Desk Calculator DX-829
#42
NGIFERA

NGIFERA Desk Calculator DX-829

Rating

Model: DX-829
$8.99(incl. tax)Amazon price as of 2025-09-29
Buy on Amazon

Product Overview

The NGIFERA Desk Calculator DX-829 is designed with a focus on aesthetics and functionality. It features a 12-digit large LCD display and big buttons for easy and accurate input. The calculator offers dual power options with solar and battery, ensuring continuous operation. Crafted from ABS plastic, it provides a smooth and premium feel. It includes functions like independent memory, M+, M-, GT, delete, and percentage. The anti-slip pads ensure stable use. It is suitable for homes, schools, offices, and stores, handling basic math and financial functions for both adults and students. The design mimics a mechanical keyboard, providing a satisfying clicking sound with each press. It automatically shuts off after 10 minutes of inactivity.

Share

Product Images

NGIFERA Desk Calculator DX-829 の商品画像 1
NGIFERA Desk Calculator DX-829 の商品画像 2
NGIFERA Desk Calculator DX-829 の商品画像 3
NGIFERA Desk Calculator DX-829 の商品画像 4
NGIFERA Desk Calculator DX-829 の商品画像 5

Product Specifications

Digit Displayed
12digits
Power Source
Battery Powered/Solar Powered
Display Type
LCD
Key Type
-
Dimensions
-mm
Weight
-g
Memory Function
Yes
Tax Calculation
No
Percentage Calculation
Yes

Size & Weight

Weight
3.2 ounces
Hight
5 inches
Width
5 inches
Depth
0.1 inches

Features

Tax Calculation Function

This calculator does not include a dedicated tax calculation function. Users will need to manually calculate tax amounts using the basic arithmetic functions. This may require additional steps for tasks involving tax calculations.

Memory Function

Features independent memory (M+, M-, GT) for storing and recalling numerical values, making it easier to perform multi-step calculations and reuse frequently used numbers. This function simplifies complex calculations and reduces errors.

Square Root Calculation Function

It does not have a square root calculation function. Users needing to calculate square roots will need to use external tools or manual methods. This limits its use in certain mathematical applications requiring square root calculations.

Percentage Calculation Function

Includes a percentage calculation function, which simplifies calculating discounts, profit margins, and other percentage-related tasks, making it useful for shopping and data analysis. This function avoids the need for complex manual calculations.

Sign Change Function

The sign change function is available via the M+/M- memory functions, allowing users to effectively manage positive and negative values during calculations. This simplifies calculations involving debits, credits, and temperature changes.

Decimal Place Setting Function

Does not offer a decimal place setting function. The calculator displays results with a fixed number of decimal places, which may not be ideal for applications requiring specific decimal precision.

SHOPSTAFF Rating Score

#42
Ranked #42 out of 83 products in Category
3.9
Overall Rating

This calculator is affordable and stylish, suitable for basic calculations. However, it lacks advanced functions and may not be durable for heavy use. It's a good option for students or home users needing a simple calculator.

Display Size and Readability
4.0
The large LCD display ensures numbers are easily readable, reducing eye strain during prolonged use. The 12-digit capacity is sufficient for most basic calculations, making it suitable for students and home users.
Key Size and Tactile Feedback
4.0
The big buttons are designed for fast and error-free input. The keys mimic the feel of a mechanical keyboard, providing a satisfying clicking sound. This tactile feedback enhances the overall user experience and improves accuracy.
Basic Functionality and Features
4.0
It includes essential functions such as addition, subtraction, multiplication, division, and percentage calculations. The memory function (M+, M-, GT) is a useful addition for multi-step calculations, making it versatile for everyday tasks.
Power Source and Battery Life
4.5
The dual power option with solar and battery ensures reliable performance in various lighting conditions. The automatic power-off feature after 10 minutes of inactivity helps conserve battery life, extending the usage period. Note: Batteries are not included.
Durability and Build Quality
3.5
Crafted from ABS plastic, the calculator offers a smooth and premium feel. The anti-slip pads ensure stable, slip-free use. However, the overall durability may not withstand heavy daily use or accidental drops, making it more suitable for light use.
Size and Portability
4.0
The calculator's dimensions are suitable for desk use, providing a comfortable viewing angle with its 15° ergonomic design. While not extremely compact, it is still portable enough for school, travel, or home use, fitting comfortably on most desks.
Manufacturer Reliability and Warranty
3.0
NGIFERA is a relatively new brand established in 2021, specializing in desktop accessories. While they offer 24 months of technical support, the long-term reliability is still uncertain compared to more established brands in the calculator market.
Cost Performance
4.5
At a price of $8.99, this calculator offers excellent value for its features and design. It provides a good balance of functionality and aesthetics, making it a cost-effective option for students, home users, and anyone needing a basic calculator.

Brand & Manufacturer Details

NGIFERA
NGIFERA is a brand specializing in desktop accessories, committed to enhancing your home and office with innovative and practical products.

Key Highlights

  • Affordable price
  • Aesthetic design
  • Large LCD display

Considerations

  • Avoid dropping
  • Keep away from moisture
  • Batteries not included

Recommended For

  • Students
  • Home users
  • Users needing basic calculations

Not Recommended For

  • Accountants
  • Engineers
  • Users requiring advanced functions

Suitable For

  • School
  • Home
  • Basic office tasks

Not Suitable For

  • Complex financial analysis
  • Scientific research
  • Heavy office use

Frequently Asked Questions (FAQ)

Q.I'm worried about the quality. What if it breaks easily?
A.The calculator is made from durable ABS plastic and designed for comfortable use. It also features anti-slip pads for stability. NGIFERA offers 24 months of technical support. If you're not satisfied, you can contact them for assistance.
Q.I need a calculator for school, but I'm on a tight budget. Is this a good option?
A.Yes, according to staff confirmation, this calculator is a budget-friendly tool that's simple, reliable, and does exactly what you need for school without overcomplicating things. It's especially recommended for students studying subjects like real estate.
Q.Does this calculator require batteries?
A.The calculator uses dual power, with both solar and battery options. It is designed to maximize solar energy use. Note that batteries are not included.
Q.I have a small desk. Is this calculator too bulky?
A.According to staff confirmation, the size is great—not too small, but also not overwhelmingly bulky, making it suitable for smaller desks.
Q.Are the buttons easy to press, or are they too small?
A.The calculator features large buttons that respond quickly and accurately, providing a satisfying experience with a distinct clicking sound. Staff confirmation mentions the buttons feel good to press.
Q.Is the display easy to read?
A.Yes, the calculator has a large LCD display that is easy on the eyes, according to staff confirmation. The display is also designed with a 15° ergonomic angle for optimal viewing and reduced fatigue.
Q.I need a calculator for basic math and financial functions. Is this suitable?
A.Yes, this portable desktop calculator is perfect for handling basic math and financial functions, making it great for both adults and students in homes, schools, offices, and stores.
Q.I saw one staff confirmation that the top row graphic color is invisible. Is this a common problem?
A.While one staff confirmation mentioned the top numeric row graphic color being unreadable, the majority of staff confirmation does not mention this issue. It may be an isolated incident, but it's something to consider.

SHOPSTAFF Rating Ranking

#1

Texas Instruments

TI-503 SV Standard Function Calculator

$690(incl. tax)Amazon price as of 2025-09-24

Pocket-sized, durable calculator with a clear SuperView display for easy calculations at home, school, or office.

Digit Displayed8 digitsPower SourceBattery
Display TypeLCDKey TypeRubber
Dimensions121.1x78.7x2.5 mmWeight81.6 g
Memory FunctionYesTax CalculationNo
Percentage CalculationNo
Tax Calculation FunctionMemory FunctionSquare Root Calculation FunctionPercentage Calculation FunctionSign Change FunctionDecimal Place Setting Function
4.4Overall Rating
4.2Display Size and Readability
4.3Key Size and Tactile Feedback
4.0Basic Functionality and Features
4.5Power Source and Battery Life
4.4Durability and Build Quality
4.6Size and Portability
4.7Manufacturer Reliability and Warranty
4.5Cost Performance
#2

DANRONG

Mechanical Switch Calculator with Big Buttons

$6.99(incl. tax)Amazon price as of 2025-09-29

Mechanical switch calculator with big buttons, large LCD display, and ergonomic design. Ideal for students and teachers.

Digit Displayed12 digitsPower SourceBattery
Display TypeLCDKey TypeABS
Dimensions4.4 x 6.3 x 0.04 inchesWeight5.3 ounces
Memory FunctionNoTax CalculationNo
Percentage CalculationYes
Tax Calculation FunctionMemory FunctionSquare Root Calculation FunctionPercentage Calculation FunctionSign Change FunctionDecimal Place Setting Function
4.4Overall Rating
4.5Display Size and Readability
4.7Key Size and Tactile Feedback
4.0Basic Functionality and Features
4.8Power Source and Battery Life
4.3Durability and Build Quality
4.5Size and Portability
3.5Manufacturer Reliability and Warranty
4.7Cost Performance
#3

deli

Deli Standard Function Desktop Calculator E8

$8.99(incl. tax)Amazon price as of 2025-09-29

Standard desktop calculator with 12-digit LCD, sensitive buttons, and dual power (solar/battery) for office, home, or school.

Digit Displayed12 digitsPower SourceBattery Powered, Solar Powered
Display TypeLCDKey TypeABS material durable plastic
Dimensions- mmWeight- g
Memory FunctionYesTax CalculationNo
Percentage CalculationYes
Tax Calculation FunctionMemory FunctionSquare Root Calculation FunctionPercentage Calculation FunctionSign Change FunctionDecimal Place Setting Function
4.3Overall Rating
4.5Display Size and Readability
4.3Key Size and Tactile Feedback
4.0Basic Functionality and Features
4.7Power Source and Battery Life
4.2Durability and Build Quality
4.4Size and Portability
4.0Manufacturer Reliability and Warranty
4.5Cost Performance
#4

deli

Standard Function Basic Calculator 1200

$4.99(incl. tax)Amazon price as of 2025-09-29

Deli Standard Function Basic Calculator with 12-digit LCD, dual power, and comfortable silicone buttons. Stylish and practical.

Digit Displayed12 digitsPower SourceBattery Powered & Solar Powered
Display TypeLCDKey TypeSilicone
Dimensions- mmWeight- g
Memory Function-Tax Calculation-
Percentage Calculation-
Tax Calculation FunctionMemory FunctionSquare Root Calculation FunctionPercentage Calculation FunctionSign Change FunctionDecimal Place Setting Function
4.3Overall Rating
4.5Display Size and Readability
4.3Key Size and Tactile Feedback
4.0Basic Functionality and Features
4.7Power Source and Battery Life
4.2Durability and Build Quality
4.8Size and Portability
3.5Manufacturer Reliability and Warranty
4.5Cost Performance
#5

Casio

SL-300VC Standard Function Calculator

$6.35(incl. tax)Amazon price as of 2025-09-29

A compact and lightweight Casio calculator with an 8-digit display, solar and battery power, and basic functions.

Digit Displayed8 digitsPower SourceBattery Powered, Solar Powered
Display TypeLCDKey Type-
Dimensions- mmWeight- g
Memory FunctionYesTax Calculation-
Percentage CalculationPercent
Tax Calculation FunctionMemory FunctionSquare Root Calculation FunctionPercentage Calculation FunctionSign Change FunctionDecimal Place Setting Function
4.3Overall Rating
3.8Display Size and Readability
4.0Key Size and Tactile Feedback
4.0Basic Functionality and Features
4.5Power Source and Battery Life
4.0Durability and Build Quality
4.8Size and Portability
4.5Manufacturer Reliability and Warranty
4.7Cost Performance