 inches, 0.4 inches less |
| Resolution | 1290 × 2796 | 1206 × 2622 |
| Pixel density | 460 pixels per inch | 460 pixels per inch, the same |
| Cutout | Dynamic Island | Dynamic Island |
| Rear main | 48MP | 48MP 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 camera | 12MP | 18MP Center Stage f/1.9 |
| Chip | A17 Pro | A20 Pro |
| Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity. | 29 hrs | 36 hrs |
| Port | USB-C | USB-C |
| Wireless | 5G · Wi-Fi · Bluetooth | 5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem |
| Water resistance | IP68 (6m for 30 min) | IP68 (6m for 30 min) |
| Storage | 256 GB – 1 TB | 256 GB – 2 TB |
| Launch price — Base configuration at launch, in US dollars. | 1,199 dollars | 1,199 dollars, the same |
| Released | Sep 2023 | Sep 2026 |
| Status | Discontinued | Current |
Dimensions
The iPhone 18 Pro is 9.9 mm (0.39 in) shorter, 4.8 mm (0.19 in) narrower, 0.50 mm (0.02 in) thicker and 10 g (0.35 oz) lighter than the iPhone 15 Pro Max. The iPhone 15 Pro Max measures 159.9 × 76.7 × 8.25 mm (6.30 × 3.02 × 0.32 in) and weighs 221 g (7.80 oz). The iPhone 18 Pro measures 150.0 × 71.9 × 8.75 mm (5.91 × 2.83 × 0.34 in) and weighs 211 g (7.44 oz).
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Questions about these phones
How much shorter is the iPhone 18 Pro than the iPhone 15 Pro Max?
The iPhone 18 Pro is 9.9 mm shorter than the iPhone 15 Pro Max.
Is the iPhone 18 Pro lighter than the iPhone 15 Pro Max?
The iPhone 18 Pro is 10 g lighter than the iPhone 15 Pro Max.
How does the screen size of the iPhone 18 Pro compare to the iPhone 15 Pro Max?
The iPhone 18 Pro has a 6.3 inch screen while the iPhone 15 Pro Max has a 6.7 inch screen.
Which phone is easier to hold in one hand, the iPhone 18 Pro or the iPhone 15 Pro Max?
The iPhone 18 Pro is easier to use one-handed than the iPhone 15 Pro Max.
Is the iPhone 18 Pro more pocketable than the iPhone 15 Pro Max?
The iPhone 18 Pro is more pocketable than the iPhone 15 Pro Max, and both fit in a typical men's jeans pocket.
Is it worth upgrading from the iPhone 15 Pro Max to the iPhone 18 Pro just for the size difference?
Yes, the size difference between the iPhone 18 Pro and iPhone 15 Pro Max makes upgrading worth it.