Here is a vlogging kit with everything you need to capture better video with your phone. The Movo Smartphone Vlogging Kit comes with a smartphone camera rig, dual supercardioid condenser mic, and a LED light. The rig has ergonomic handles and lets you rotate your phone to capture in portrait or landscape orientation.
This rig fits smartphones up to 3.7 inches wide. The DoubleMic connects to iPhone and Android devices. You can easily toggle between front, rear, or dual pickup modes. You can find out more about it here.