I have been using vi. Some friends have suggested me to use vim. What is the difference between them? Differences between Vi and Vim

I have been using vi. Some friends have suggested me to use vim. What is the difference between them? Differences between Vi and Vim-general Linux technology-Linux technology and application information. The following is a detailed description. I have been using vi. Some friends have suggested me to use vim. What is the difference between them?
To put it simply, they are all multi-mode editors,
The difference is that vim is an upgraded version of vi, which is not only compatible with all instructions of vi,
There are also some new features in it.
Vim has the following advantages:

1. Multilevel Revocation
We know that in vi, you can only undo the last command by pressing u, but you can undo it without limit in vim.

2. ease of use
Vi can only run in unix, while vim can not only run on unix, windows, mac, and other multi-operating platforms.

3. Highlight the syntax
Vim can use different colors to highlight your code.

4. Visualized operations
That is to say, vim can run not only on the terminal, but also on x window, mac OS, and windows.

5. fully compatible with vi
In some cases, you can use vim as vi.