iPhone 4 unveiled: gets HD video, LED flash, dual cameras | Ars Technica
iPhone 4s - Wikipedia
Apple Extends 'iSight' Name to iPhone 4S and iPhone 4 Rear Cameras - MacRumors
First Look: iPhone 4 and FaceTime - YouTube
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Apple iPhone 4S | PPT
iPhone 5 camera not much better than 4S cam, our tests show
Sony Likely to Provide Front-Facing Camera Sensors for Future iPhone - MacRumors
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Apple iPhone 4s specs - PhoneArena
Apple iPhone 4S Review
iPhone 4s Review: Features, Specifications, and Pricing | Macworld
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Apple iPhone 5s (Verizon Wireless) Review | PCMag
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Apple Announces iPhone 4S: A5, 8 MP Camera, 1080p Video Recording - Available October 14th - MacStories
New iPhone 4 Adds a Camera for Video Chats - The New York Times
Apple's iPhone 4S coming Oct. 14 with Siri voice control and 4G-like speeds | AppleInsider
