The latest potential Samsung Galaxy S4 leak actually occurred in the real world, not online, but it's just as specious as the rest.
At CeBIT 2013, a mobile phone expo currently happening in Hanover, Germany, a Chinese manufacturer displayed what it claims are plastic cases made to protect the upcoming Galaxy S4 -- made to the S4's specifications.
A video from Mobile Geeks compares cases for the Galaxy S III side-by-side with the new cases. It looks like the S IV is actually thicker than the S III, though the S III is a bit longer. The S IV also has corners that are much more squared than the S III's -- while the top and bottom of the S III are a bit curved, it looks like the S IV's are flat.
The opening for the power button on the S IV case is in the same location as on the S III. There's also a hole on the bottom for the USB charger, but there's an additional opening next to it, maybe for a mic in.
The three holes on the back allow access to the camera flash, camera lens and speaker, though they are placed slightly lower on the body of the phone. The speaker may also have two sections, though some of the cases only have one opening.
"We'll notice that this doesn't seem to be the first time these Galaxy S4 cases got the attention of the press," writes Android Authority. "In addition to today's Mobile Geeks video, we also have a mid-February report from MobileFun featuring similar Galaxy S4 case designs."
"It wouldn't be the first time that Chinese case makers got it completely wrong, and we'll just remind you the iPhone 5 case bonanza that hit the web prior to the iPhone 4S announcement. As it turned out, Apple unveiled only the iPhone 4S back in fall 2011, and the handset didn't fit in any of the case models that were leaked before its arrival fit the actual device."
We won't know for sure until the Galaxy S IV launch event in Times Square on Mar. 14. Check back for the latest updates as they become available.