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iFixit teardown reveals more about Samsung Galaxy S4

Samsung's new Galaxy S4 has a stunning HD 1,920-by-1,080 resolution display, a powerful quad-core Snapdragon 600 processor clocking at 1.9 GHz, and to top it all off, it just received an "interstellar" repairablility score of 8 out of 10 from iFixit.

The much-hyped new addition to Samsung's Galaxy lineup has "very similar, if not identical" internal construction to its predecessor, the Galaxy S3, according to the teardown site.

"[W]hich is a good thing, since the S3 is a pretty fixable device," iFixit said, adding that the Galaxy S4 features an easily replaceable battery and a "straightforward disassembly."

The site also highlighted several components in the Galaxy S4 that give this smartphone extra oomph. There's the Synaptics S5000B touch-screen controller, which "is responsible for the S 4's super-sensitive touch screen, which even works with gloves," according to iFixit. Also called out was the smartphone's 13-megapixel rear-facing camera with an LED flash and back-illuminated sensor, giving Galaxy S4 owners the "ability to record full 1080p HD video at 30 frames-per-second.

Samsung's new top-of-the-line smartphone has something few similar products on the market possess—motion capture capabilities that allow users to manipulate the phone's display without even touching it.

"The placement of the IR sensors on either side of the earpiece speaker explains how Samsung's new Air View/Air Gesture feature operates. By comparing IR light reflected from your hand into each of the sensors, the phone can track sideways motion as you gesture without touching the screen," the site reported.

Once the iFixit teardown specialists cracked open the Galaxy S4, here are the integrated circuits they found on the device's motherboard:

  • Snapdragon 600 APQ8064T 1.9 GHz Quad-Core CPU
  • Qualcomm MDM9215M 4G GSM/UMTS/LTE modem
  • Qualcomm PM8917 power management
  • Samsung K3QF2F200E 2 GB LPDDR3 RAM
  • Qualcomm WCD9310 audio codec
  • Skyworks 77619 Power Amplifier Module for Quad-Band GSM/EDGE
  • Qualcomm WTR1605L Seven-Band 4G LTE chip
  • Broadcom 20794S1A standalone NFC chip
  • Maxim MAX77803 microcontroller
  • Silicon Image 8240BO MHL 2.0 transmitter
  • Qualcomm PM8821 Power Management

Meanwhile, this week pitted the Galaxy S4's display against the displays of its predecessor and Apple's iPhone 5. The site called the Galaxy S 4's OLED display, with more than twice as many pixels as the Galaxy S3's, "a major enhancement and improvement" and a "good reason to consider trading up."

The battle with the iPhone 5 was much closer, according to

"The iPhone 5 is significantly brighter than the Galaxy S4, particularly for screens with mostly peak white backgrounds. Its colour calibration is a bit better, although the Galaxy S4 has a more accurate White. The Galaxy S4 has a much bigger screen, higher resolution, higher PPI, much darker blacks, and better screen uniformity than the iPhone 5," the site decided, calling the battle between the two handsets "a tie."