--- product_id: 533225881 title: "NEWYES 991ES Plus Scientific Calculator with Writing Tablet, 417 Function with Solar Battery, Professional Upgraded 991ES Plus Calculator Portable Notepad Back to School Supplies for Student, Teacher" brand: "newyes" price: "£39.43" currency: GBP in_stock: true reviews_count: 13 category: "Newyes" url: https://www.desertcart.co.uk/products/533225881-newyes-991es-plus-scientific-calculator-with-writing-tablet-417-function store_origin: GB region: United Kingdom --- # 417 advanced functions 6.5-inch writable tablet solar + replaceable battery NEWYES 991ES Plus Scientific Calculator with Writing Tablet, 417 Function with Solar Battery, Professional Upgraded 991ES Plus Calculator Portable Notepad Back to School Supplies for Student, Teacher **Brand:** newyes **Price:** £39.43 **Availability:** ✅ In Stock ## Summary > 📊 Elevate your calculations—where precision meets productivity! ## Quick Answers - **What is this?** NEWYES 991ES Plus Scientific Calculator with Writing Tablet, 417 Function with Solar Battery, Professional Upgraded 991ES Plus Calculator Portable Notepad Back to School Supplies for Student, Teacher by newyes - **How much does it cost?** £39.43 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/533225881-newyes-991es-plus-scientific-calculator-with-writing-tablet-417-function) ## Best For - newyes enthusiasts ## Why This Product - Trusted newyes brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-in-One Powerhouse:** Master complex calculations with 417 built-in functions tailored for engineers, students, and pros. - • **Compact & Travel-Ready:** Foldable design protects your calculator and notepad from dust, fitting perfectly in your bag or backpack. - • **Eco-Friendly & Long-Lasting:** Dual solar panel and replaceable battery ensure uninterrupted performance wherever you go. - • **Precision at Your Fingertips:** Premium plastic keys deliver ultra-responsive, comfortable typing for error-free input every time. - • **Write & Calculate Seamlessly:** Integrated 6.5-inch writing tablet lets you jot notes and erase instantly—no more switching devices. ## Overview The NEWYES 991ES Plus is a professional-grade scientific calculator featuring 417 functions including matrix, vector, and statistical operations. It uniquely combines a 6.5-inch writable tablet for note-taking with a solar-powered, replaceable battery system. Designed with premium tactile keys and a foldable, dust-resistant cover, it’s the ultimate portable tool for students, teachers, and professionals seeking efficiency and versatility. ## Description Free delivery on eligible orders. Buy NEWYES 991ES Plus Scientific Calculator with Writing Tablet, 417 Function with Solar Battery, Professional Upgraded 991ES Plus Calculator Portable Notepad Back to School Supplies for Student, Teacher at desertcart UK. Review: As described - Great little calculator .. As described . Review: A Versatile Calculator with Clever Stylus Pad – Great for A-Level and Engineering! - Surprisingly useful calculator for A-Level, Engineering etc. The stylus-notepad is fun, useful and conveniently easy to use. The calculator is a standard scientific, broadly in line with the old workhorse Casio fx-991EX. Under the MODE menu we have: 1. COMP 2, CMPLX 3. STAT (1 variable and 2-Variable Regression of all kinds) 4. BASE-N (DEC, HEX, BIN, OCT; includes logic functions e.g. XNOR, NEG) 5. EQN (Up to cubics; others available via the SOLVE function) 6. MATRIX (Up to three 3 x 3) 7. TABLE (Single function f(x) only) 8. VECTOR (2-dim or 3-dim with dot and cross product) Good to have the functions accessible via buttons rather than deep menus. Factorial, nCr and nPr for example, are accessible using only the SHIFT key. The very useful ":" multi-statement button enables you to show a sequence of calculations with successive presses of the = button, and the ANS key adds another layer of useful recursion. Numerical differentiation and integration work fine, and there's a Sigma template for summing single-variable functions over a given range. All in all, good value for money and the folder stylus pad makes the most useful calculator cover out there. ## Features - 【Scienticfic Calculator with Notepad】Come with a 6.5 inch writing tablet and a pen, which allows you to take notes while calculating. You can press the delete button to erase the notes, and also can lock it to keep it. - 【417 Computing Functions】 Include CALC, SOlVE, Base-N, EQN, MATRIX, MATRIX, TABLE, VECTOR, fractions, variable statistics, complex number calculations, linear regression, base arithmetic, computer science, standard deviation, and polar-rectangular conversions, etc.. - 【More Sensitive Key】Adopt premium plastic material key, which makes it more sensitive and more precise than silicone key. Comfortable to touch. - 【Solor Energy】Solar panel + replaceable button battery for smooth trial and long battery life. - 【Foldable & Portable】NEWYES Calculator Notepad is foldable, closed to dust, easy storage, easy to carry. Ideal for junior & high school students, college students and professional researchers. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C64T6XFG | | Best Sellers Rank | 7,917 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 43 in Scientific Calculators | | Brand Name | NEWYES | | Calculator Type | Engineering/Scientific | | Colour | Black | | Country of Origin | China | | Customer Reviews | 4.4 4.4 out of 5 stars (1,467) | | Display Type | LCD | | Enclosure Material | Plastic | | Item Dimensions L x W | 16.2L x 1.8W centimetres | | Item Weight | 153 Grams | | Manufacturer | NEWYES | | Manufacturer Part Number | NY991ES | | Model Name | NY-CAL | | Model Number | NY-991ES Plus | | Number of Batteries | 1 9V batteries required. (included) | | Power Source | Battery Powered | | Product Warranty | 1 year | | Screen Size | 6.5 Inches | ## Product Details - **Brand:** NEWYES - **Calculator Type:** Engineering/Scientific - **Colour:** Black - **Display type:** LCD - **Material:** Plastic - **Model name:** NY-CAL - **Number of batteries:** 1 9V batteries required. (included) - **Power source:** Battery Powered - **Product dimensions:** 16.2L x 1.8W centimetres - **Screen size:** 6.5 Inches ## Images ![NEWYES 991ES Plus Scientific Calculator with Writing Tablet, 417 Function with Solar Battery, Professional Upgraded 991ES Plus Calculator Portable Notepad Back to School Supplies for Student, Teacher - Image 1](https://m.media-amazon.com/images/I/71BT64LmInL.jpg) ## Available Options This product comes in different **Color, Style** options. ## Questions & Answers **Q: How do you delete the writing? Pressing the button as per instryctions doesn't work. Also the video showing how to retrieve the stylus is useless.** A: I have two of these calculators and both work fine. The big round button at the top (to the right side of the solar panel) will clear the writing. Maybe you have a faulty one. The pen just slides out. **Q: where is the stylus? i can't find it..** A: please see the video, thanks. **Q: how long the batteries in these LCD display last?** A: a year or more and it depends on how many times you use. **Q: How do you change the battery? Mine arrived dead.** A: Unscrew the screw and unclip/slide it out. ## Customer Reviews ### ⭐⭐⭐⭐⭐ As described *by S***L on 27 February 2026* Great little calculator .. As described . ### ⭐⭐⭐⭐⭐ A Versatile Calculator with Clever Stylus Pad – Great for A-Level and Engineering! *by T***R on 29 May 2025* Surprisingly useful calculator for A-Level, Engineering etc. The stylus-notepad is fun, useful and conveniently easy to use. The calculator is a standard scientific, broadly in line with the old workhorse Casio fx-991EX. Under the MODE menu we have: 1. COMP 2, CMPLX 3. STAT (1 variable and 2-Variable Regression of all kinds) 4. BASE-N (DEC, HEX, BIN, OCT; includes logic functions e.g. XNOR, NEG) 5. EQN (Up to cubics; others available via the SOLVE function) 6. MATRIX (Up to three 3 x 3) 7. TABLE (Single function f(x) only) 8. VECTOR (2-dim or 3-dim with dot and cross product) Good to have the functions accessible via buttons rather than deep menus. Factorial, nCr and nPr for example, are accessible using only the SHIFT key. The very useful ":" multi-statement button enables you to show a sequence of calculations with successive presses of the = button, and the ANS key adds another layer of useful recursion. Numerical differentiation and integration work fine, and there's a Sigma template for summing single-variable functions over a given range. All in all, good value for money and the folder stylus pad makes the most useful calculator cover out there. ### ⭐⭐⭐⭐ Great features. *by B***G on 12 April 2026* Functionally, amazing. Has all the features you'd expect and possibly some you hadn't thought about. One frustrating feature is 'it rocks' when I try to write on the screen. The hinges aren't central and the screen sits about 3mm high. When I put weight on the screen (RHS) the left hand side lifts up. ## Frequently Bought Together - NEWYES Scientific Calculator, 991ES Plus with Writing Tablet, 417 Function, Folding Protective Cover Suitable for Secondary School, University, Graduate students, Engineers - Helix Oxford Maths Set with Storage Tin - 10 Piece Maths Equipment Set - Pritt Glue Stick, Safe & Child-Friendly Craft Glue for Arts & Crafts Activities, Strong-Hold adhesive for School & Office Supplies, 22 g (Pack of 3) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/533225881-newyes-991es-plus-scientific-calculator-with-writing-tablet-417-function](https://www.desertcart.co.uk/products/533225881-newyes-991es-plus-scientific-calculator-with-writing-tablet-417-function) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-22*