--- product_id: 533225881 title: "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: "¥11479" currency: JPY in_stock: true reviews_count: 9 url: https://www.desertcart.jp/products/533225881-991es-plus-scientific-calculator-with-writing-tablet-417-function-solar store_origin: JP region: Japan --- # 6.5-inch writable tablet 417 advanced functions solar + replaceable battery 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:** ¥11479 **Availability:** ✅ In Stock ## Summary > 🧮 Elevate your calculations and notes—because precision meets productivity in one sleek device! ## Quick Answers - **What is this?** 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?** ¥11479 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/533225881-991es-plus-scientific-calculator-with-writing-tablet-417-function-solar) ## 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 - • **Eco-Smart Energy:** Solar-powered with a backup replaceable battery ensures uninterrupted performance wherever you go. - • **Portable & Protected:** Foldable design with magnetic closure shields your device from dust and bumps—perfect for professionals on the move. - • **All-in-One Powerhouse:** Combine complex calculations with instant note-taking on a sleek 6.5-inch writing tablet—never miss a detail again. - • **Responsive & Comfortable Keys:** Premium plastic keys deliver tactile accuracy and a satisfying touch for long study or work sessions. - • **417 Functions at Your Fingertips:** From matrix operations to polar conversions, handle every scientific challenge with precision and speed. ## Overview The NEWYES 991ES Plus is a professional-grade scientific calculator featuring 417 advanced functions and a 6.5-inch integrated writing tablet. Powered by solar energy with a replaceable battery backup, it offers a responsive key design and a foldable, dust-resistant case. Ideal for students, teachers, and professionals seeking a portable, eco-friendly solution for complex calculations and note-taking. ## Description NEWYES is a professional researcher, manufacturer and seller for paperless office and school supplies. is our mission statement because saving trees and being active in caring for the environment is important to us. This is not just a statement, it is a way of life to us. We are truly committed to developing products that Practical to life and Friendly to the earth. powerful magnetic closure The sturdy frame protects the calculator from bumps and prevents accidental power-ups from pressure. great for on-the-go For students, engineers teachers and people who often have sudden calculation and recording needs. NY-991EX NY-82MS NY-991MS NY-991ES MAX NY-991ES ## 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 | 2,341 in Stationery & Office Supplies (See Top 100 in Stationery & Office Supplies) 22 in Scientific Calculators | | Brand Name | NEWYES | | Calculator Type | Engineering/Scientific | | Colour | Midnight Black | | Country Of Origin | China | | Customer Reviews | 4.6 4.6 out of 5 stars (223) 4.6 out of 5 stars | | 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 CR2032 batteries required. (included) | | Number Of Items | 1 | | Power Source | Battery Powered | | Product Warranty | 1 year | | Screen Size | 6.5 Inches | ## Product Details - **Brand:** NEWYES - **Calculator Type:** Engineering/Scientific - **Colour:** Midnight Black - **Display type:** LCD - **Material:** Plastic - **Model name:** NY-CAL - **Number of batteries:** 1 CR2032 batteries required. (included) - **Power source:** Battery Powered - **Product dimensions:** 16.2L x 1.8W centimetres - **Screen size:** 6.5 Inches ## Images ![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 **Set** 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 ### ⭐⭐⭐⭐⭐ A Versatile Calculator with Clever Stylus Pad – Great for A-Level and Engineering! *by on Reviewed in the United Kingdom 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. COMP2, CMPLX3. 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. ### ⭐⭐⭐⭐⭐ Amazing product *by on Reviewed in the United Kingdom 27 July 2026* Got this for my son has had it for 2 years works amazing definitely worth buying it ### ⭐⭐⭐⭐⭐ Excellent for the money! *by on Reviewed in the United Kingdom 23 June 2026* Needed this for a course in short notice whilst working away from home. No complaints at all. ## 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.jp/products/533225881-991es-plus-scientific-calculator-with-writing-tablet-417-function-solar](https://www.desertcart.jp/products/533225881-991es-plus-scientific-calculator-with-writing-tablet-417-function-solar) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-14*