Perry Oosting, COO of Vertu (British luxury mobile phone manufacturer), expressed in the interview with Tages Anzeiger when the previous partnership between Vertu and Apple was mentioned that although Apple has hoped to use sapphire glass screen on the iPhone, the plan ultimately failed due to the limitations of mass production. Oosting believes that the 3rd generation of Gorilla scratch-resistant glass produced by Corning is more suitable for iPhone. As a relatively expensive material, Vertu previously used sapphire glass screen in its phones.

Oosting also commented on the development direction of the smart phone in the future. He believes that people should work to reduce the mass production of smart phones, and break the significance of the phone itself with the use of rare materials. Of course, it is not surprising that chief operating officer of a luxury goods company said phrases like that, but Apple does not agree with his view. However, according to the report from MacRumors, recently at least two former employees of Vertu switched to Apple.

As a scratch-proof glass with the best reputation, the third generation of Corning Gorilla glass will become the first choice of high-end smart phones and tablets, and it was used in Samsung's Galaxy S4. In addition, the previous two generations of Gorilla glass have also applied in some best-selling models, such as iPhone 4 and Nexus 4.

But the camera part of iPhone 5 adopted sapphire glass. In addition, there are rumors that the Home key on iPhone 5S will also use sapphire glass to improve service life. Although the sapphire glass was once considered as the best material to produce mobile phone screen in the future, but due to various reasons, it is still difficult to make sapphire glass screen universal.