If you want to give maximum protection to your Sony Xperia Z5 back, then this tempered glass protection film is the best bet! The protective glass is made of scratch-resistant 0.3 mm thin tempered glass which is placed on top of the back! If you follow the instructions below, you will not get any "bubbles" under the tempered glass. The attachment is very easy, quick and no glue is needed.
And when you need to take it off, it won't leave a mark on your smartphone.
If your phone is dropped, the protective glass absorbs as much of the impact as possible to maximise the chance of it's not the phone that breaks, but only the protective glass, saving you the cost of repair.