Bells And Whistles
Both phones have LTE, and both phones have all the GPS chips, gyros, accelerometers, spare cameras and compasses that you could ask for. As for extras, there are a few key differences between the two. Only the GSIII is expandable, and only the GSIII is available on T-Mobile, the nation's fourth-largest carrier (Apple and Samsung phones also are available on AT&T, Sprint and Verizon). What's more, only Samsung delivers NFC, making possible the scenario in this cheeky Galaxy S III ad.