For a f/2.4 lens, it's not bad. Waiting for a day a larger sensor gets inserted into a mobile phone and seriously compete with compact digital cameras which has dominated the 'low end' section for the past 15 years!!
A 2011 8 megapixel camera! The key components of a camera: the sensor, shutter, aperture ring, and a whole bunch of electronics. Here the Iphone 4S was ripped apart by the folks at Ifixit, with detail images of the camera taken by the folks at Chipworks.
The crux of the 8 megapixel, 1080 30p full HD recording, Iphone 4S! The experts at Chipworks.com used an Infrared microscope to peer through the layers of Silicon to reveal the heart of the camera, the camera itself, with clear markings 'Sony'!
A X-ray image of the side view of the Iphone 4S camera, also great work by Chipworks.com! Look at the multiple layers of optics! (low contrast layers). A fascinating insight into a world usually swept aside.
- Source: www.chipworks.com / www.ifixit.com

For a f/2.4 lens, it's not bad. Waiting for a day a larger sensor gets inserted into a mobile phone and seriously compete with compact digital cameras which has dominated the 'low end' section for the past 15 years!!