iPhone 18 Pro Max vs iPhone 13 Pro Max
Quick answer
The iPhone 13 Pro Max is 1.10 millimetres0.04 inches thinner than the iPhone 18 Pro Max.
The iPhone 18 Pro Max on Amazon (paid link) launched last month, and while the body feels familiar, the battery life is a genuine standout. Apple sells it for $1,299, whereas a renewed iPhone 13 Pro Max (paid link) runs around $400 and still gets current updates. Choose the 18 for endurance and smarts; the 13 holds up if you watch the price.
Paid link.
Easier one-handed: iPhone 13 Pro Max
Pocket: iPhone 13 Pro Max
Weight difference: Not noticeable
iPhone 18 Pro Max
from $1,299 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)iPhone 13 Pro Max
from $1,099 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (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 18 Pro Max: 163.4 by 78 by 8.75 millimetres, 249 grams. iPhone 13 Pro Max: 160.8 by 78.1 by 7.65 millimetres, 240 grams.
18 Pro Max, 13 Pro Max shown at 2.1 pixels per millimetre.
iPhone 18 Pro Max
from $1,299 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)iPhone 13 Pro Max
from $1,099 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)
Paid link.
Height: 18 Pro Max 163.4 millimetres, 13 Pro Max 160.8 millimetres.Height: 18 Pro Max 6.43 inches, 13 Pro Max 6.33 inches.Width: 18 Pro Max 78.0 millimetres, 13 Pro Max 78.1 millimetres.Width: 18 Pro Max 3.07 inches, 13 Pro Max 3.07 inches.Depth: 18 Pro Max 8.75 millimetres, 13 Pro Max 7.65 millimetres.Depth: 18 Pro Max 0.34 inches, 13 Pro Max 0.30 inches.Weight: 18 Pro Max 249 grams, 13 Pro Max 240 grams.Weight: 18 Pro Max 8.78 ounces, 13 Pro Max 8.47 ounces.
Specifications
| Specification | 18 Pro Max | 13 Pro Max |
|---|---|---|
| Height | 163.4 millimetres6.43 inches | 160.8 millimetres, 2.6 millimetres less6.33 inches, 0.10 inches less |
| Width | 78.0 millimetres3.07 inches | 78.1 millimetres, 0.1 millimetres more3.07 inches, the same |
| Depth | 8.75 millimetres0.34 inches | 7.65 millimetres, 1.10 millimetres less0.30 inches, 0.04 inches less |
| Weight | 249 grams8.78 ounces | 240 grams, 9 grams less8.47 ounces, 0.32 ounces less |
| Volume | 111.5 cubic centimetres6.81 cubic inches | 96.1 cubic centimetres, 15.4 cubic centimetres less5.86 cubic inches, 0.94 cubic inches less |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 91 percent | 87 percent, 3 percent less |
| Display size — Screen size is always quoted in inches. | 6.9 inches | 6.7 inches, 0.2 inches less |
| Resolution | 1320 × 2868 | 1284 × 2778 |
| Pixel density | 460 pixels per inch | 458 pixels per inch, 2 pixels per inch less |
| Cutout | Dynamic Island | Notch |
| Rear main | 48MP Fusion, variable aperture f/1.48-f/4.0 | 48MP |
| Rear ultra-wide | 48MP Fusion f/2.2 | — |
| Rear telephoto | 48MP Fusion 100mm (4x optical, 8x optical-quality) | — |
| Front camera | 18MP Center Stage f/1.9 | 12MP |
| Chip | A20 Pro | A15 Bionic |
| Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity. | 45 hrs | 28 hrs |
| Port | USB-C | Lightning |
| Wireless | 5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem | 4G LTE · Wi-Fi · Bluetooth |
| Water resistance | IP68 (6m for 30 min) | IP68 (6m for 30 min) |
| Storage | 256 GB – 2 TB | 128 GB – 1 TB |
| Launch price — Base configuration at launch, in US dollars. | 1,299 dollars | 1,099 dollars, 200 dollars less |
| Released | Sep 2026 | Sep 2021 |
| Status | Current | Discontinued |
Dimensions
The iPhone 13 Pro Max is 2.6 mm (0.10 in) shorter, 0.1 mm wider, 1.10 mm (0.04 in) thinner and 9 g (0.32 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 13 Pro Max measures 160.8 × 78.1 × 7.65 mm (6.33 × 3.07 × 0.30 in) and weighs 240 g (8.47 oz).
Also compared with iPhone 18 Pro Max
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- iPhone 18 Pro Max vs iPhone 16 Plus
- iPhone 18 Pro Max vs iPhone 16
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- iPhone 18 Pro Max vs iPhone 17 Pro
- iPhone 18 Pro Max vs iPhone 16 Pro
Questions about these phones
How much bigger is the iPhone 18 Pro Max than the iPhone 13 Pro Max?
The iPhone 18 Pro Max is 2.6 mm taller and 1.1 mm thicker than the iPhone 13 Pro Max. The iPhone 18 Pro Max weighs 9 grams more.
Is the iPhone 18 Pro Max heavier?
The iPhone 18 Pro Max weighs 249 grams and the iPhone 13 Pro Max weighs 240 grams. The difference is 9 grams.
What is the screen size difference?
The iPhone 18 Pro Max has a 6.9 inch display while the iPhone 13 Pro Max has a 6.7 inch display. This makes the newer model slightly larger on the front.
Which phone is easier to use one-handed?
The iPhone 13 Pro Max is easier to use one-handed than the iPhone 18 Pro Max. The iPhone 13 Pro Max is better suited for small hands.
Do these phones fit in a pocket?
The iPhone 13 Pro Max is more pocketable than the iPhone 18 Pro Max. Both fit in a typical men's jeans pocket.
Is the size upgrade worth it?
A size-only upgrade from the iPhone 13 Pro Max to the iPhone 18 Pro Max is not recommended. You get more battery and features but the size change is small.