Is my iPhone SE 2020 compatible with 4G or5G?

Hello ciela2013.

Thank you for using Apple Support Communities. It sounds like you'd like to know if your iPhone SE is compatible with 4G or 5G. Allow us to share some information with you. Only specific iPhone models are compatible with 5G. Check out the resource below:

Use 5G with your iPhone - Apple Support

iPhone - Supported 5G and LTE networks - Apple

Your specific iPhone SE supports LTE (4G). The following resource has more details:

iPhone SE - Technical Specifications - Apple

About the LTE options on your iPhone - Apple Support

We hope this information is useful. Cheers.