• Operating System : ios 5
• Display : 3.4 Inch Multi Touch Screen
• Resolution : 960 x 640 px
• Height : 4,4 Inches
• Width : 2.3 inches
• Bluetooth : 2.1 
• Battery : Built-In Lithium-Ion
• Audio PlayBack Time : 48 Hours
• Video PlayBack Time : 7.5 hours
• Camera : One Front and other Rear
• Video Recording : HD recording 
• Memory :  64 GB

Input and Output
  • 30-pin dock connector
  • 3.5-mm stereo headphone minijack
  • Built-in speaker
  • Microphone
Battery
Apple iPod Touch 4G battery performs amazingly with its 48 hours audio play and 7.5 hours video playback, where old iPod Touch battery had only 30 hours of audio playback. Well, the battery life completely depends on your usage. Switching off Bluetooth and Wi-Fi, setting a lowering screen brightness makes battery lasts longer. 

Retina Display
Apple iPod Touch 4G has a great display and this is the best display ever by Apple. This Retina Display makes text and graphics look sharp and smooth. iPod Touch 4G has 4 times better display than previous iPod's. This display includes an ambient light sensor and LED backlighting which automatically adjusts viewing and brightness of the screen for better view.

FaceTime
FaceTime is one of the most amazing features Apple has launched. You can make unlimited video calls freely to your friend who has an iPad or iPhone or Mac or any other Apple Device with Wi-Fi. Talk to them for hours and pay nothing. Create or use your existing Apple ID and password and find your friends entry and request for a Video call. When your friends accept, you are Done !! Have Face-To-Face chats for long hours, see what your friends are doing and many more. iPod Touch 4G has 2 built-in cameras, one front, and another rear. you can use both camera's for FaceTime and also for capturing beautiful images. Take pictures and share it with your friends with just one tap. 

Airplay
Airplay is an amazing app which lets you share everything or anything on your iPod Touch to Apple TV.  you can watch movies, videos, images on your Apple TV with the help of AirPlay. All you need is a Wi-Fi connection and open the Airplay app, and stream all the stuff on your Ipod Touch to your Large HDTV.