Samsung Galaxy S4 Rumor Roundup: Everything We Know About The Handset Before It's Unveiled

The much-anticipated Samsung Galaxy S4 will finally be revealed tonight, but here's what we know (or think we know) about its features so far.

Processor
Latest rumors from Bloomberg say there will be two different versions. "The U.S. version will use Qualcomm Inc.'s quad-core chip, giving the phone more processing power to handle multiple tasks at the same time, they said. In other markets, it will rely on Samsung's 'octacore' eight-core chip, the people said."

The eight-core chip is Samsung's Exynos 5 Octa processor, developed in-house and said to be extremely powerful, despite some initial power supply issues. The Qualcomm Snapdragon 600 is a more conventional processor -- considered a stable workhorse to the Octa's thoroughbred.

Display
Phandroid reported the S IV will have an eco-friendly (and battery-friendly) 4.99-inch Full HD screen. "A new report says Samsung is utilizing a new AMOLED technology called Green PHOLED to produced a display that is 25 percent more battery efficient than previous Super AMOLED formats. The new display utilizes phosphorescence (hence the PHOLED name) over fluorescence to achieve its lower power draw, an element that could go a long way in adding to the Galaxy S4′s battery life."

Housing
Like the Galaxy S III before it, the S IV will be made of plastic, though leaked photos show what looks like a strip of aluminum down the sides.

Eye Scrolling
The New York Times reported the S IV would automatically scroll text when a user's eyes reached the bottom of the screen, but Bloomberg disputes that. "People familiar with the device disputed that idea this week, saying that eye scrolling won't be in the Galaxy S4, though it may appear in future versions of the phone."

Eye Pause
A video out today shows what looks like an S IV pausing videos when a user looks away.

Storage
The Galaxy S IV will likely come with three internal storage options: 16, 32 and 64 GB. Expect an SD slot for more expandability.

Colors
Initial reports said the S IV would only be available in black or white, but the annoying "Jeremy" ads seem to indicate it comes in the kid's "favorite" color, so it's likely there are several options.

We'll find out tonight. Check back here for live streaming of the launch event in Times Square at 7:00 p.m. EDT.