NIMASO Trivia: True or False – Will keys scratch your phone display?

Doesn't it sound right to you that "Don't keep your keys and smartphone together, because the keys will scratch the smartphone display"?

But can keys really damage your phone's display?

NIMASO staff conducted an investigation into this issue.

Many smartphones currently on the market use Corning Gorilla Glass as the display material. The Mohs hardness of Gorilla Glass is listed as between 6 and 6.5. On the other hand, the material of the key is mainly iron. Its Mohs hardness is about 4. In addition, the Mohs hardness of the commonly seen gold, silver, and aluminum is all up to 4. Therefore, it is difficult for sharp metal objects such as knives and metal knives to scratch the display of a smartphone.

It is true that metal objects commonly used in daily life cannot damage a smartphone display, but sand on the ground can damage a smartphone display. Sand is composed of quartz and has a Mohs hardness of 7. Therefore, Gorilla Glass, which has a Mohs hardness of 6, can be scratched by sand, which has a Mohs hardness of 7.

In other words, the main role of the glass film is to protect the display when you accidentally drop your smartphone. Metal objects such as keys and knives will not scratch the display, but if they are kept together for a long time, they may cause minor scratches.

So, be sure to apply a glass film.

NIMASO produces and sells four types of glass films to meet the diverse needs of our customers. For those who are particular about image quality, we recommend the glossy glass film. For those who want to experience a smooth operation, please try the anti-glare glass film. For those who are concerned about the health of their eyes, the blue light blocking glass film is the best. If you are concerned about the eyes of others, please use the privacy glass film.

URL: https://www.nimaso.co.jp/products/list?keywords=%E3%82%AC%E3%83%A9%E3%82%B9%E3%83%95%E3%82%A3%E3%83%AB%E3%83%A0

Is the smartphone body more likely to be damaged than the display?

The exteriors of smartphones currently on the market use tempered glass on the front and back, and shiny metal on the top, bottom, left and right. Therefore, it can be assumed that the aforementioned metal objects with a Mohs hardness of 6 will easily scratch the metal parts of smartphones with the same Mohs hardness.

In an experiment by YouTuber Jerry Rig Everything, both the iPhone 13 and iPhone 13 Pro Max were scratched by a sharp metal object.

Image from Jerry Rig Everything video.

That's why you need to put a case on your iPhone.

In recent years, the colors of smartphones have become more abundant. It seems that the number of people who enjoy the colors of their smartphones and want to use them without a case is increasing. However, as mentioned above, the metal objects we use in our daily lives can damage the iPhone body.

If you want to protect your iPhone while still enjoying its color, we recommend a clear case.

NIMASO's clear case is made of soft TPU material and highly transparent tempered glass. The top, bottom, left and right sides are made of soft TPU material, making it easy to put on. The back is made of highly transparent tempered glass, which brings out an even more glossy look.

URL: https://www.nimaso.co.jp/products/list?keywords=%E3%82%B1%E3%83%BC%E3%82%B9

Another thing that is easy to forget is the lens. The iPhone uses a lens made of sapphire, but it is not a natural stone, but an artificially made sapphire. Therefore, the sapphire lens of the iPhone does not have a Mohs hardness of 9, just like natural sapphire. In other words, the iPhone lens can be scratched by sand and other things. In addition, YouTuber Jerry Rig Everyrthing discovered that the iPhone lens can also be scratched by things with a Mohs hardness of 6. It can be said that the iPhone lens also needs to be protected.

What I recommend here is a lens cover.

The NIMASO lens cover is a popular item in 2021. It uses 9H tempered glass and has high transmittance, so it does not impair the camera function of the iPhone 13.

URL: https://www.nimaso.co.jp/products/list?keywords=%E3%83%AC%E3%83%B3%E3%82%BA%E3%82%AB%E3%83%90%E3%83%BC

Tips

1. The key will not scratch the display, but it is likely to scratch the metal parts of the smartphone.
2. To effectively protect your smartphone, use a glass film and case.