The Galaxy M51 will have a bigger display than was previously suggested, according to a new leak. Samsung's upcoming mid-range handset is now thought to feature a 6.67-inch AMOLED screen, along with a 7,000 mAh battery and 8 GB of RAM.
https://www.notebookcheck.net/Samsung-Galaxy-M51-is-tipped-to-feature-a-6-67-inch-AMOLED-screen-with-a-7-000-mAh-battery-and-a-64-MP-camera.488950.0.html