Can my Sprint Samsung Galaxy S4 work on AT&T?

Episode 1256 (2:01:08)

Dan from Jacksonville, IL
Samsung Galaxy S4

Dan's friend broke his phone, and he wanted to let him use his old Samsung Galaxy S4 phone. But Dan has Sprint and his friend has AT&T. Leo says he can try it by just slipping his old SIM into it. If it doesn't work, he'll know. If not, then it's time to get a new phone. But all new mobile devices are LTE now, so they can be used on other networks.