How much can you take away from something before you’ve taken away too much? The MINUS Calculator is a great example of a no-frills design that’s so incredibly simplistic, it seems like a monolithic slab of plastic, but it’s a sleek, minimal-yet-fully-functional calculator.

Making a product better isn’t always an additive process, it’s sometimes also subtractive. The MINUS calculator doesn’t come with buttons, color-coded keys, or even a screen for that matter. Everything manifests within the slick, monotone block that is the MINUS. The numbers are bas-relief molded into the calculator’s front panel, and a powerful LED screen shines through the panel’s translucent plastic. The only break in the calculator’s surface is in the top left corner, where the “=” button sits. The MINUS calculator also comes with a battery gauge built into its side, and a proprietary magnetic contact-pin charging port at its base that lets you snap the charger to it whenever it’s low on juice.

Designer: Telekes Design