What electronic products have you used that have been "replaced" by mobile phones?

Electronic products replaced by mobile phones include electronic dictionaries, alarm clocks, stopwatches, timers, mp3 players and electronic navigators. A long time ago, smart phones were not as popular as they are now, so people can only buy some electronic products to replace the functions currently used on our mobile phones. After all, electronic products were very popular at that time, and only in this way can life be more convenient. The above products are basically replaced by mobile phones now, because there are so many functions on mobile phones that almost everything in life is summarized. If I leave my mobile phone, I don't think I can live alone.

The electronic products replaced by mobile phones are firstly electronic dictionaries and alarm clocks. In the past, when there was no mobile phone, many people wished they had a dictionary, because at that time, if you didn't have a dictionary to learn English, you didn't know how to read words at all, let alone understand some difficult sentences, so in order to translate quickly, they had to go to the bookstore to buy a dictionary or use an electronic dictionary. After all, the efficiency of electronic dictionaries is very high, and they can be translated immediately by typing a word in Chinese. And an alarm clock. When I was a child, I had to buy a very bulky alarm clock because I didn't have a mobile phone alarm clock. But now with mobile phones, almost all these electronic products have been eliminated.

Battery products eliminated by mobile phones include stopwatches, timers and mp3 players. Stopwatch timer is only used by PE teachers when they are in physical education class, and it is used to count students' running time. However, after the introduction of this function on the mobile phone, basically no one wants to spend a lot of money to buy something heavy to hang around their necks, so there is mp3. There are a lot of music softwares on mobile phones now, so there is no need to buy an mp3 for listening to songs by one person.

If you have any better ideas about this matter, please write them in the comments and we will discuss them together.