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HP 20b vs HP 30b

    3.03 in
    0.63 in
    HP 20b Calculator
    HP 20b
      3.03 in
      5.87 in
      HP 30b Calculator
      HP 30b
      Available colors
      User rating
      36
      4.3 out of 5
      36 user ratings
      5 stars
      		38 %
      4 stars
      		47 %
      3 stars
      		13 %
      2 stars
      		0 %
      1 stars
      		0 %
      41
      4.1 out of 5
      41 user ratings
      5 stars
      		36 %
      4 stars
      		41 %
      3 stars
      		19 %
      2 stars
      		2 %
      1 stars
      		0 %

      Full Comparison

      Units:

      Technical details

      HP 20bHP 20b
      HP 30bHP 30b
      TypeFinancial calculatorBasic calculator

      Design

      HP 20bHP 20b
      HP 30bHP 30b
      Colour of productBlackSilver
      Form factorPocketPocket

      Dimensions

      HP 20bHP 20b
      HP 30bHP 30b
      Width3.03 in3.03 in
      Height0.63 in5.87 in
      Depth5.87 in0.63 in
      Weight1.32 oz4.06 oz

      Display

      HP 20bHP 20b
      HP 30bHP 30b
      Number of characters per line128
      Number of display lines22
      Display tiltingnono

      Features

      HP 20bHP 20b
      HP 30bHP 30b
      Economic functionsyesyes
      Statistical functionsyesyes

      Power

      HP 20bHP 20b
      HP 30bHP 30b
      Power sourceBatteryBattery
      Battery operatedyesyes
      Battery typeCR2032CR2032
      Number of batteries required22

      Pros & Cons

      Pros
          Cons