with an iphone 6+. For listening to music or hands free calls, i just connect via bluetooth. Plug into a USB Lightning cable if I need to use carplay (when interfacing iphone's map app mainly). No physical buttons, 100% touchscreen. Slight modification to the mounting brackets needed in the form of drilling new screw holes to fasten brackets to the radio. The unit looks fantastic in the z double din bezel. If you are still interested, you would want to research galaxy connectivity pros/cons. The unit also comes with a GPS antenna, but I have been so happy with just using my iphone that I havent tried any of the other onboard features. GL