The first thing most of us do when we get a new cell phone is to add a case and screen protector. In fact, there are already some brands like Xiaomi. Contains a small protective layer on the panel.

The latest trend in screen protectors, aside from avoiding the fear in the form of the occasional scratch, is also a tempered glass. keep our curious friends away those who want to keep an eye on our cell phone conversations.

The more you look, the less you see

Technology is advancing and screen savers are also developing with it. Today there are some tempered glasses (and even covers) that narrow the viewing angle of our mobile, thanks to some filters, so that the screen only visible to the user directlyIt blocks his view from another angle entirely.

These filters are invisible to the naked eye, but The operation is very simple: from an inclination of about 30 degrees, the screen starts to look like you are wearing sunglasses, gradually darkening as the visibility increases, until completely opaque.

Sales of these screen protectors have increased a lot in recent months, as they are extremely useful for those who are often in public places or surrounded by friends and do not want to expose the contents of their mobile phones.

The price is usually under 10 €, but All that shines is not gold: yes, your conversations will be invisible to others, but both the brightness and definition of your screen will be affectedsince you added a polarized layer.