Hi @ejhonathan,
Thunkable X actually has more features than Classic and that number is growing every day.
This list was compiled in November and if you take a look at our Announcements you’ll see that a lot has been released since then, and we have some amazing new features scheduled for release this month too. 
If you have a specific feature in mind, please let us know as there might be a different name or a different way of doing it in X.
Thanks!