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Compare 4 products

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Casio FX-991DE Plus Calculator
Casio FX-991DE Plus
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Casio FX-991ES Calculator
Casio FX-991ES
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Casio FX-991MS Calculator
Casio FX-991MS
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Sharp EL-2128V Calculator
Sharp EL-2128V
Available colors
User rating
59
4.0 out of 5
59 user ratings
5 stars
37 %
4 stars
32 %
3 stars
25 %
2 stars
5 %
1 stars
0 %
158
3.3 out of 5
158 user ratings
5 stars
25 %
4 stars
15 %
3 stars
32 %
2 stars
18 %
1 stars
6 %
145
3.5 out of 5
145 user ratings
5 stars
25 %
4 stars
19 %
3 stars
33 %
2 stars
18 %
1 stars
2 %
3
4.0 out of 5
3 user ratings
5 stars
33 %
4 stars
33 %
3 stars
33 %
2 stars
0 %
1 stars
0 %

Technical details

TypeScientific calculatorScientific calculatorScientific calculatorFinancial calculator

Design

Colour of product
  • Grey
  • Silver
  • Silver
  • White
GreySilver
Control typeButtonsButtons
N/A
N/A
Form factorPocketPocketPocketDesktop
Coveryes
N/A
yes
N/A
Housing material
N/A
N/A
Plastic
N/A

Dimensions

Width3.15 in3.15 in3.07 in5.51 in
Height6.38 in0.48 in0.5 in1.04 in
Depth0.44 in6.34 in6.08 in7.76 in
Weight3.35 oz3.7 oz3.7 oz8.82 oz

Display

Number of characters per line12121012
Display typeDot-matrixDot-matrix
N/A
N/A
Display tiltingnonono
N/A
Second displaynonono
N/A
Display lightyesnono
N/A
Number of display lines
N/A
22
N/A

Power

Power source
  • Solar
  • Battery
  • Solar
  • Battery
  • Solar
  • Battery
Battery
Battery operatedyesyesyes
N/A
Auto power offyes
N/A
N/A
N/A
Number of batteries required1
N/A
N/A
N/A
External power connectionSolar cellSolar cellSolar cell
N/A
Battery type
N/A
AAA
N/A
LR44

Often compared with Casio FX-991DE Plus

Often compared with Casio FX-991ES

Often compared with Casio FX-991MS