Share comparison:
start over

Apple released the 4th generation iPod in July of 2004 in 20GB and 40GB models. It brought the popular Click Wheel over from the iPod Mini and increased battery life to 12 hours of audio playback. In October of 2004 Apple released a U2 Special Edition.


  • Status: Discontinued
  • Availability date: Jul. 19, 2004
  • Price at launch: $299.00


  • Alias: iPod (U2 Edition 4th Generation)

Also Known As...

  • Length: 4.1 inches
  • Width: 2.4 inches
  • Thickness: 0.57 inches
  • Weight: 0.35 pounds
  • Color: White / Gray / Silver, Black / Red / Silver


  • Screen size (diagonal): 2 inches
  • Technology: LCD
  • Color depth: Black/white
  • Touchscreen type: None
  • Multitouch: No


  • Wi-Fi: No
  • Bluetooth: No


  • Internal size: 20 GB
  • External storage: No


  • Notable services supported: iTunes
  • Operating system: Proprietary
  • Latest OS version: 3.1.1
  • Audio codecs supported: WAV, AAC, MP3, AIFF, .AA (audible)


  • Video out: No
  • Headphone jack: 3.5mm
  • Data connection(s): iPod


  • Quoted audio time: 12 hr
  • Removable: No


Dock, FireWire iPod Dock Cable, USB iPod Dock Cable, Earbud Headphones, AC Adapter

Bundled accessories

Log In Sign Up

Log In Sign Up

Forgot password?

We'll email you a reset link.

If you signed up using a 3rd party account like Facebook or Twitter, please login with it instead.

Forgot password?

Try another email?

Almost done,

By becoming a registered user, you are also agreeing to our Terms and confirming that you have read our Privacy Policy.



Choose an available username to complete sign up.

In order to provide our users with a better overall experience, we ask for more information from Facebook when using it to login so that we can learn more about our audience and provide you with the best possible experience. We do not store specific user data and the sharing of it is not required to login with Facebook.