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.

Casio FX-991ES Plus vs Casio FX-991EX

    3.15 in
    0.44 in
    Casio FX-991ES Plus Calculator
    Casio FX-991ES Plus
      3.03 in
      0.44 in
      Casio FX-991EX Calculator
      Casio FX-991EX
      Available colors
      User rating
      296
      3.4 out of 5
      296 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 %

      Full Comparison

      Units:

      Technical details

      Casio FX-991ES PlusCasio FX-991ES Plus
      Casio FX-991EXCasio FX-991EX
      TypeScientific calculatorScientific calculator

      Design

      Casio FX-991ES PlusCasio FX-991ES Plus
      Casio FX-991EXCasio FX-991EX
      Colour of product
      • Grey
      • Violet,White
      • Black
      • Black,White
      Control typeButtonsButtons
      Form factorPocketPocket
      Digit comma separatoryesyes
      Covernono

      Dimensions

      Casio FX-991ES PlusCasio FX-991ES Plus
      Casio FX-991EXCasio FX-991EX
      Width3.15 in3.03 in
      Height0.44 in0.44 in
      Depth6.38 in6.52 in
      Weight3.35 oz3.17 oz

      Display

      Casio FX-991ES PlusCasio FX-991ES Plus
      Casio FX-991EXCasio FX-991EX
      Number of characters per line1516
      Number of display lines42
      Display typeDot-matrixLCD
      Display tiltingyesno
      Second displaynono
      Display lightnono

      Connectivity

      Casio FX-991ES PlusCasio FX-991ES Plus
      Casio FX-991EXCasio FX-991EX
      Data transfernono

      Features

      Casio FX-991ES PlusCasio FX-991ES Plus
      Casio FX-991EXCasio FX-991EX
      Complex functionsyesyes
      Equation solveryesyes
      Matricesyesyes
      Statistical functionsyesyes

      Power

      Casio FX-991ES PlusCasio FX-991ES Plus
      Casio FX-991EXCasio FX-991EX
      Power source
      • Solar
      • Battery
      • Solar
      • Battery
      Battery operatedyesyes
      Battery typeLR44LR44
      Number of batteries required11
      External power connection
      • Solar cell
      • USB
      • External source
      • Solar cell
      • External source

      Pros & Cons

      Pros
          Cons

              Casio FX-991ES Plus vs Casio FX-991EX - User Opinions

              • sid
                over 1 year ago
                If you want to know the best among these two calculators i.e. Casio 991EX and 991ES plus, then I suggest you to go for Casio 991EX. It is the fastest calculator ever by Casio. It is almost 4 times faster than 991ES Plus. It has almost 4 times screen resolution as compared to 991ES Plus.
              • merlin
                over 1 year ago
                The main key features of Casio 991EX over 991ES plus are : It is the fastest calculator ever by Casio. It is almost 4 times faster than 991ES Plus. It has almost 4 times screen resolution as compared to 991ES Plus.
              • What's the difference between products? Share your opinion.

              Often compared with Casio FX-991ES Plus

              Casio FX-991ES Plus Calculator
              Casio FX-991EX
              CasioFX-991ES Plus
              CasioFX-991EX
              Casio FX-991ES Plus Calculator
              Casio FX-991ES Plus 2
              CasioFX-991ES Plus
              CasioFX-991ES Plus 2
              Casio FX-991ES Plus Calculator
              Casio FX-991ES
              CasioFX-991ES Plus
              CasioFX-991ES
              Casio FX-991ES Plus Calculator
              Casio FX-82MS-SC
              CasioFX-991ES Plus
              CasioFX-82MS-SC
              Casio FX-991ES Plus Calculator
              Casio FX-115ES
              CasioFX-991ES Plus
              CasioFX-115ES
              Casio FX-991ES Plus Calculator
              Casio FX115ES
              CasioFX-991ES Plus
              CasioFX115ES

              Often compared with Casio FX-991EX

              Casio FX-991EX Calculator
              Casio FX-85GTX
              CasioFX-991EX
              CasioFX-85GTX
              Casio FX-991EX Calculator
              Casio FX-CG50
              CasioFX-991EX
              CasioFX-CG50
              Casio FX-991EX Calculator
              Casio FX-991ES Plus
              CasioFX-991EX
              CasioFX-991ES Plus
              Casio FX-991EX Calculator
              Casio FX-991MS
              CasioFX-991EX
              CasioFX-991MS
              Casio FX-991EX Calculator
              Casio FX-991ES
              CasioFX-991EX
              CasioFX-991ES
              Casio FX-991EX Calculator
              Casio FX-115ES PLUS
              CasioFX-991EX
              CasioFX-115ES PLUS