![]() ![]() The iPhone 3GS also features a glossy plastic backing with tapered edges and metal buttons. The phone's digital compass points in the direction of the magnetic field, which can come in handy when you need to find your way in an unfamiliar place. In addition, the 3GS has a built-in magnetometer, which can measure the strength and direction of the magnetic field. The iPhone 3GS features a three-axis accelerometer, a digital compass, a proximity sensor, and an ambient light sensor. What kind of sensors and extras are in the 3GS? The screen contains an oleophobic coating that is resistant to dirt and fingerprint smudges. You can also change the orientation of the screen by rotating the phone on its side. The smartphone is controlled entirely through swipe, tap, and pinch gestures on the screen. The iPhone 3GS features a 3.5-inch LCD capacitive touch-screen display at a resolution of 480 x 320 pixels. What kind of display is built into the iPhone 3GS? This phone measures 4.5 inches by 2.4 inches, and it weighs a little less than 5 ounces. The voice-control feature allows you to control the phone purely through voice commands by speaking into the microphone. It can connect using either tri-band or quad-band wireless connections. In addition to being capable of Wi-Fi connectivity, the iPhone 3GS also supports Bluetooth 2.1. The camera can also capture video at 30 frames per second. The rear-facing 3MP camera, featuring an improved resolution, is capable of photo and video geotagging, 5x digital zoom, auto-exposure, and both an auto-focus and tap-to-focus feature. The iPhone 3GS contains both a 32-bit 600MHz processor and 256MB of RAM. It also runs on the Apple iOS operating system. ![]() ![]() ![]() First released on June 8, 2009, this smartphone improves on the basic iPhone design. The Apple iPhone 3GS is the third generation of Apple's iPhone series and a successor to the iPhone 3G. ![]()
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