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 3 products

Close
Casio FX-86DE Plus Calculator
Casio FX-86DE Plus
Close
Casio FX-991DE Plus Calculator
Casio FX-991DE Plus
Close
Ultron UN-1 Calculator
Ultron UN-1
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 %
18
4.2 out of 5
18 user ratings
5 stars
44 %
4 stars
33 %
3 stars
22 %
2 stars
0 %
1 stars
0 %

Technical details

TypeScientific calculatorScientific calculatorBasic calculator

Design

Colour of productBlack
  • Grey
  • Silver
Black
Housing materialPlastic
N/A
N/A
Form factorPocketPocketPocket
Control type
N/A
ButtonsButtons
Cover
N/A
yesno

Display

Number of characters per line121210
Number of display lines2
N/A
N/A
Display tiltingnonono
Display lightyesyesno
Display type
N/A
Dot-matrix
N/A
Second display
N/A
nono

Power

Power source
  • Solar
  • Battery
  • Solar
  • Battery
Solar
Battery operatedyesyes
N/A
Battery typeLR44
N/A
N/A
Auto power offyesyes
N/A
Number of batteries required11
N/A
External power connectionSolar cellSolar cell
N/A

Often compared with Casio FX-991DE Plus

Casio FX-991DE Plus Calculator
Casio FX-991DE X
CasioFX-991DE Plus
CasioFX-991DE X