Although these organizers seem to share the same case and same origin, they are not the same at all.

 

Advert / Hitech - 2 KB memory
Basic 6-language translator
2 lines x 12 dot matrix chars.

Egregor - 3 KB memory
1 line x 12 dot matrix chars
2 lines x 12 digits
Weldone - 15 KB memory
1 line x 12 dot matrix chars
2 lines x 12 digits
Noname - 32 KB memory
3 lines x 12 dot matrix chars.
Pocket 32 - Same model as the Noname 32 KB
Design close to the Noname
32K card with 2 ROM chips for
the translator. The all-in-one
chip holds the 2 KB organizer
memory
Same card as the Weldone with
empty extra memory locations
Same card as the Egregor with
populated memory locations
All-in-one chip + 32 KB soldered DIP memory chip In this model, the 32 KB memory chip is sticked onto the card.
   
 

There are also some slight variations in cases design.

   
       
Advert model page
 Itech page
Egregor page Weldone page Noname page Noname page