The source, which leaked the teardown pictures onto Chinese site IT168, looks to be the same as the one that revealed some of the first full photos of the device, and the specs revealed there appear to match up. It's worth noting that Samsung has a history of providing different specifications for regions around the world, and the device pictured here is presumably destined solely for China. Either way, it'll only be a bit longer to get the official word from Samsung. Our liveblog begins at 7PM ET.
As expected, the S4 has got an onslaught of new hardware and software features. Here's a quick rundown:
Display: 5-inch, 1920 x 1080, with Gorilla Glass 3
Processor: 1.9 GHz quad-core processor OR 1.6 GHz Octa-Core processor (depending on the market)
Weight: 130 grams
Rear camera: 13 megapixels
Front camera: 2 megapixels
Storage: 16/32/64 GB internal, with a MicroSD slot for expansion
Wi-Fi: 802.11 a/b/g/n/ac
Sensors: Accelerometer, Barometer, Gesture, Geomagnetic, Gyro, NFC, Proximity, Temperature and Humidity, and RGB light.
Bluetooth: Version 4.0
Battery: 2,600 mAh
OS: Google Android 4.2.2 Jelly Bean
Drama Shot: Turns a string of photos into a timelapse.
Dual View: This lets S4 owners use both the front and rear cameras at the same time, which can also be used during video calls.
Group Play: Lets people share media between one another without Wi-Fi. Also syncs up music playback between devices.
Story Album: Pulls together photos you've taken and can be turned into photo albums.
S Health: Uses the S4's onboard sensors to track and estimate personal fitness.
S Translator: Translates voice or text within certain applications, and works offline.
S Voice Drive: Takes voice commands while driving, and turns up the size of text. Works over Bluetooth with Bluetooth-enabled cars.
Samsung Optical Reader: Scans business cards and QR codes for text.
Samsung WatchON: Uses the built-in IR to control other electronics like TVs and set top boxes.
Smart Pause: Pauses video playback when it detects that you're not looking. The same technology works for scrolling up and down on a Web page, or e-mail.
Along with the S4, Samsung also debuted a new version of its S View cover that includes a slit to show relevant data, even when the rest of the device is covered up.
The event brings to a close a major push by Samsung to tease the S4, which included television spots and tweets, including one that teased an image of the front of the device. Unofficially, a string of leaks showed off quite a bit more of the device in photos and videos of some of the new features in action.
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The Galaxy S4 appears to be making a run for the title of most-leaked device (other than the iPhone 5) in recent memory. Following multiple rumors and photos, a user has posed an entire teardown of what looks like a Chinese variant of Samsung's next Galaxy phone. The pictures appear to confirm a number of rumors — most notably, a picture of the processor shows the device is indeed powered by the company's new 8-core Exynos 5 Octa processor (model number 5410). There looks to be a 13-megapixel camera as well, and this particular variant has two SIM card slots — just like the Chinese variant of the Galaxy Note 2.