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iPhone 18 Pro Max Device Thickness Allegedly Revealed

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Apple's upcoming iPhone 18 Pro Max will be the same thickness as its predecessor, measuring in at 8.75mm. The latest information comes from Weibo-based leaker Ice Universe.

Dynamic-Island-iPhone-18-Pro-Feature.jpg

The leaker suggested that the lack of evolution in Apple's Pro lineup this year is because most of the company's development focus has been on the "iPhone Ultra," its rumored foldable model.

The latest claim comes as somewhat of a surprise, given that the same leaker in March said the device would be slightly thicker than the iPhone 17 Pro Max. That chimed with a report last year alleging hardware changes in the iPhone 18 Pro Max will make it the heaviest iPhone yet.

Last November, fellow Weibo-based leaker Instant Digital said the iPhone 18 Pro Max will be slightly heavier than its predecessor, tipping its weight over 240 grams and making it the heaviest iPhone since the iPhone 14 Pro Max.

Of course, if the new model does turn out to have the same thickness, this doesn't necessarily mean its weight won't change either. The device's heaviness could still be impacted by internal hardware changes.

Digital Chat Station – another Weibo-based leaker – has claimed the iPhone 18 Pro Max will feature a bigger battery, with a capacity in the range of 5,100 to 5,200 mAh (up from 5,088 mAh in the eSim version of the iPhone 17 Pro Max).

If so, Apple may have reconfigured the internal design or miniaturized aspects of it in order to accommodate the larger battery without altering the device's thickness. Apple isn't expected to change the screen size of the iPhone 18 Pro Max, and it will feature the same 6.9-inch display as the current model.

The ‌‌iPhone 18‌‌ Pro and iPhone 18‌‌ Pro Max may feature a possibly smaller Dynamic Island, along with a next-generation C2 modem, a simplified Camera Control, and an upgraded main camera with a variable aperture. The devices are expected to be unveiled around mid-September alongside the foldable iPhone.

Article Link: iPhone 18 Pro Max Device Thickness Allegedly Revealed
 
Article Link
https://www.macrumors.com/2026/06/04/iphone-18-pro-max-device-thickness-revealed/
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i hope the modem get satellite 5g, better performance in low signal areas (and better battery management)
 
I love my iPhone Air and I applaud this news. In fact I hope they keep making the pro max thicker and heavier with a larger battery each iteration. Then those people who pollute every Air thread with their moaning about the terrible battery of the Air and how Apple should make it thicker can be pointed to the eventual 10mm thick and 350g Pro Max and told “well they made one just for you, please go away”
 
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Reactions: a_politis, brucemr, lewchenko and 5 others
240g is kind of wild when you consider what those foldable with 3 screens and a 6000 battery weight nowadays
 
I’m so confused. Doesn’t this report (no change in thickness) combined with a very recent battery leak of barely any battery size increase (which was somehow not cited here) suggest most likely Apple isn’t making big changes to the dimensions or weight of the 18 pro max? Or did I just imagine the article from the other day?

What happened to this report from 2 days ago? Which would seem to align no change in device thickness (reported here) with only a very modest increases in battery capacity?https://www.macrumors.com/2026/06/02/iphone-18-pro-battery-capacities-allegedly-leaked/
 
Saturn1217 said:
I’m so confused. ... What happened to this report from 2 days ago? ...
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It's always worth keeping in mind that this is a rumors site. Some rumors will be right, and others will be... less right. That's just the way this works.

My concern whenever I see conflicting rumors is always that someone may have just been inadvertently outed as the source for a given (inaccurate/planted) rumor... and may have just lost their job as a result.
 
In the latest series of For all Mankind you see them using what looks like iPhones that are as thick as bricks.

Or the iPhone Pro Max!

Heavy.
Because the battery tech Apple uses is old. Apple could be doing so much more to keep the weight down.
 
lewchenko said:
In the latest series of For all Mankind you see them using what looks like iPhones that are as thick as bricks.
Click to expand...

I don’t really follow For All Mankind too closely. But the point is that in a timeline where humanity put all its resources into the space race and space colonisation, the development of other technologies like the internet and consumer electronics suffered. The chunky phones are because they’re a decade or so behind our timeline in many aspects of battery and semiconductor tech.
 
Reason077 said:
I don’t really follow For All Mankind too closely. But the point is that in a timeline where humanity put all its resources into the space race and space colonisation, the development of other technologies like the internet and consumer electronics suffered. The chunky phones are because they’re a decade or so behind our timeline in many aspects of battery and semiconductor tech.
Click to expand...
One would think that the opposite would happen: a hyperfocus by major nations on space technology should theoretically include work on more advanced electronics, batteries, materials, etc., including making hardware smaller and lighter so it uses less fuel to carry it into space, so that more payload can be launched per flight.
 
They usually change something slightly so that the old cases don’t fit. Gotta upsell the accessories and boost the margins.
 
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