Tags: Information Appliance.
The Psion Series 5 was a PDA from Psion. It came in two main variants the Series 5 (launched in 1997) and the Series 5mx (1999) the latter having a faster processor clearer screen and updated software. There was also a rare Series 5mx Pro which differed only in having the operating system loaded into RAM and hence upgradeable. Ericsson marketed a rebadged version of the Series 5mx called the MC218.The Psion Series 5 was a major upgrade from the Psion Series 3.
