They need to make a high-end phone, a Z3 Compact competitor with a nice screen, camera, solid build + their backwards-compatible TOH v2 (faster data transfer)

They need to make a high-end phone, a Z3 Compact competitor with a nice screen, camera, solid build + their backwards-compatible TOH v2 (faster data transfer) and then they'd be golden Moving to a new UI size without resolving all phone-related problems? A bad idea IMHO