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Maximilian Hohmann · (This post was last modified: 08-09-2022 08:33 PM by Maximilian Hohmann.)

Hello!

The only two others that came to my mind quickly are the "MBO Pocket Computer 2000" and the "Nixdorf LK-3000" (also known as "Lexicon LK-3000"). They are from the late 1970ies and the MBO has a VFD display and the Nixdorf uses LEDs. They are a bit larger than an ordinary pocket calculator and accept cartridges that can turn them into a calculator, language translator and maybe other things as well.
Unfortunately I only have a couple of MBO devices and several language modules but was unable to find a working Nixdorf for an acceptable price.

Regards
Max

NB: Personally (no offence intended) I think that 14 and 16 segment displays are the ugliest form of man-machine-interface ever invented and one reasons why I never liked the HP-41.