The Sony Xperia Z3+ comes with a display protector out of the box
Unfortunately, it looks like the screen protector that the Xperia Z3+ comes with out of the box is not the best solution for protecting the screen of the device, as some recent tests reveal that the screen protector does not come with oleophobic coating. The lack of such a coating means that the protection film is a bit of a smudge magnet. Furthermore, reports also show that the screen protector's fit isn't optimal either.
On the bright side, the pre-applied screen protection can be easily removed and replaced with a solution of the user's choosing, which is an improvement over the anti-shatter protection that Sony previously employed on its smartphones, which was very hard to remove. In the user manual. Sony recommends that users keep the screen protection on, but at least the customer can decide to replace it with a better screen protection from a third-party manufacturer.