We may not have a concrete release date for the first foldable iPhone, but Apple may already be looking into a smaller device that will follow it up. According to Bloomberg‘s Mark Gurman, Apple is exploring a “square, clamshell-style foldable phone,” with the caveat that this potential device is “far from guaranteed to reach the market” and only “under consideration” right now.

If this eventually leads to a smaller foldable iPhone, that means Apple believes it can compete against existing options on the market, including Samsung’s latest Galaxy Z Flip 7 and Motorola’s revamped Razr foldable. Gurman’s report also signaled that Apple may be very optimistic about the success of its first foldable iPhone, which is rumored to be released sometime later this year, and wants to have follow-up plans ready to capitalize on the potential demand generated.

It’s not the first time that we’ve heard of a clamshell foldable iPhone, since a previous report from The Information revealed that Apple created prototypes in this form factor. On the other end of the spectrum, Gurman’s Power On newsletter mentioned that Apple is considering a larger foldable that opens like a book. Previously, Gurman said that Apple considered a foldable that’s more akin to the size of an iPad. However, the company ran into issues developing such a large device and may be delaying a potential launch to 2029, according to Gurman.