Sony is rumoured to have plans of releasing Compact and Ultra versions of its Xperia Z4.
Xperia Z4 Compact is expected to offer a 4.7-inch 1080p display, a Snapdragon 810 processor, 3GB of RAM, 32GB of storage, a 20.7-megapixel rear camera and a 5-megapixel front-facing shooter.
The Ultra variant could pack a 6.44-inch or 5.9-inch Quad HD display, a bigger battery, a 16-megapixel camera, 4GB of RAM and a stylus.
Both the devices will come with an IP6X dustproof rating and IPX5 and IPX8-certification.