Hi dimitri-san,
do you know the difference between this three models?
http://www.denshi-jisho.com/CASIO-EX-word-XD-D9800GM-Japanese-English-Electronic-Dictionary.html
http://www.denshi-jisho.com/CASIO-EX-word-XD-K9800BK-Japanese-English-Electronic-Dictionary.html
http://www.denshi-jisho.com/CASIO-EX-word-XD-K9800BK-Japanese-English-Electronic-Dictionary.html
Thought the bottom LCD is better for kanji input by the stylus, but not sure about the dictionaries inside the jisho