No one in the mobile phone industry seems to ask such a question: How about using polycarbonate? I can't forget the luxury that I used when I first used the Nokia N9. It's a short-lived MeeGo smartphone made from thick, pillow-shaped polycarbonate sheets that are colorful and ergonomic. Nokia later continued to use this design on its Windows Phone Lumia 800 and other devices, and everyone who touched these phones was impressed. The failure of the Windows Phone platform has fascinated the design, and since then, no company seems to be interested in re-using it.
I just think that consumers are interested in this. Let any of your friends choose one of the smooth, fragile and easily fingerprinted glass casings and the matte, colorful and durable polycarbonate casing. I think most of them will choose the latter. Polycarbonate is as transparent as glass to radio waves. Although plastic may seem cheap, if it is well-made, the effect is not necessarily worse than glass, such as the one Nokia used in the past.
I don't mind bidding farewell to metal smartphones. Although the phone case material does not affect the call, the entire mobile phone industry has determined that glass is the only alternative material, but I am very disappointed. Glass is far from a perfect solution, and mobile phone manufacturers should not accept such a solution. I hope to bring back some design diversity in 2019. In the past, it was because of the diversity of designs that the mobile phone made people feel very excited at first glance.