iPhone 18 Pro Max size and dimensions
163.4 × 78.0 × 8.75 mm · 249 g · 6.9-inch display.
Quick answer
The iPhone 18 Pro Max is built for buyers prioritizing maximum display area and battery endurance over compact handling. Measuring 163.4 mm tall, 78 mm wide, and 8.75 mm thick, iPhone 18 Pro Max requires two hands for an average adult hand to navigate comfortably. A weight of 249 g makes iPhone 18 Pro Max noticeable in pockets and jacket linings. In pocket measurements, iPhone 18 Pro Max fits inside median men's jeans pockets, but iPhone 18 Pro Max does not fit inside median women's jeans pockets. The 6.9-inch display provides expansive reading space alongside 45 hours of video playback. Starting at 1299 USD, iPhone 18 Pro Max requires significant pocket space.
- iPhone 18 Pro Max fits inside median men's jeans pockets but does not fit median women's pockets.
- Reaching across the 78 mm width requires two hands for an average adult hand.
- At 249 g, iPhone 18 Pro Max produces noticeable drag in loose pockets and light jackets.
- The 6.9-inch screen provides extensive reading area alongside 45 hours of video playback.
TRUE SCALE · 1.3 PX/MM
TRUE SCALE · 1.8 PX/MM
Average adult hand · 187 mm long, 82 mm across
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.
18 Pro Max shown at 1.8 pixels per millimetre.
Height: 18 Pro Max 163.4 millimetres.Height: 18 Pro Max 6.43 inches.Width: 18 Pro Max 78.0 millimetres.Width: 18 Pro Max 3.07 inches.Depth: 18 Pro Max 8.75 millimetres.Depth: 18 Pro Max 0.34 inches.Weight: 18 Pro Max 249 grams.Weight: 18 Pro Max 8.78 ounces.
Specifications
| Specification | 18 Pro Max |
|---|---|
| Height | 163.4 millimetres6.43 inches |
| Width | 78.0 millimetres3.07 inches |
| Depth | 8.75 millimetres0.34 inches |
| Weight | 249 grams8.78 ounces |
| Volume | 111.5 cubic centimetres6.81 cubic inches |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 91 percent |
| Display size — Screen size is always quoted in inches. | 6.9 inches |
| Resolution | 1320 × 2868 |
| Pixel density | 458 pixels per inch |
| Cutout | Dynamic Island |
| Rear main | 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 | 18MP Center Stage f/1.9 |
| Chip | A20 Pro |
| Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity. | 45 hrs |
| Port | USB-C |
| Wireless | 5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem |
| Water resistance | IP68 (6m for 30 min) |
| Storage | 256 GB – 2 TB |
| Launch price — Base configuration at launch, in US dollars. | 1,299 dollars |
| Released | Sep 2026 |
| Status | Current |
Also compared with iPhone 18 Pro Max
Questions about these phones
How large is iPhone 18 Pro Max?
iPhone 18 Pro Max measures 163.4 mm in height, 78 mm in width, and 8.75 mm in depth.
How heavy does iPhone 18 Pro Max feel?
iPhone 18 Pro Max weighs 249 g, which pulls noticeably on lightweight fabric and suit pockets.
How big is the screen on iPhone 18 Pro Max?
iPhone 18 Pro Max features a 6.9-inch display designed for expansive reading and video viewing.
Can iPhone 18 Pro Max be used with one hand?
With a width of 78 mm, iPhone 18 Pro Max requires two hands for an average adult hand to operate comfortably.
Does iPhone 18 Pro Max fit in regular jeans pockets?
iPhone 18 Pro Max fits inside median men's jeans pockets, but iPhone 18 Pro Max does not fit inside median women's jeans pockets.
Who should choose iPhone 18 Pro Max?
iPhone 18 Pro Max suits users who want a 6.9-inch screen and 45 hours of video playback at 1299 USD despite the large frame.