Is MUJI's "Waterproof Case for Smartphone" good?Introducing operability and precautions when using it

Shooting = Sachie Kawasaki

　There are various places to listen to music with a smartphone, take pictures, and find out.For example, you may listen to music in the bath, or you may take pictures in the kitchen or check recipes.In such a case, even though it is a waterproof smartphone, I want to protect it from the failure just in case.That's why MUJI's "Waterproof Case for Smartphones" is active.Let's use it immediately how convenient it is.[Photo] Put in a case and operate the smartphone First, check the size.This time, we use "Waterproof case for smartphones".I wonder if there is "medium" or "small" because there is "large", but even if you look at the official website, you can not find such products.At present, only "large" is sold.The size is 20 vertical.2cm, horizontal 12.3cm, thickness 2.It is 0cm.Compared to a long wallet, it is about the same length.I felt it was a little bigger.The available smartphone is 17 vertical.1cm, horizontal 9.2cm, thickness 6.8-12.5cm. It also supports smartphones on a large screen like iPhone 13 Pro Max. Looking at the instructions, it is said that waterproofing is equivalent to IPX7 by applying the front cover and closing the buckle properly. This is a level that does not have any harmful effects even if it is sinked into 1m deep water in the water at room temperature and left it for about 30 minutes. It will not be left in the water for 30 minutes in everyday life, so it can be interpreted if it can be used without any problems. I actually sprinkled water. Water will be played on the operation sheet. If water came in, it would be from the gap, so I tried to water it. I opened the front cover and checked it, but no water came inside. I will actually put in a smartphone. This time I use iPhone 8. First, remove the buckle and open the front cover. The buckle is harder and difficult to open than expected. I guess it will not come off. This front cover has a vinyl -like operation sheet. Press it with your finger to have elasticity. Put your smartphone in the bottom case. At this time, the position of the camera is the position of the camera. If a camera comes to a place that looks like a line called "rib", a line will enter the photo. Once you set the smartphone, close the front cover and apply the buckle firmly. The reaction is not bad when you touch the smartphone screen with your finger from the operation sheet. The screen moves relatively smoothly, so I don't feel much stress. However, the honest impression is that it is not that far because the screen has a protective sheet on the screen, so it is not that far. This is also specified in the manual. If you really want to operate crisp, you can remove the protective sheet. If you wear a smartphone case, the buckle may not be closed. In fact, I used the "waterproof case for smartphones" with a case first, but the buckle did not close well. It depends on the thickness of the case, but it is better to think that you need to remove it each time. However, some people may find it troublesome. Therefore, smartphones that are included in the "waterproof case for smartphones" are not used on a daily basis, but they are used in the past and are sleeping, and those that are now connected to Wi-Fi at home and used instead of small personal computers. Isn't a smartphone good even if you leave the smartphone case removed? That's my conclusion.

Sachie Kawasaki