Small?! At just 5.4′ I’d call it a Mini.
How feasible is this design? Wouldn’t the rear cameras be proportionally much larger than what we’re seeing here? How big would the battery be and how long might it last with a top-tier chipset? How thick might the phone have to be? Do enough of the people who want a phone with a display this small also need three cameras? Where could you put a fingerprint scanner?