A:Answer Hi GFJIM!
Thank you for reaching out to us. We appreciate your interest in knowing if you can transfer your SIM card or information from an old phone to Galaxy S21 FE 5G. Yes, you can transfer your old SIM card because they are both Nano-SIM models. You can also transfer information by saving it on your SIM card or downloading the Smart Switch app that lets you quickly transfer files from your old phone to a new Galaxy phone.
For more information, you may access this link: https://www.samsung.com/us/support/answer/ANS00047089/.
Should you need more assistance, please feel free to get back to us via the following options:
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.community.samsung.com/t5/Samsung-Community/ct-p/us
Reference #: 1144226039
Have a great day.
Melardo