How to choose a protective glass for a smartphone

When choosing a protective glass, you should pay attention to its compatibility with a smartphone and some other technical and operational characteristics.

How to choose a protective glass for your smartphone

How to choose a protective glass for a smartphone: what to look for Attention?

The main criteria for choosing a protective glass are:

  1. Compatible safety glass and smartphone;

  2. Protective glass design (number of layers and types);

  3. Thickness;

  4. The presence of an oleophobic coating;

  5. Glass strength;

  6. Type of glass (glossy or frosted).

There are also special types of glasses, but you should choose them. only if you plan to use in any special conditions.

Main selection criteria



Compatibility is the most important criterion when choosing a protective glass. The fact is that in addition to the display, this accessory closes and some other functional elements of the smartphone located on the front panel. For example, a proximity sensor.

  1. The proximity sensor is designed to turn off the screen of the smartphone while talking on it and preventing accidental clicks. is he works as follows – sends optical or ultrasonic wave, and then measures the time it took her to reflection from the object. Around the same work, for example, laser rangefinders.

  2. Glass is recognized by the proximity sensor as an “object”. And his it closes this sensor, the smartphone will start turning off the screen immediately after pressing the call button. This is actually inconvenient because Hang up is only possible on the active display. Besides, some modern smartphones use a proximity sensor to Enable Always On Display or Ambient Display.

  3. Therefore, in all safety glasses there is a special slot or hole for proximity sensor.

  4. Finally, the protective glass can sometimes close the front speaker, resulting in decreased subscriber audibility.

  5. Thus, by sticking an incompatible glass on the smartphone, instead of protection, you can get many problems associated with operation of the device.

You can find out about the compatibility of a smartphone and glass from technical characteristics of the latter.

In addition, safety glasses are not recommended in any way. “modify” at home. Attempts to crop or sawing an accessory will damage it. As a result, very it’s important to choose a glass that is compatible with a smartphone.

Separately, it is worth mentioning the glasses for smartphones with 2.5D screen. They should also be 2.5D – that is, with curved the edges. In this case, they will protect the ends of the display from the side strokes.

Safety glass design

Typically, the protective glass for smartphones is a laminated the canvas. It includes the following layers:

  1. Glue. Most often for gluing an accessory to the display The smartphone uses silicone. This material provides quite tight mount, which if necessary can be easily shatter by simply prying the glass over one of the edges. Are recommended accessories with silicone mount;

  2. Restraining. This layer is usually made of various polymeric materials and is a dense flexible film. It designed to prevent glass fragments from flying apart damage – for example, in the event of a fall;

  3. Anti-glare. This layer “brightens” the screen of the smartphone, protecting its from the appearance of reflections. Thanks to him, the display keeps bright colors and readability even in direct sunlight;

  4. Protective. As the name implies, this layer is intended for Prevent scratches, chips or other damage. When the strength of glass is indicated, the strength is given exactly this layer;

  5. Oleophobic coating. This is a special coating that facilitates sliding your finger across the screen, as well as caring for it – most dirt from the surface of the glass is removed by a simple movement of dry rags.

It is this configuration that is found in most quality safety glasses because it provides the best performance quality.

Glass not equipped with any of these layers is not recommended. to purchase.

Glass thickness

The mechanical strength partially depends on the thickness of the glass. However, this parameter directly determines only the stability of this accessory to various strokes. The most optimal glass thickness is 0.2-0.35 mm.

  1. Thinner glasses are designed to protect exclusively from small scratches. Front (front) data damage accessories just don’t survive. Even a light blow will result in glass damage.

  2. Thicker glasses protect well from various frontal strokes. Even severe damage does not cause damage. accessory. However, thick glasses are not particularly good “survive” side impacts and easily crack from seemingly light collisions at the ends.

To fully protect your smartphone, you can purchase thick glass and a bumper covering the end faces of the front panel. Then the device will be able to survive a fall “face” on the asphalt or the like coatings without protruding faces. Thin protective glass rather Designed to prevent scratches.

The presence of an oleophobic coating

The oleophobic coating, as the name implies, is intended for prevent the appearance of oily prints. It’s not really provides full protection against glass contamination, but significantly simplifies caring for them. Fingerprints and other “stains” are easily removed from the surface of this accessory is just a special dry with a napkin.

In addition, the oleophobic coating makes sliding with your finger on The screen is smoother and more enjoyable. Therefore, if you are used to typing text with a swipe on the keyboard or often look through long Lists (like social media feeds) like an add-on more than recommended.

Unfortunately, the oleophobic coating is prone to abrasion. FROM over time, it spontaneously removes from the surface glass, especially around the keyboard (if the user is a lot typing). It is impossible to restore the oleophobic coating, only and exclusively replacement of the accessory will be required.

On average, the oleophobic coating “lives” on the order of 3-4 months, even the best glass models.

Glass strength

Glass strength is measured in special units called H. However, it determines its resistance not to shock, but to “scratching” mechanical stress. So the glass is high hardness value – for example, 8H or 9H – can also easy to break with strong contact with any pointed subject. But such an accessory is quite difficult to scratch, even if you carry a smartphone in one pocket with keys and a loved one with a nail.



The most optimal hardness of glass is 8H or 9H.

Glass type

Safety glasses can be glossy and matte. This parameter largely determines the performance of the accessory.

  1. Glossy safety glasses are the most common type. By in fact, almost all such accessories are of this type. Glossy glass has high transparency (up to 98% in the highest quality models) and does not change the perception of the image on the screen. However, it is less protected from glare, and therefore, in direct sunlight, the “picture” on the display may lose readability.

  2. Frosted safety glasses are less common and in most cases are more expensive than glossy. The main advantage of such accessories lies in the fact that they better resist the action of direct sunlight, and therefore the image on the display saves readability even in the summer afternoon.

However, substandard frosted glass is prone to graininess – at some angle the image on the screen visually deformed, “scattering” into individual elements.

Choose the type of glass – frosted or glossy – is based on your preferences and the planned use of the smartphone.

Top manufacturers

Among the manufacturers of safety glasses, several companies that produce high-quality accessories:

  1. Mokolo;

  2. Ainy;

  3. LuxCase

  4. Brando;

  5. Nillkin.

How to stick protective glass

The procedure for gluing protective glass is quite simple. For this will require only a little care.

  1. Choose the least dusty room. Even a tiny speck caught on the screen in the process of gluing glass, can significantly spoil the appearance of the attached accessory;

  2. Take a plastic card. Suitable bank, discount and etc. You can not worry, in the process of sticking it will not is damaged;

  3. Wipe the screen or the entire front panel of the smartphone thoroughly wet towel. If this comes with a protective glass – take advantage of it. If not, you can take some other, and preference should be given to alcohol wipes impregnation;

  4. Wipe the screen or the entire front panel of the smartphone thoroughly dry cloth. It is recommended to choose such “cleaning products”, which do not leave fibers or similar “garbage”. Often dry The cloth comes with a protective glass, but if it is not, then You can use any optical;

  5. Make sure that the screen or front panel of the smartphone is fully clean. No dirt should remain on the main surface, not at the edges;

  6. Peel off the shipping film from the protective glass on the adhesive side. It is usually marked with a “1”. Attention! Not touch the glue side – remove fingerprints from there impossible;

  7. Starting from any corner, lean the glass against the screen or the front panel of the smartphone and start sticking. To squeeze out air, lean outside from the attached “corner” plastic card and slide it in the direction of gluing. Attention! Avoid bending the glass too much, as this may cause cracks;

  8. Having glued glass on the front panel or screen of a smartphone, remove the second shipping film from its surface (usually marked with the symbol “2”).

  9. Done! To remove the protective glass, just pry it with one of the edges with any thin and sharp object, and then gradually raise, not paying attention to appearing cracks.

In the following articles, our experts tell you how to choose case for a smartphone and the secrets of choosing a battery for your phone.

Attention! This material is subjective opinion of the authors of the project and is not a buying guide.

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