According to the KGI Securities analyst Ming-Chi Kuo,
Apple will switch to a glass casing for the next generation iPhone 8 in order to
support wireless charging. 
According to Kuo, the transition from
metal to glass casing is key if Apple is to introduce iPhone 8 witha wireless charging
feature in the 2017. The entire line-up of 2017 iPhones will purportedly
get an all-glass case and Pegatron will supply the wireless charger, says Kuo.
The all-glass case will reportedly avoid issues with wireless frequency
tolerances for metal alloys that can limit charging speeds. Along with that,
Jonathan Ive has apparently wanted to introduce an iPhone that looks like a single
sheet of glass for several years.
According to the KGI Securities analyst Ming-Chi Kuo, Apple will switch to a glass casing for the next gen iPhone 8 in order to support wireless charging.
Image: Cultofmac
We believe one of the reasons why new
iPhones will switch from metal casing to glass casing is to support wireless
charging. In order to ensure a superior performance, we believe it is most
appropriate for EMS suppliers to develop and make the wireless charger because
then a comprehensive test can be conducted. As Hon Hai needs to deploy most
resources to develop and produce OLED iPhone, we expect Pegatron will be the
exclusive supplier of the wireless charger.
It’s unclear if the wireless charger
will come up with the new iPhones or it may come in separate purchase like current Airpods.

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