Home Smartphones Xfinity Mobile July 4th Sale: $300 off select Samsung Galaxy Phones |... Smartphones Xfinity Mobile July 4th Sale: $300 off select Samsung Galaxy Phones | Unlimited 5G on 4 Lines for $30/mo per Line By ARCOM - 29 June 2021 66 0 SHARE Facebook Twitter Go to the deal page: Xfinity Mobile July 4th Sale: $300 off select Samsung Galaxy Phones | Unlimited 5G on 4 Lines for $30/mo per Line