How long is an iPhone 16 Pro Max? It is 6.42 inches (163 mm) tall, according to Apple’s iPhone 16 Pro Max Tech Specs page. Below are its full dimensions, how the 6.9-inch screen differs from body length, and how it compares with other iPhones.
How long is an iPhone 16 Pro Max in inches, cm and mm?
The iPhone 16 Pro Max is 6.42 inches long, which works out to 163 mm or 16.3 cm. Apple lists that figure, plus width, depth and weight, on its official Tech Specs page for the model, which it published when the phone launched in September 2024.
| Measurement | Inches | Millimetres | Centimetres |
|---|---|---|---|
| Height (length) | 6.42 | 163 | 16.3 |
| Width | 3.06 | 77.6 | 7.76 |
| Depth | 0.32 | 8.25 | 0.825 |
The same Apple page puts the weight at 227 grams, or 7.99 ounces. For a sense of scale, 6.42 inches is a little under six and a half inches, so most standard 15 cm rulers are slightly too short to measure it end to end.
Why your phone may measure slightly differently
Apple’s spec page carries a footnote saying size and weight vary by configuration and manufacturing process. A home measurement that lands a hair away from 163 mm is normal for that reason.
How thick is the iPhone 16 Pro Max with the camera bump?
Apple’s 8.25 mm depth describes the main body. PhoneArena’s size guide lists about 12.25 mm once the rear camera bump is included. That is a third-party measurement, not an Apple figure.
Users often report a thicker reading than the spec sheet when they measure across the camera bump, which explains most of the confusion over depth.
Is the 6.9-inch screen the same as the phone’s length?
No. The 6.9-inch figure is the screen’s diagonal, measured corner to corner, and the body itself is 6.42 inches tall. Apple announced the iPhone 16 Pro Max on 9 September 2024 with that 6.9-inch display, as reported by TechCrunch.
Apple’s spec page adds a detail most buyers miss. Because the screen has rounded corners, it measures 6.86 inches diagonally when treated as a standard rectangle, and the viewable area is a little smaller than that.
How long is an iPhone 16 Pro Max screen from top to bottom?
The Big Phone Store, a UK refurbished phone retailer, calculates the display at about 159.1 mm tall and 73.4 mm wide, with a 91.4% screen-to-body ratio. Apple doesn’t publish screen height, so treat those numbers as estimates.
On those figures, the frame and borders add only about 4 mm to the iPhone 16 Pro Max’s height. Apple’s thin display borders are the reason a larger screen fits in a body that grew so little.
Buyers often assume a 6.9-inch phone is 6.9 inches long, then find the body is close to half an inch shorter than that.
iPhone 16 Pro Max size compared with other iPhones
The iPhone 16 Pro Max is the second-longest phone in this group, behind its own successor by less than half a millimetre. The figures below come from Apple’s Tech Specs pages, with the 16 Pro numbers as reported by 9to5Mac and Gadget Hacks from Apple’s launch specs.
| Model | Height | Width | Depth | Weight |
|---|---|---|---|---|
| iPhone 15 Pro Max | 159.9 mm | 76.7 mm | 8.25 mm | 221 g |
| iPhone 16 Pro | 149.6 mm | 71.5 mm | 8.25 mm | 199 g |
| iPhone 16 Plus | 160.9 mm | 77.8 mm | 7.80 mm | 199 g |
| iPhone 16 Pro Max | 163 mm | 77.6 mm | 8.25 mm | 227 g |
| iPhone 17 Pro Max | 163.4 mm | 78.0 mm | 8.75 mm | 233 g |
Against the iPhone 15 Pro Max
The iPhone 16 Pro Max is 3.1 mm longer, 0.9 mm wider and 6 g heavier than the 15 Pro Max, while depth stayed at 8.25 mm. The screen grew from 6.7 to 6.9 inches over the same period.
Against the iPhone 17 Pro Max
Its successor is 0.4 mm longer, 0.4 mm wider, 0.5 mm thicker and 6 g heavier, per Apple. Both phones use a 6.9-inch screen, so the gap you feel in the hand is mostly weight and thickness.
Against the iPhone 16 Pro and 16 Plus
Next to the 16 Pro, the Pro Max is 13.4 mm longer, 6.1 mm wider and 28 g heavier. Gadget Hacks described the gap as more than half an inch in length. The 16 Plus sits closer, at 2.1 mm shorter and 28 g lighter.
People moving up from a 6.1-inch iPhone often say the extra length is what they notice first, mainly when reaching for the top of the screen.
What does the iPhone 16 Pro Max’s length mean in daily use?
At 163 mm, this is a two-handed phone for most people. PhoneArena’s hands-on size guide reached that conclusion after testing thumb reach and pocket fit with the device.
One-handed use
PhoneArena found the thumb could not reach across the screen when holding the iPhone 16 Pro Max in one hand. It concluded that most owners will need two hands to type.
Pocket fit
PhoneArena also called it a tight squeeze in a regular front jeans pocket. Pocket depth varies a lot between brands and cuts, so your result may differ.
Adding a case
Apple publishes no figure for this. A case wraps the edges, so expect the phone to grow slightly in every direction. The case maker’s listing is the place to check exact outer dimensions.
Owners often report that the iPhone 16 Pro Max fits the hand well enough but sits higher in a pocket than they expected.
How long does the iPhone 16 Pro Max battery last?
If “how long” means battery life, Apple rates the iPhone 16 Pro Max at up to 33 hours of video playback, 29 hours of streamed video and 105 hours of audio playback. Those are lab figures under Apple’s own test conditions.
Mixed-use tests come in lower. GSMArena’s review, published on 1 October 2024, recorded an Active Use score of 17 hours 18 minutes from the 4,685 mAh battery.
Users often report that screen brightness and weak mobile signal cut runtime more than anything else.
Can you still buy an iPhone 16 Pro Max in 2026?
Not from Apple. Apple stopped selling it on 9 September 2025, the day it announced the iPhone 17 lineup, according to MacRumors. Refurbished and used units are still widely sold by third parties.
Apple’s current Pro Max is the iPhone 18 Pro Max, which replaced the 17 Pro Max in September 2026, as reported by Business Today.
When buying a case for an older phone, pick one listed for the 16 Pro Max by name, because the newer bodies differ slightly in size.
Second-hand buyers often check the model name under Settings, General, About to confirm which Pro Max they are getting.
Final check before you buy
So, how long is an iPhone 16 Pro Max? It is 6.42 inches, or 163 mm. Before buying, hold a ruler against your current phone and your usual pocket to see how that length will feel day to day.
iPhone 16 Pro Max size FAQ
Is the iPhone 16 Pro Max bigger than the iPhone 15 Pro Max?
Yes. Per Apple, it is 163 mm long and 77.6 mm wide, against 159.9 mm and 76.7 mm for the 15 Pro Max. Both are 8.25 mm deep.
How long is an iPhone 16 Pro Max in cm?
It is 16.3 cm long, 7.76 cm wide and 0.825 cm deep, based on Apple’s Tech Specs page for the model.
Is the iPhone 16 Pro Max the same size as the iPhone 17 Pro Max?
Close, but not identical. The 17 Pro Max is 0.4 mm longer, 0.4 mm wider and 0.5 mm thicker. Both have a 6.9-inch screen.
How much does the iPhone 16 Pro Max weigh?
Apple lists it at 227 grams (7.99 ounces). That is 28 g more than the iPhone 16 Pro and 6 g less than the iPhone 17 Pro Max.
Does Apple still sell the iPhone 16 Pro Max?
No. Apple discontinued it on 9 September 2025 after announcing the iPhone 17 lineup. Refurbished and used units are still available from third-party sellers.
