Another year, another Galaxy S flagship Smartphone from Samsung. 2013's version of the crown jewel, the Galaxy S4, has just been officially announced at its Unpacked event. Mainly from Samsung’s proclivity to keep essential drivers close to their chest, the members would rather focus on winnable battles. Essentially, they’re saying, Nexus devices are the only ones that will continue to work flawlessly on AOSP-based software.
Dimension-wise, the GS 4 is 136.6 x 69.8 x 7.9mm (5.38 x 2.75 x 0.31 inch) and weighs 130g (4.59 ounces). The chassis itself is actually 0.8mm skinnier, 0.7mm thinner and 3g lighter than its predecessor, which is impressive given its larger screen size and 2,600mAh battery. It will launch in black and white hues, though Samsung plans to add more colors to its lineup as the year progresses. Head below the break as we continue to reveal what else you can expect from the newest Galaxy device.

Much like the HTC One, the Galaxy S 4 will also offer WiFi 802.11ac support on top of the usual a/b/g/n, and an IR blaster is included for remote control access using Samsung's WatchON service. NFC, Bluetooth 4.0 + LE are included, and here's one bit of good news for MHL fans: it's got MHL 2.0 and is able to use a standard MHL connector (unlike the GS 3, which required a Samsung-branded MHL adapter to work properly).
Moving on to the imaging details, the GS 4 sports a 13MP BSI camera with f/2.2 aperture and autofocus, while the front-facing camera gets a slight bump in res to 2MP. Samsung claims that neither camera features any shutter lag, so we'll be eager to test it out. But some of the most intriguing aspects of the camera are the new features: dual-video capture mode, which lets you record video on both cameras simultaneously (much like on the LG Optimus G Pro), and Dual Video Call mode, in which you can make video calls and show the caller what you're looking at. Additionally, Drama Shot utilizes burst mode to create animated GIFs, while Sound & Shot can record up to nine seconds of audio to accompany a still photo.

The GS 4 will also take advantage of the same "Smart" gesture features we saw on the GS 3, and gives you a few more to enjoy. Smart Pause stops the video you're watching if your eyes drift away. Smart Scroll will move the screen up or down when you tilt the phone and look at the screen at the same time. Air View lets you use your finger as an S Pen by giving you a preview of an email, calendar appointment, image gallery or video just by hovering your finger over it. There's also a Group Play feature that connects networks of GS 4 devices (provided they're in close proximity) to share music in a surround-sound mode or play games against each other.

No pricing has been set, and we've been told that the phone will be released globally starting at the end of April. It will come to all four national networks in the US as well as Cricket and US Cellular, and it will be picked up in other markets by Deutsche Telecom, EE, H3G, Orange, Telenor, Telia Sonera, Telefonica and Vodafone (we imagine this is only a short list of carriers for now, however). The full press release with more details is below, and we also have a full hands-on previewup for your viewing pleasure.
[Sources: http://www.engadget.com/2013/03/14/samsung-galaxy-s-4-officially-announced/]
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