"Folding mobile phone" Recommended 3 selections Comfortable operation with familiar numeric keys![2020 latest version] --Fav -log by itmedia

　A few years have passed since the mainstream mobile phone became a "smartphone".Before that, the mainstream mobile phone (feature phone) was out of the main lineup of mobile phone operators (carriers).

　It is a mobile phone, also called "Garakake (Garapago Sketai)", like the Galapagos Islands, which has nurtured its own ecosystem, but there are also attractiveness that smartphones do not have, such as a numeric keypad that can be firmly pushed in and input.

　In this article, we will introduce the points you want to check when choosing a folding type mobile phone that is easy to make voice calls, and recommended models based on that.

　As one of the reasons for continuing to use mobile phones, many people have ease of telephone (voice calls).Due to the position of the receiving speaker and the utterance microphone, a folding mobile phone is the best mobile phone for calling.

　If you want a more comfortable call, check out the functions to improve your mobile phone call quality.In this regard, each manufacturer has emphasized, and each has its own characteristics.It's a good idea to choose one that has a function that suits you.

　Some people use various places (numbers) for calling calls on mobile phones, while others often go to specific places.For example, in the latter case, if you work outside, you will be able to hang it on many places such as "office", "boss", "support center", and if you are a child, you will be able to hang it on "father", "mother" and "home".

　If you have a place to make a phone call, you can use a mobile phone with a one -touch call key (button).If you set it in advance, you can call the call destination that you often use with one touch with the same feeling as the so -called "shortened dial".

　If you use a mobile phone in various places, there is a risk of dropping it on the ground or floors, damaged, wet in water, or covered with dust.We recommend that you check the durability of mobile phones, especially when using it in the outside sales or construction industry.

　As an objective indicator, the performance of waterproofing and dustproof (jin) stipulates the "IP standard (code)" specified by IEC (International Electric Standard Meeting), and the Procurement Standards stipulated as a procurement standard for shocks and environmental resistance."MIL-STD-810G" (MIL standard) is often applied mutatis mutandis.

　The IP standard is represented by "IP" in two digits.The dust is a dustproof grade in the numbers from 0 to 6, and the first place represents waterproof / waterproofing in numbers from 0 to 8.In each case, the larger the larger the protection performance, the higher the protection performance.However, there are two models that have two separate waterproof / waterproof grade.

　For MIL standards, various environmental tests are defined in the standard.It is not a compliant if you pass (pass) all tests, but you can select and take the necessary tests for each device or item.Mobile phones are no exception, and often describes what kind of environmental tests have passed.The more tests you have passed, the more safe you are.

　Based on the above points, we will introduce three recommended folding mobile phones.

　It is a folding mobile phone that focuses on the ease of viewing of the text and the ease of hearing the audio.It has a "call memo" function that allows you to record calls, so you can leave the conversation content without handwriting.It also has a "one push open" that opens the screen just by pressing the button.

　After ensuring the waterproof performance of IPX5 / 8 grade and the dustproof performance of IP6X grade, we also pass 17 types of tests specified in the MIL standard.You can also use 1Seg (TV) and Osaifu -Keitai ( *).

　Recommended for those who want a smart mobile phone with a smart appearance.

( *) There are some non -compatible services such as "Mobile Suica"

　It is a folding mobile phone that can be selected from 5 vivid body colors.The voice call function is also substantial, and it is decided whether to save the call audio at the end of the call (up to 60 minutes, setting required), and if the same person continues from the same opponent twice over 10 minutes.It also supports "step -up incoming calls" that enhances the incoming noise and vibrates the vibe for a long time to make the incoming call more reliably convey the incoming call.

　The latest "USB Type-C" is the latest "USB Type-C", and the message service " + message (plus message)" common to 3 major carriers can be caught.It is also attractive.It has waterproof and dustproof performance and impact resistance, but does not have Osaifu -Keitai or 1Seg.

　It is a folding mobile phone that appeals to be "long -lasting" and can be purchased in both SoftBank brands and Y! Mobile brands.The waterproof performance of IPX5 / 8 grade and the dustproof performance of IP6X grade are ensured, and the drop -resistant performance specified in the MIL standard is ensured.

　It has a voice recorder function, so you can get records such as meetings as well as calls.It supports 1Seg, but does not support Osaifu -Keitai.

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