Corning's Gorilla Glass 4 Promises Stronger Protection for Falls Onto Rough Surfaces - MacRumors
Skip to Content

Corning's Gorilla Glass 4 Promises Stronger Protection for Falls Onto Rough Surfaces

Corning today unveiled its new Gorilla Glass 4, its next-generation glass production that is even more resistant than previous versions to glass shattering drops. According to Corning, the company extensively studied shattered screens to understand how and why they break.

gorilla-glass4

Corning scientists examined hundreds of broken devices and found that damage caused by sharp contact accounted for more than 70 percent of field failures. The scientists then developed new drop-test methods that simulate real-world break events, based on thousands of hours analyzing cover glass that had broken in the field or laboratory.

The culmination of this testing was Gorilla Glass 4, which reportedly is two times stronger than competing products and can survive 80 percent of face-down falls onto rough surfaces such as sandpaper. The company also claims the glass retains most of its initial strength following a shatter-free fall.


Corning is long-time supplier for Apple, providing the Cupertino company with Gorilla Glass for its iPhone and iPad lineup. Apple considered using the scratch-resistant sapphire for its iPhone display, but its partnership with GT Advanced fell apart when the supplier declared bankruptcy earlier this year.

Corning says product shipments of Gorilla Glass 4 to customers are already underway, making it a strong candidate for inclusion on next year's iOS devices should sapphire remain an infeasible option.

Popular Stories

iPhone 18 Pro Deep Red Feature

iPhone 18 Pro Launching in Two Months With These 12 New Features

Friday July 24, 2026 7:26 pm PDT by
It is now late July, and that means the iPhone 18 Pro and iPhone 18 Pro Max are less than two months away. The devices are expected to look similar to the iPhone 17 Pro and iPhone 17 Pro Max, but there will still be many year-over-year changes, with rumored features including a smaller Dynamic Island, 5G via satellite, and more. Apple is expected to unveil the iPhone 18 Pro, iPhone 18 Pro...
macbook ultra

'MacBook Ultra' Coming Soon With These 12 New Features

Friday July 24, 2026 6:00 pm PDT by
Apple's first high-end MacBook redesign in five years is expected to arrive in the near future, bringing a run of firsts to the Mac. Bloomberg's Mark Gurman expects the laptop to arrive between late 2026 and early 2027, with the later window now looking more likely owing to the global memory chip shortage. Analyst Ming-Chi Kuo expects mass production to begin by late 2026. Apple last...
iPhone 18 Pro and Pro Max Feature

'Apple Upgrade' Program Launching on Tuesday

Sunday July 26, 2026 8:20 am PDT by
In his newsletter today, Bloomberg's Mark Gurman reiterated that a new "Apple Upgrade" program is set to launch in the U.S. on Tuesday, July 28. Apple will stop accepting iPhone Upgrade Program sign-ups on the same day, but he said customers who are already enrolled will be able to remain in the program "for the time being." Apple is partnering with buy-now, pay-later company Klarna on the...

Top Rated Comments

macduke Avatar
153 months ago
The culmination of this testing was Gorilla Glass 4, which reportedly is two times stronger than competing products and can survive 80 percent of face-down falls onto rough surfaces such as sandpaper.

FINALLY. Now my iPhone will survive all of those drops onto inconveniently placed sandpaper while I'm running around town.
Score: 38 Votes (Like | Disagree)
Eduardo1971 Avatar
153 months ago
Ahh, what a cute gorilla.

I want to take it home as a pet.

Oh, wait. What is this article about?
Score: 19 Votes (Like | Disagree)
153 months ago
FINALLY. Now my iPhone will survive all of those drops onto inconveniently placed sandpaper while I'm running around town.

yeah I dont get why they did not put a piece of asphalt or concrete on the bottom of their fancy new machine...
Score: 16 Votes (Like | Disagree)
_Refurbished_ Avatar
153 months ago
I was looking up images of sandpaper, when I found these inspirational words by Chris Colfer. I'm not sure how this relates to the story, but I thought it would be helpful to those with Samsung devices.
Score: 10 Votes (Like | Disagree)
153 months ago
I admire people like them, continue challenging to a higher standard.
This is an obvious contrast to the other supplier who sold out his own company.
Score: 10 Votes (Like | Disagree)
WardC Avatar
153 months ago
Corning Gorilla Glass™ 4 -- for Super-Paranoid Gorillas!

Score: 5 Votes (Like | Disagree)