Hi Marc, thank you for the Galaxy S22 Ultra 256GB question, and we appreciate your interest in our flagship device. And to answer your question, the phone is 5G capable. Please see the links for more details.
Differences between the Galaxy S22 models
https://www.samsung.com/us/support/answer/ANS00090242/
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 Number: 1144193071
Have a great day.
^Charles