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Compare 3 products

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Canon F-789SGA Calculator
Canon F-789SGA
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Casio FX-991EX Calculator
Casio FX-991EX
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Casio FX-991MS Calculator
Casio FX-991MS
Available colors
User rating
104
3.5 out of 5
104 user ratings
5 stars
25 %
4 stars
23 %
3 stars
33 %
2 stars
13 %
1 stars
3 %
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 calculator

Design

Colour of productGrey
  • Black
  • Black,White
Grey
Form factorPocketPocketPocket
Control type
N/A
Buttons
N/A
Digit comma separator
N/A
yes
N/A
Cover
N/A
noyes
Housing material
N/A
N/A
Plastic

Dimensions

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

Display

Number of characters per line181610
Number of display lines122
Display tiltingnonono
Display type
N/A
LCD
N/A
Second display
N/A
nono
Display light
N/A
nono

Power

Power source
  • Solar
  • Battery
  • Solar
  • Battery
  • Solar
  • Battery
Battery operatedyesyesyes
Battery typeCR2032LR44
N/A
Auto power offyes
N/A
N/A
Number of batteries required11
N/A
External power connectionSolar cell
  • Solar cell
  • External source
Solar cell

Often compared with Casio FX-991EX

Often compared with Casio FX-991MS