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Casio FX-86DE Plus vs Casio FX-991DE Plus

3.15 in
6.34 in
Casio FX-86DE Plus Calculator
Casio FX-86DE Plus
3.15 in
6.38 in
Casio FX-991DE Plus Calculator
Casio FX-991DE Plus
Available colors
User rating
36
4.1 out of 5
36 user ratings
5 stars
22 %
4 stars
61 %
3 stars
16 %
2 stars
0 %
1 stars
0 %
59
4.0 out of 5
59 user ratings
5 stars
37 %
4 stars
32 %
3 stars
25 %
2 stars
5 %
1 stars
0 %

Full Comparison

Technical details

Casio FX-86DE PlusCasio FX-86DE Plus
Casio FX-991DE PlusCasio FX-991DE Plus
TypeScientific calculatorScientific calculator

Design

Casio FX-86DE PlusCasio FX-86DE Plus
Casio FX-991DE PlusCasio FX-991DE Plus
Colour of productBlack
  • Grey
  • Silver
Form factorPocketPocket

Dimensions

Casio FX-86DE PlusCasio FX-86DE Plus
Casio FX-991DE PlusCasio FX-991DE Plus
Width3.15 in3.15 in
Height6.34 in6.38 in
Depth0.44 in0.44 in
Weight3.35 oz3.35 oz

Display

Casio FX-86DE PlusCasio FX-86DE Plus
Casio FX-991DE PlusCasio FX-991DE Plus
Number of characters per line1212
Display tiltingnono
Display lightyesyes

Power

Casio FX-86DE PlusCasio FX-86DE Plus
Casio FX-991DE PlusCasio FX-991DE Plus
Power source
  • Solar
  • Battery
  • Solar
  • Battery
Battery operatedyesyes
Auto power offyesyes
Number of batteries required11
External power connectionSolar cellSolar cell

Pros & Cons

Pros
      Cons

          Often compared with Casio FX-991DE Plus