Apple iPhone 3GS is the third generation iPhone. The iPhone 3GS features a capacitive touchscreen with a pixel density of 163 ppi on a 3.5-inch 480×320 display. The iPhone 3GS has an improved 3.2 megapixel camera with the features of auto-focus, auto white balance and auto macro and is capable of capturing VGA video. After constant use, some parts of the iPhone 3GS may become broken. Then ETrade Supply is a good online store for you to get the iPhone 3GS replacement parts.