iFixit

Hiding in the corner is the iPhone 4's vibrator motor, which...well...vibrates.

Removing one of the many connectors on the logic board.

In our brief usage, we did notice that the phone is considerably warmer on the right side. This makes sense, as the logic board is located entirely along the right side of the phone.

Behold a beauty in the iPhone 4: a rear-facing 5 MP camera with 720p video at 30 FPS, tap to focus feature, and LED flash.

This is a huge upgrade from the 3.2 MP camera found in the iPhone 3GS.

Removing the lower antenna/speaker enclosure from the bottom of the phone.

The improved audio chamber aids in clarifying sounds leaving the iPhone, including calls via speakerphone as well as music played through the speaker inside this housing.

Apple hasn't made taking the iPhone 4 apart very hard so far: no 5-point Torx bits or fragile clips to be seen.

Removing the logic board.

The unusual shape and small size of the logic board shows just how costly real estate is inside this powerhouse of a phone.

Apple has integrated the UMTS, GSM, GPS, Wi-Fi, and Bluetooth antennas into the stainless steel inner frame.

The dual purpose stainless steel inner frame/antenna assembly addresses possibly the two biggest flaws concerning previous iterations of the iPhone: continuous dropped calls and lack of reception.

Apple has gone a step further and tuned the phone to utilize whichever network band is less congested or has the least interference for the best signal quality, regardless of the actual signal strength. Early reports suggest this feature, while buggy in its early stages, will greatly improve the phone's reliability on AT&T's fragile network.

With the EMI shields off, we can get a look at what makes this beast roar.

Lurking deep within the phone, the A4 processor, manufactured by Samsung, is the centralized unit that provides the iPhone 4 with the much needed computing power.

Replacing the Samsung S5PC100 ARM A8 600 MHz CPU used in the 3GS, the new iPhone uses the ARM Cortex A8 core, much like its bigger sibling, the iPad. The iPad's A4 is clocked at 1 Ghz.

The new Samsung Wave S8500 smartphone uses the same Cortex A8 core!

Just to the left of the A4 package, the AGD1 is the new 3 axis gyroscope that we believe is designed and manufactured by ST Micro for Apple. The package marks on this device do not appear to be the currently available commercial part, L3G4200D. The commercial version of this gyroscope is yet to be released — Apple got first dibs on it.

On the top of logic board:

• Skyworks SKY77542 Tx–Rx iPAC™ FEM for Dual-Band GSM/GPRS: 880–915 MHz and 1710–1785 MHz bands.
• Skyworks SKY77541 GSM/GRPS Front End Module
• STMicro STM33DH 3-axis accelerometer
• TriQuint TQM676091
• 338S0626