iPhone 15 Pro vs iPhone 18 Pro Max
Quick answer
The iPhone 18 Pro Max is 7.4 millimetres0.29 inches wider and 62 grams2.19 ounces heavier than the iPhone 15 Pro.
The iPhone 15 Pro on Amazon (paid link) is renewed and offers a much lighter grip that stays comfortable all day. The iPhone 18 Pro Max (paid link) gives you vastly longer battery life, but you pay premium prices for that extra range and reach. Choose the Max only if the battery gain outweighs the added bulk.
Paid link.
Easier one-handed: iPhone 15 Pro
Pocket: iPhone 15 Pro
Weight difference: Noticeable
iPhone 15 Pro
from $999 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)iPhone 18 Pro Max
from $1,299 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)
Paid link.
TRUE SCALE · 1.3 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: 146.6 by 70.6 by 8.25 millimetres, 187 grams. iPhone 18 Pro Max: 163.4 by 78 by 8.75 millimetres, 249 grams.
15 Pro, 18 Pro Max shown at 2.1 pixels per millimetre.
iPhone 15 Pro
from $999 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)iPhone 18 Pro Max
from $1,299 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)
Paid link.
Height: 15 Pro 146.6 millimetres, 18 Pro Max 163.4 millimetres.Height: 15 Pro 5.77 inches, 18 Pro Max 6.43 inches.Width: 15 Pro 70.6 millimetres, 18 Pro Max 78.0 millimetres.Width: 15 Pro 2.78 inches, 18 Pro Max 3.07 inches.Depth: 15 Pro 8.25 millimetres, 18 Pro Max 8.75 millimetres.Depth: 15 Pro 0.32 inches, 18 Pro Max 0.34 inches.Weight: 15 Pro 187 grams, 18 Pro Max 249 grams.Weight: 15 Pro 6.60 ounces, 18 Pro Max 8.78 ounces.
Specifications
| Specification | 15 Pro | 18 Pro Max |
|---|---|---|
| Height | 146.6 millimetres5.77 inches | 163.4 millimetres, 16.8 millimetres more6.43 inches, 0.66 inches more |
| Width | 70.6 millimetres2.78 inches | 78.0 millimetres, 7.4 millimetres more3.07 inches, 0.29 inches more |
| Depth | 8.25 millimetres0.32 inches | 8.75 millimetres, 0.50 millimetres more0.34 inches, 0.02 inches more |
| Weight | 187 grams6.60 ounces | 249 grams, 62 grams more8.78 ounces, 2.19 ounces more |
| Volume | 85.4 cubic centimetres5.21 cubic inches | 111.5 cubic centimetres, 26.1 cubic centimetres more6.81 cubic inches, 1.59 cubic inches more |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 89 percent | 91 percent, 2 percent more |
| Display size — Screen size is always quoted in inches. | 6.1 inches | 6.9 inches, 0.8 inches more |
| Resolution | 1179 × 2556 | 1320 × 2868 |
| 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. | 23 hrs | 45 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 | 128 GB – 1 TB | 256 GB – 2 TB |
| Launch price — Base configuration at launch, in US dollars. | 999 dollars | 1,299 dollars, 300 dollars more |
| Released | Sep 2023 | Sep 2026 |
| Status | Discontinued | Current |
Dimensions
The iPhone 18 Pro Max is 16.8 mm (0.66 in) taller, 7.4 mm (0.29 in) wider, 0.50 mm (0.02 in) thicker and 62 g (2.19 oz) heavier than the iPhone 15 Pro. The iPhone 15 Pro measures 146.6 × 70.6 × 8.25 mm (5.77 × 2.78 × 0.32 in) and weighs 187 g (6.60 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).
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Questions about these phones
How much bigger is the iPhone 18 Pro Max than the iPhone 15 Pro?
The iPhone 18 Pro Max is 16.8 mm taller and 7.4 mm wider than the iPhone 15 Pro.
Is the iPhone 18 Pro Max heavier than the iPhone 15 Pro?
Yes, the iPhone 18 Pro Max weighs 62 grams more than the iPhone 15 Pro.
What is the screen size difference between the iPhone 15 Pro and iPhone 18 Pro Max?
The iPhone 18 Pro Max has a 6.9 inch display, which is 0.8 inches larger than the iPhone 15 Pro screen.
Which phone is easier to use one-handed?
The iPhone 15 Pro is easier to use one-handed than the iPhone 18 Pro Max.
Which phone is more pocketable?
The iPhone 15 Pro is more pocketable than the iPhone 18 Pro Max in a typical men's jeans pocket.
Is the size increase worth the upgrade from iPhone 15 Pro to iPhone 18 Pro Max?
Whether the size increase is worth the upgrade depends on your preference for a larger device.