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Compare 3 products

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Casio FX-991ES Plus Calculator
Casio FX-991ES Plus
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Casio FX-991EX Calculator
Casio FX-991EX
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Casio FX-CG50 Calculator
Casio FX-CG50
Available colors
User rating
298
3.4 out of 5
298 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 %
172
3.6 out of 5
172 user ratings
5 stars
30 %
4 stars
18 %
3 stars
34 %
2 stars
11 %
1 stars
5 %

Technical details

TypeScientific calculatorScientific calculatorGraphing calculator

Design

Colour of product
  • Grey
  • Violet,White
  • Black
  • Black,White
  • Black
  • Black,White
Control typeButtonsButtonsButtons
Form factorPocketPocketPocket
Digit comma separatoryesyes
N/A
Covernonono
Housing material
N/A
N/A
Plastic

Dimensions

Width3.15 in3.03 in3.5 in
Height0.44 in0.44 in0.73 in
Depth6.38 in6.52 in7.42 in
Weight3.35 oz3.17 oz8.11 oz

Display

Number of characters per line151615
Number of display lines428
Display typeDot-matrixLCDLCD
Display tiltingyesnono
Second displaynonono
Display lightnonoyes

Features

CASyes
N/A
N/A
Complex functionsyesyes
N/A
Equation solveryesyes
N/A
Matricesyesyes
N/A
Statistical functionsyesyesyes
Economic functions
N/A
yes
N/A
Colour screen
N/A
N/A
yes
Programmable
N/A
N/A
yes
3D graphics
N/A
N/A
yes

Power

Power source
  • Solar
  • Battery
  • Solar
  • Battery
Battery
Battery operatedyesyesyes
Battery typeLR44LR44AAA
Auto power offyes
N/A
yes
Number of batteries required114
External power connection
  • Solar cell
  • USB
  • External source
  • Solar cell
  • External source
USB

Often compared with Casio FX-991ES Plus

Often compared with Casio FX-991EX

Often compared with Casio FX-CG50