When talking about the iPhone SE models, it might be more accurate to say that it comes in different generations. In terms of generations, the iPhone SE has three generations, with the 3rd generation being its latest iteration that Apple released in 2022. However, there are five different models as well of the iPhone SE based on the global technical requirements. These five are:
The US/Canada/Mexico iPhone SE model
The Japan Model
The China Model
The Russia Model
The Global Model
You can tell which model you have based on the Model number of the phone.