[* black] The iPhone 4's design is a dramatic departure from the [link|/Teardown/iPhone-1st-Generation-Teardown/599/#s3147|aluminum] and [link|/Teardown/iPhone-3G-Teardown/600/#s3195|plastic] drenched days that have plagued the iPhone in the past.
[* black] The rugged stainless steel bezels around the iPhone 4's perimeter double as both structural supports and antennas to boost reception.
[* black] Only time will tell if they absorb shock as poorly as the [link|/blog/2009/04/iphone-3g-front-panel-replacement/|iPhone 3GS].
[* red] Shameless plug:
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[* icon_reminder] Never been to iFixit before? We are a repair manual[http://www.ifixit.com/Guide|repair manual] for every thing. Our goal is to show everyone how to fix all their own stuff!
[* black] We also sell useful things, like [http://www.ifixit.com/Mac-Parts|Mac parts], [http://www.ifixit.com/iPad-Parts|iPad parts], and [http://www.ifixit.com/Tools|tools].