A Permanent Dial/Push is attached to the wall or door to store keys and usually can hold up to keys at a time. The Portable Dial/Push is removable, and you can keep it as a lock on a door or attach it to a lock itself. The portable also tends to store 1-3 keys instead of the 5. The main difference is the fact that one is removable and one is stationary. Both dials can be opened by a dial or could be set by a push of buttons as the pin.