Advertising Disclosure Casio Classwiz Fx 991ex Comparison - August 2025
6 Best Casio Classwiz Fx 991ex In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
Advertising Disclosure
| 1 Best Choice  9.7Exceptional | 2 Best Value  9.4Excellent | 3  9.1Excellent | 4  9.0Very Good | 5  8.8Very Good | 6  8.7Very Good |
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ModelCasio FX-991DE X (German) | Model Casio fx-991CW Advanced Scientific Calculator (UK Version) | Model OSALO Scientific Calculator 417 Function 2 Line 10+2 Digits Written Display Solar and Battery Calculators for Students Secondary School College Black (OS 991ES Plus 2nd Edition) | Model Casio FX-991 CW (Italian Model) Scientific Calculator, 540 Functions and Natural Display | Model CASIO Calculator Scientific FX 991CEX CLASSWIZ Black 12-Digit Display, 4 Languages, Hungarian, Polish, Czech, Slovak. | Model CLIUNT FX-991EX Scientific Calculator, Engineering Scientific Calculator With 552 Functions, Lcd Display Scientific Calculators for School Students |
BrandCASIO | Brand Casio | Brand OSALO | Brand Casio | Brand Casio | Brand CLIUNT |
Reviews | Reviews  | Reviews | Reviews  | Reviews | Reviews |
Features | |||||
Worth the money 9.6 | Worth the money 9.3 | Worth the money 7.9 | Worth the money 7.6 | Worth the money 7.4 | Worth the money 7.2 |
Simple to use 9.6 | Simple to use 9.6 | Simple to use 7.9 | Simple to use 7.6 | Simple to use 7.4 | Simple to use 7.2 |
Tech Specs | |||||
product dimensions16.6 x 7.7 x 1.1 cm 90 g | product dimensions 16.2 x 7.7 x 1.1 cm 150 g | product dimensions 16.4 x 1.7 x 0.1 cm 150 g | product dimensions 16.2 x 7.7 x 1.07 cm 95 g | product dimensions 25.4 x 5.08 x 6.86 cm 240 g | product dimensions 16.5 x 8 x 0.1 cm 160 g |
batteries1 CR123A batteries required. included | batteries 1 LR44 batteries required. | batteries 1 LR44 batteries required. included | batteries 1 LR44 batteries required. included | batteries - | batteries 1 CR2 batteries required. |
Available On | Available On | Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.1
3OSALOOSALO Scientific Calculator 417 Function 2 Line 10+2 Digits Written Display Solar and Battery Calculators for Students Secondary School College Black (OS 991ES Plus 2nd Edition)
7.9 worth the money7.9 Simple to useWhy we love it
Extensive range of scientific functions.
Readable two-line display.
Dual power for reliability.
Our ranking system
The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.
Features
Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
Consumer Reviews
We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
Popularity
Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
