CASIO booth @ Hong Kong Book Fair 2025
Posté le 21/07/2025 17:33

Hi there! A few days ago I saw
this reddit post from r/calculators which shows an fx-CG100 in a book fair. The moment I saw an fx-3650PII next to it, I immediately recognized that the book fair OP referred to was held in HKCEC which is near my residence, so this morning (~10am UTC+8) I went there and visit the CASIO booth to see the new calculator.
fx-CG100




To my surprise, this fx-CG100 is a marketing sample and still runs version 1.01. DateO reveals that this OS version was compiled on May 22, 2024. The S/N sticker has "AZC" which corresponds to the date (24-12-20) on MS sticker, since "Z" is known to be associated with calculators assembled in December.
fx-CG100 uses black-orange-green color scheme, in contrast to Graph Math+ which has the white-red-blue one. The Math+ one looks more harmonized in my opinion.
One of the major difference when comparing to the Graph Math+ is the FORMAT key. In Graph Math+, pressing this key opens the format conversion menu. In fx-CG100, this menu is moved to the SHIFT secondary menu and instead it performs S<->D by default.

In addition, it will also prompt the user to select a country at startup which affects the available functions during Exam Mode.
Other calculators on sale

Pricing

fx-CG100 - HK$1899 (207 €)

fx-9860G III - HK$1199 (131 €)

fx-3650P II - HK$309 (33.7 €)

fx-50FH II - HK$339 (37.0 €)

fx-991CW - HK$299 (32.6 €)

fx-991ES PLUS 2 - HK$249 (27.2 €)
The prices for fx-3650P II and fx-50FH II are still very unattractive when comparing to what they used to be. In 2019, the retailers in my high school sold them at HK$155 and HK$175 respectively.
Graphing calculators on the other hand have devilishly expensive price tags. I would rather wait for
the Amazon deal which only costs less than half the price of the HKCEC one.