The iPod touch Generation 6 had a 4-inch Retina display at 1136 x 640 (326 ppi). It used a rear 8-megapixel iSight camera capable of recording 1080p video, and a front 1.2-megapixel FaceTime camera capable of recording 720p video. Wireless connectivity included Bluetooth 4.1 and 802.11a/b/g/n/ac Wi-Fi.
Externally, the iPod touch Generation 6 is very similar to the Generation 5 model, but it is quite different inside. The Generation 6 uses a dual-core A8 processor, 1 GB RAM, and was available with storage of 16, 32, 64, or 128 GB.
Six different colors were available, including space gray (black glass front with dark gray aluminum back), gold (white glass front with gold aluminum back), silver (white glass front with silver aluminum back), hot pink (white glass front with bright pink aluminum back), blue (white glass front with blue aluminum back), and red (white glass front with red aluminum back). The red version was a (PRODUCT)RED offering.
This example is blue with 32 GB of storage.
Source: Everymac