iFixit have made it their business to teardown important new pieces of technology, and they’ve stripped the iPhone 4 to its constituent parts. So, what lurks beneath that hull of glass and metal?
- It’s powered by a 3.7V 1420 mAh Li-Polymer battery, which appears to be pretty easy to replace
- It packs 512MB of RAM
- The phone is warmer on the right side than on the left, due to logic board placement
- There’s an audio chamber which “aids in clarifying sounds leaving the iPhone, including calls via speakerphone as well as music played through the speaker inside this housing”
- The frame houses the UMTS, GSM, GPS, Wi-Fi, and Bluetooth antennae
- It uses a 1 GHz ARM Cortex A8 processor
- The gyroscope is a model not currently available on the commercial market, an ST Micro L3G4200D
- “Unfortunately, the LCD panel is very securely glued to the glass and digitizer. It appears that if you break the glass, you’ll have to replace the glass, digitizer, and LCD as a single assembly.”
There’s plenty more technical information at the link, if you’re interested.

These improvements are excellent! Very interesting post.