New Delhi, July 27 -- CUPERTINO - The iPhone you'll be using in Fall 2027 may not have a single physical button.

That is the headline finding from a string of supply chain leaks circulating ahead of Apple's expected 20th anniversary iPhone, tentatively labeled the iPhone 20. Analysts and sources close to the supply chain say Apple is preparing its most significant hardware overhaul since the original device launched in 2007, one built around an all-glass chassis, solid-state haptic controls across every button position, and the largest display Apple has ever shipped in a standard model.

The picture assembled from Bloomberg's Mark Gurman and display analyst Ross Young of DSCC is of a company that intends to treat the 20th anniversary as ...