As the sibling said, I immensely value the single-handed usability. Even the 5/5S screen is approaching too big, because my thumb cannot reach to the far corner

As the sibling said, I immensely value the single-handed usability. Even the 5/5S screen is approaching too big, because my thumb cannot reach to the far corner of the screen. If the rumours of the iPhone 6 having a bigger screen are true, I really hope they don't gimp a smaller version to have less grunt. That's my main gripe with small-screen android phones - they're technically inferior to their physically larger counterparts and marketed as the midrange option.