Device said to boast 5-inch 1080p display, at least 2GB of RAM and a 13-megapixel rear camera.
Samsung may be preparing to launch its successor to the Galaxy S3 during the April of 2013, with the unannounced device's codename said to be 'Project J'.
The Galaxy S4 is rumored to feature a 1080p display, at least 2GB of RAM and a 13-megapixel camera situated at the back of the smartphone.
Other speculation has suggested that the Galaxy S4 will be the first eight-core smartphone. It's said to boast four Cortex-A15 cores along with four Cortex-A7s.
Samsung may also be working on a 13.3-inch tablet to rival Asus' Transformer slate, with the former apparently set to sport a QWERTY keyboard dock.
As for when the reveal for the Galaxy S4 will come into fruition, separate reports has suggested the device will debut during the Consumers Electronics Show in January, 2013.