I do not see why not. As long as the network connection is strong enough there shouldn't be any issues with viewing. Just take a look at your network speeds before you connect on your phone. To make sure you are receiving the recommend network speeds, you can download a speedtest application. You will want to make sure you are getting the correct amount of speeds for the model Slingbox you have.
Take a look at this article to make sure you are getting the recommended speeds to view your model Slingbox.
Hope this answered your question!
Sling Media Moderation Team