iPhone now has an ultrathin 'Air' line. Here's why it's different.

Apple introduced the iPhone 17 Air , the newest version of the iPhone , as a part of its suite of unveilings at the "Awe Dropping" event on Sept. 9.

The ultra-slim model replaces the second level Plus line of iPhones. However, it wasn't positioned as a replacement for the Plus, but as the company exploring a new design trend.