Fourth Generation iPod touch - The 4th generation iPod touch inherited many of the features of the iPhone 4, significantly upgrading its visual capabilities and making it more powerful.
The major changes introduced with this model were the addition of Apple’s A4 processor (which also powers the iPhone 4 and the iPad), two cameras (including one user-facing) and support for FaceTime video chats, high-definition video recording, and the inclusion of the high-resolution Retina Display screen. It also includes a three-axis gyroscope for better gaming responsiveness.
As with previous models, the 4th generation touch its 3.5-inch touchscreen, Internet access over WiFi, iPod features, multiple sensors for gaming performance, and App Store support.
3.5-inch multitouch screen
Front-facing: records 720p high-definition video
4.4 x 2.3 x 0.28 inches
40 hours audio
7 hours video
Released: September 2010
Discontinued: The 8GB and 64GB models were discontinued in Oct. 2012 with the introduction of the 5th generation touch, though the 16GB and 32GB models continued to be sold.