- Touch screen (Touch screen) If the device has an touch screen,
the user can navigate control the device (through menus, look up
directions, browse, etc.) by touching the screen. - Display
resolution (Display resolution (width x height)) Resolution is
the number of horizontal pixels times the number of vertical
pixels of the display. - Built-in antenna (Built-in antenna) If
the device has an internal antenna built-in, the use of an
external antenna is not obligatory. - External antenna support
(Support for external antenna) External antenna often offers
better reception than the internal GPS antenna. - Bluetooth
(Bluetooth support) Via Bluetooth the GPS can be connected to
another Bluetooth device for data transfer. The connection can
be used e.g. to transfer location data from the GPS to a mobile
phone, PDA, or PC. - Map storage medium (Main storage medium for
maps) The storage used for map data can be either internal
(flash or HDD) or external (a memory card, CD or DVD). A
navigator can also support more t