4" is still the perfect on-the-go smartphone size. Apple has not been wrong about that.
But 4" is too small if it is the only device you have, if you use your device both as your mobile and as a PC or tablet. This has been Apple's blind spot, exacerbated by their focus on higher income customers who can afford multiple devices.
Much of the rest of the world cannot afford multiple expensive devices.
Much of today's youth are mobile only by choice. Since they text rather than make calls, and almost always have headphones with them, the awkwardness of putting a large device to their ear is a non-issue.
But 4" is too small if it is the only device you have, if you use your device both as your mobile and as a PC or tablet. This has been Apple's blind spot, exacerbated by their focus on higher income customers who can afford multiple devices.
Much of the rest of the world cannot afford multiple expensive devices.
Much of today's youth are mobile only by choice. Since they text rather than make calls, and almost always have headphones with them, the awkwardness of putting a large device to their ear is a non-issue.