We and our partners use cookies to give you the best online experience, including to personalise advertising and content. Data about your interaction with this site and the ads shown to you may be shared with companies involved in the delivery and/or personalisation of ads on this site and elsewhere online.

Compare 4 products

Close
Canon F-789SGA Calculator
Canon F-789SGA
Close
Casio FX-991ES Plus Calculator
Casio FX-991ES Plus
Close
Casio FX-991EX Calculator
Casio FX-991EX
Close
Casio FX-991MS Calculator
Casio FX-991MS
Available colors
User rating
105
3.5 out of 5
105 user ratings
5 stars
25 %
4 stars
22 %
3 stars
34 %
2 stars
13 %
1 stars
3 %
299
3.4 out of 5
299 user ratings
5 stars
22 %
4 stars
19 %
3 stars
36 %
2 stars
16 %
1 stars
5 %
318
3.3 out of 5
318 user ratings
5 stars
20 %
4 stars
18 %
3 stars
42 %
2 stars
12 %
1 stars
5 %
145
3.5 out of 5
145 user ratings
5 stars
25 %
4 stars
19 %
3 stars
33 %
2 stars
18 %
1 stars
2 %

Technical details

TypeDisplay calculatorScientific calculatorScientific calculatorScientific calculator

Design

Colour of productGrey
  • Grey
  • Violet,White
  • Black
  • Black,White
Grey
Form factorPocketPocketPocketPocket
Control type
N/A
ButtonsButtons
N/A
Digit comma separator
N/A
yesyes
N/A
Cover
N/A
nonoyes
Housing material
N/A
N/A
N/A
Plastic

Dimensions

Width3.39 in3.15 in3.03 in3.07 in
Height0.68 in0.44 in0.44 in0.5 in
Depth6.73 in6.38 in6.52 in6.08 in
Weight4.23 oz3.35 oz3.17 oz3.7 oz

Display

Number of characters per line18151610
Number of display lines1422
Display tiltingnoyesnono
Display type
N/A
Dot-matrixLCD
N/A
Second display
N/A
nonono
Display light
N/A
nonono

Power

Power source
  • Solar
  • Battery
  • Solar
  • Battery
  • Solar
  • Battery
  • Solar
  • Battery
Battery operatedyesyesyesyes
Battery typeCR2032LR44LR44
N/A
Auto power offyesyes
N/A
N/A
Number of batteries required111
N/A
External power connectionSolar cell
  • Solar cell
  • USB
  • External source
  • Solar cell
  • External source
Solar cell

Often compared with Casio FX-991ES Plus

Often compared with Casio FX-991EX

Often compared with Casio FX-991MS