On a smartphone, they are located at the bottom of the screen. To navigate the My Account dashboard, just click or tap the appropriate icons. To sign in, you can use the Xfinity My Account app on your mobile device, visit us online at /manage-my-account or use your Xfinity X1 TV box. You can manage all your Xfinity services through Xfinity My Account, including billing, account users, equipment and more.