ZAGG
Tempered glass
Screen Protection
Blue Light
Privacy
Not all glass is the same.
You might be surprised, but it is actually not the case; it does matter what you stick on your display. The differences in tempered glasses are even enormous. And for the average consumer, it is not easy to recognize when they are paying for quality and when they are throwing money at something that has no added value. Let's take a closer look at it.
HL
Hana Lindušková
31. 8. 2026 · 3 minuty

About glass

Ordinary tempered glass is simply a silicon mixture melted onto a backing film. Nothing more, nothing less. Such glasses generally protect screens from scratches and light bumps, but you shouldn't expect greater service from them. With the first bump, they usually break, and it is necessary to replace them immediately. You can buy them everywhere, in various price ranges. They are quite variably labeled. This is the category where you can get caught the most, as it depends solely on the marketing of individual manufacturers what they write on the packaging and how such products are communicated.

Value-added glass

Many manufacturers add additional features to glasses that make them much more interesting and enhance their protective properties. Sometimes you'll even find additional features and filters in the glasses that not only protect your device but can also help protect your health or well-being. And this is precisely the segment we are focusing on in our online shop.

We have long been focused on the American brand ZAGG, which is the global leader in the number of screen protectors sold each year. Rightfully so – their glasses and films have no competition.

Is it true?

Glass that lasts you more than a year and you remove it only because you want to try a different one? Yes, from ZAGG. Do you additionally want protection against blue light and antimicrobial treatment?

It is not easy to believe that something transparent is better than other transparent things. That's why tests are conducted. This one was carried out in independent UL laboratories and tested the height from which a steel ball was dropped onto the glasses 30 times. The result is the average height from which the ball was dropped, at which the glasses broke. You can compare prices and performance of brands you know against ZAGG glasses.

And what about blue light?

Another way to verify the quality of glasses is through sleep tests. An independent scientific team from SleepScore Labs evaluated the technologies used for filtering blue light in ZAGG glasses and films. They confirm their positive effect on sleep (improvement in sleep for 79% of those tested, more rested mornings for 76%, a 89% reduction in eye fatigue, and 32% higher productivity during the day) and 100% overall satisfaction with protective glasses and films with blue light filtering technologies.

And these things are simply not possible with ordinary tempered glass, and yet they are not always entirely cheap.

Be more careful when selecting your next glass and choose features that are truly worth paying for.

We always choose only ZAGG

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