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Impartial price comparison

Casio FX-991EX vs. Casio FX-CG50 + 8

Casio FX-991EX

Casio FX-991EX

£22.80

£28.91 Incl. delivery
Casio FX-CG50

Casio FX-CG50

£98.99

Free delivery
Casio FX-991ES Plus

Casio FX-991ES Plus

£7.80

£13.78 Incl. delivery
Sharp EL-334F

Sharp EL-334F

£9.99

£14.48 Incl. delivery
Casio FX-85GT Plus

Casio FX-85GT Plus

£12.07

£15.44 Incl. delivery
Casio FX-82EX

Casio FX-82EX

£15.05

£19.54 Incl. delivery
Texas Instruments TI-84 Plus

Texas Instruments TI-84 Plus

£4.99

£109.95 Incl. delivery
Texas Instruments TI-82 STATS

Texas Instruments TI-82 STATS

£9.44

£59.28 Incl. delivery
Casio FX-83GTX

Casio FX-83GTX

£13.99

£15.44 Incl. delivery
Colour/ material
White, Black, Silver, Grey
White, Black, Grey, Blue
White, Black, Silver, Grey
White, Silver, Grey
White, Black, Silver, Pink, Grey, Blue
Black
White, Black, Silver, Grey, Blue, Yellow
White, Black, Blue
White, Black, Pink, Blue
Black, Green, Blue
Dimensions (WxHxD)
Depth
11.1 mm
89.5 mm
11.1 mm
150 mm
11 mm
192 mm
26 mm
162 mm
Height
165.5 mm
5 mm
162 mm
15 mm
162 mm
8 mm
27 mm
186 mm
11 mm
Width
77 mm
89 mm
80 mm
105 mm
80 mm
77 mm
89 mm
89 mm
80 mm
Product weight
90 g
230 g
95 g
210 g
90 g
80 g
268 g
225 g
90 g
Eco labels
Features
Economic functions, Equation solver, Complex functions, Matrices, Statistical functions
Programmable, Colour screen, CAS (Computer Algebra System), Economic functions, Statistical functions
Programmable, CAS (Computer Algebra System), Economic functions, Equation solver, Complex functions, Matrices
Economic functions
Equation solver, Complex functions, Statistical functions
Statistical functions
Watch, Programmable, Calendar, Colour screen, CAS (Computer Algebra System), Economic functions, Equation solver, Complex functions, Matrices, Statistical functions
Programmable, Economic functions, Equation solver, Complex functions, Statistical functions
Display characters/line
16 ​
8 ​
16 ​
10 ​
12 ​
16 ​
16 ​
16 ​
12 ​
Display Lines
4 ​
8 ​
4 ​
1 ​
8 ​
8 ​
Type
Calculator
Graphing calculator
Calculator
Calculator
Calculator
Calculator
Graphing calculator
Graphing calculator
Graphing calculator
Graphing calculator
Graphing feature
3D graphics
Parametric graphs, Polar graphs, Recursively defined sequences, Differential Equations, Split screen, Rectangular graphs
Parametric graphs, Polar graphs, Recursively defined sequences, Differential Equations, Split screen, Rectangular graphs
RAM (total)
61 kB
24 kB
32 kB
RAM (usable)
24 kB
24 kB
ROM memory (usable)
0.48 MB
Battery operated
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Battery type
LR44
R3 (AAA)
LR44
LR44
R3 (AAA)
R3 (AAA)
R3 (AAA)
External power connection
Solar cell
USB, Solar cell
USB, Solar cell
External source (12-230V), Solar cell
Solar cell
External source (12-230V), USB
Solar cell
Solar cell
Solar cell