This calculator is the best in the world and a design classic!
The Aurora DT210 is a design masterpiece.
It's easy to take for granted when something simply works, but the Aurora DT210 deserves closer inspection. Its design, both in form and function, reveals thoughtful consideration that elevates it beyond a mere tool.
It is durable
There was no planned obsolescence when they designed this product. I have probably owned it for 25+ years and it is still going strong. The combination of its simple design, quality material choice and the solar power means there has been no need to change a battery — not once. This calculator is built to last. In fact, this calculator could survive a fall from orbit.
It was designed for me
Its simplicity is its strength. Even someone unfamiliar with complex calculations (like me) can easily use its intuitive functions, like the dedicated percentage button. No need to remember the divide what you have by what it is, times 100 or something like that.
There are just enough buttons and none with weird symbols.
Practical, accessible design
- Intuitive layout: The buttons are grouped perfectly. Numbers on the left, operators on the right with basic memory functions in a row above. The equals button is the last button on the bottom-right. When doing speed calculations, it is instinctive to find this button due to its considered placement. The addition button, the button that is used most, is easiest to press.
- Tactile feedback: The spacing between buttons avoids the accidental pressing of adjacent buttons. Spacing that would be considered excellent in modern touch screen design.
- Visual clarity: The light grey colour of the base provides high contrast for the coloured buttons. For those with colour blindness, there is very little to get mixed up. Just a single red button for the power on button (which doubles up as the clear function) making it extremely easy to locate. The only other colour used is blue for the memory buttons. No icons, but clear text labels.
- Thoughtful details: The slight tilt of the display makes for easier reading. The large digit LCD display is clear to read. The insetting of the Off and On buttons indicates their unique function. On the reverse, the moulded plastic has grips.
You can still be silly
Importantly, this calculator still allows you to create words from numbers. The classic…
And for the immature among us…
Rounding things up
The Aurora DT210 exemplifies principles that are equally vital in web design: intuitive layout, clear visual hierarchy, and a focus on essential functionality. These principles, from colour contrast to button placement, translate directly to creating user-friendly digital experiences.
At Kindera, we are a bit strange. We see the beauty in simplicity and the power of thoughtful design, ensuring every project we undertake is crafted with the same level of care as the Aurora DT210.
Let Kindera bring the same level of considered design to your next project.
Simon Leadbetter,
The Accessibility Guy at Kindera
