LG G3 and its funky Quick Cover case caught riding the metro train
The new lock screen sports precisely such a gigantic circle where the time, date, and other pertinent information, will be displayed when the Quick Cover you see in the picture is closed for added protection. One thing is for sure from these pics - the G3 is a largish handset, so the 5.5" Quad HD display speculation seems primed to pan out. It certainly doesn't look like a phone you can use with one hand, unless you choose LG's Mini View software trickery that shrinks the interface to a section of the display, but that's the price to pay if you want a large screen on your handset, as we've come to realize in the last year or two.
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