The phrase "notch trend" refers to a popular design trend wherein a small cut-out or notch is made at the top of a screen or display to house various sensors and cameras. Full definition
No longer do Android users need to fear the new display notch trend. (android.gadgethacks.com)
Even though the iPhone X wasn't the first handset with a notch (please see examples A and B), after Apple added cutouts to its $ 1,000 phone, a lot of Android fans suddenly developed strong feeling about the whole notch trend. (gizmodo.com)
Mint jeans to channel the pastel trend for spring, a new iPhone 4S in chic white to replace my aging iPhone 4, a timeless tweed jacket, fun black wedges to wear with sundresses on the warmer days ahead, classic black and white nautical dress, and girlie bow flats to take my work attire up a notch (myhereandnowlife.com)