The phrase "design feat" refers to an impressive or remarkable accomplishment in the field of design. It describes something that is skillfully created, innovative, and stands out as a notable achievement in terms of its design. Full definition
It's an amazing design feat that fits well in one hand. (geardiary.com)
Do you avoid using original artwork in your home because it seems like an intimidating design feat? (fieldstonehilldesign.com)
One of the biggest design feats here is that it feels like a unibody design, though it's constructed with a mix of Gorilla Glass 4, glossy plastic on its sides, and an oleophobic (oil resistant) plastic on the back that's influenced by the look and feel of ceramic. (techradar.com)