Share your experience!
Hey guys I just bought an E4 yesterday and also applied a tempered glass as soon as i opened the box to keep it safe..
Tested everything when opened the box at the shop and came home.. .
Although after returning home when I received a call and picked it up, the phone hanged itself for pretty long with a red LED turned on for eternity and restarted. This restart thing kept happening every time I answered a call ..
Later on I realised it was the tempered glass barricading the proximity sensor forcing the phone to restart! Removed the glass and the phone is awesome.. .
no need to install tempered glass...the Xperia E4 is already scratch-resistant glass installed...myself not use any kind of screen protector but keep the phone in safe condition...you can search on Youtube...the guy try scratching Xperia E4 screen with knife... 
Yup.. . But I didn't watch the video before buying the phone..
Anyways using a normal protector right now 🙂
I has installed tempered glass on my Xperia E4 Dual because i find the screen is a bit rough...no issue at all..the screen just fine....the sansor also ok... 