Product Comparison: Casio FX-CG50 vs Casio FX-CG20

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General Specifications
About the Product
The fx-CG50 brings maths to life with the next generation of graphing calculator technologies, including high-resolution colour display with natural textbook display, innovative picture plot function enabling analysis of images and video, and an extensive range of graphing functions.
The fx-CG20 brings maths to life with the next generation of graphing calculator technologies, including high-resolution colour display with natural textbook display, innovative picture plot function enabling analysis of images and video, and an extensive range of graphing functions.
Size & Weight
7.8 in.
7.24 in.
3.6 in.
3.62 in.
1 in.
0.83 in.
8.1 oz.
8.15 oz.
What customers say about "Size & Weight"
Casio FX-CG50 Graphic Calculator
  • Lots of functions. Large keypad. Very good. Recommended.
  • Easy to use, light weight, ideal size :) its currently helping my sister through maths at uni so it was definitely worth it!
  • Great functions and very lightweight calculator, very comfortable to use.
  • I bought it last year and it works well so far, love the size and functions are great!
  • The calculator is quite bulky and not very portable when compared to other non-graphing calculators however the size is understandable due to the large amount of features.
Casio FX-CG20 Advanced Graphic Calculator
  • The right size and easy to use. This is absolutely what i needed and for the price it is affordable.
  • It is a little big in size but does an awesome job and more. Very satisfied so recommend it.
  • Calculator works great, plus it's easy to use. Light-weight in size, it's a great companion for any high-schooler to use!
  • It resembles a phone, therefore it does not cause inconvenience when you take it with you.
  • Weight may not suit everyone, it is heavy enough that may cause discomfort during transportation.
Display Type
Display Size
3.17 in (384 x 216 pixels)
384 x 216 pixels
Touch Screen
What customers say about "Display"
Casio FX-CG50 Graphic Calculator
  • Together with its large colour display, the result is aesthetically pleasing - more so than some of the T.I.s!
  • The CG50 has a clearer brighter screen than its predecessor, and it is also a litte speedier in its calcuations.
  • Screen is excellent and it's faster than the previous model with better buttons.
  • This is a great calculator to have with many functions. It is extremely helpful and has a great display.
  • Color display with many useful functions. Must have. Good value.
Casio FX-CG20 Advanced Graphic Calculator
  • Thanks to its unique digital colour display and powerful processor it can calculate even the most hardest of graphs.
  • Easy to use with common functions accessible in few keystrokes. Straightforward to program. Good screen - easy to read.
  • Great calculator makes maths much easier when doing graphs thanks to the color screen very easy to use.
  • As per Casio calculators it is really easy to use . The colour graphics are excellent.
  • After a year of use, I began to notice flickering on the screen. I was very unsatisfied because it was difficult to work with it.
Internal Memory
16 MB
16 MB
61 KB
61 KB
PC Connectivity
Battery Type
4 x AAA Batteries
4x AAA alkaline batteries
Battery Life
4 days
250 days
Pre-Loaded Applications
Equation calculations, List function, Graphing, Statistical graphs and calculations, Financial calculation, 3D graph function, eActivity
Run-Matrix, Statistics, eActivity, Spreadsheet, Graphing, Dynamic Graph, Tables, Recursion, Conic Graphing, Equation calculations, Program, Financial calculation, E-Con2, Geometry, Picture Plot, G-Solve
Auto power off, Backlights, 7 system languages supported, Add-in software system, Clipboard
65.000 colours for menu and loadable pictures, Natural textbook display, 3D graphs, 4 nickel-metal hydride batteries
What customers say about "Features"
Casio FX-CG50 Graphic Calculator
  • The battery lasts a long time, I have had mine for about 4 months and the battery is still pretty much full.
  • This feels well built and strong, easy set up, great functions.
  • It does everything I need, no issues, very quick on/off, seemingly low battery consumption.
  • The model was presented in 2017, so Casio should think about normal Li-ion battery, that you can charge through USB port and not think about stupid replacements.
  • Somewhat difficult to use, have to use non rechargeable batteries - likely to go through a lot.
Casio FX-CG20 Advanced Graphic Calculator
  • Simple connection to computer for backups and for showing output on large screen where it can be saved or printed.
  • Very impressive gadget I am doing a Psychology degree and bought it for the function of statistics I haven't tried it out yet but it is perfect for what I need to it for.
  • I found it quite easy to get it up and running with it's easy to use UI. Far too advanced for A Level Maths but becomes a very reliable tool for correcting stupid errors.
  • This is an amazing device, I connect it to my computer without any problems.
  • I was upset that after a while I began to notice that the battery was not durable. I had to change the batteries often.
Warranty / Certifications
Manufacturer Warranty
3 year(s)
3 year(s)
Other Information

Price History

Other reviews