Changing the local operator, I realized that my phone does not support 3G and 4G networks. I decided to buy a new phone and realized that there are not many 4G cell phones with buttons on the market.
The choice settled on the Nokia 8110.
For now, I like it. Maybe, I would like a larger battery, but this, I think, is a trifle. There is a KaiOS aboard. There are only few applications here. Those apps that interest me are filled with advertising and do not really work offline. Maybe I should try to build an application for mysel?