The phrase "a slim design" is correct and usable in written English.
It can be used to describe an object, product, or concept that has a thin or sleek appearance, often implying elegance or modernity.
Example: "The new smartphone features a slim design that makes it easy to carry in your pocket."
Alternatives: "a sleek design" or "a slender design."
This $40 phone features an E Ink screen that won't crack and a slim design.
That said, there are certainly limitations inherent in a slim design, which we are hard at work on.
Other features include a 5ms response rate, 20,000 1 dynamic contrast ratio, VGA/DVI inputs, and a slim design weighing 16 pounds.
If you want to put a Raspberry Pi into a constrained location, the Raspberry Pi Zero models have a slim design and don't require a ton of power.
Featuring a slim design and breathtaking picture quality that is second to none, this line of AQUOS LCD TVs provides the ultimate home entertainment experience with the perfect balance of style and function.
The Casio Exilim EX-Z75 has a slim design, multiple color options, a 7.2-megapixel CCD, 3x optical zoom, anti-shake DSP, movie mode, 8MB of internal memory with an SD/MCC card slot, and a battery with a decent amount of juice inside.
The iPad Mini is expected to have a higher-resolution display, while the bigger iPad is expected to have a slimmer design, weighing about a pound.
The full-size iPad, with a 9.7-inch screen, was renamed the iPad Air, because it has a slimmer design and has lost some weight.
In addition to simplified scrolling and a slimmer design, the new iPods claim a longer rechargeable battery life, up to 12 hours, compared with the 8 hours offered by last year's model.
The new device should pack a better processor in a slimmer design with more internal storage.
A slimmer design and more internal storage wouldn't be a surprise, as well.
