---
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: "€ 73.53"
currency: EUR
in_stock: true
reviews_count: 13
category: "Newyes"
url: https://www.desertcart.hr/products/533225881-newyes-991es-plus-scientific-calculator-with-writing-tablet-417-function
store_origin: HR
region: Croatia
---

# 6.5-inch writable tablet 417 advanced functions solar + button battery power 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:** € 73.53
**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?** € 73.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/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

- • **Eco-Friendly Dual Power:** Solar panel backed by replaceable button battery ensures uninterrupted performance wherever you go.
- • **Responsive, Premium Keys:** Experience tactile precision with high-quality plastic keys designed for speed and comfort during long sessions.
- • **Compact, Foldable & Travel-Ready:** Protective magnetic closure and slim foldable design fit perfectly in your backpack or briefcase for on-the-move productivity.
- • **417 Functions for Every Challenge:** From matrix algebra to polar conversions, conquer any STEM problem with professional-grade versatility.
- • **All-in-One Calculation & Note Taking:** Seamlessly switch between complex computations and jotting quick notes on the integrated writing tablet.

## Overview

The NEWYES 991ES Plus is a professional scientific calculator featuring 417 functions including advanced matrix, vector, and statistical operations. It integrates a 6.5-inch writable tablet with a stylus for note-taking alongside calculations. Powered by solar energy plus a replaceable button battery, it offers long-lasting use. Its foldable, dust-proof design with magnetic closure makes it ultra-portable and durable, ideal for students, engineers, and educators seeking a versatile, all-in-one tool.

## Description

Product Description powerful magnetic closure Just put it in your backpack casually The sturdy frame protects the calculator from bumps and prevents accidental power-ups from pressure. great for on-the-go Portable design & pocket size For students, engineers teachers and people who often have sudden calculation and recording needs. Comparison Chart - Calculation Function NY-991EX NY-82MS NY-991MS NY-991ES MAX NY-991ES

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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | NEWYES |
| Calculator Type | Engineering/Scientific |
| Colour | Black |
| Number of batteries | 1 9V batteries required. (included) |
| Power source | Battery Powered |
| 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)
![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 2](https://m.media-amazon.com/images/I/71IeyFTvD1L.jpg)
![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 3](https://m.media-amazon.com/images/I/71hVfXUqi4L.jpg)
![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 4](https://m.media-amazon.com/images/I/71zT7Sk4qIL.jpg)
![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 5](https://m.media-amazon.com/images/I/61EmRRZPM8L.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
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- Pritt Glue Stick, Safe & Child-Friendly Craft Glue for Arts & Crafts Activities, Strong-Hold adhesive for School & Office Supplies, 22 g (Pack of 3)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-06-21*