Battery life
Storage/capacity
Display
1GB (240 songs) $79
4GB (1,000 songs) $149
8GB (2,000 songs) $199
80GB (20,000 songs) $249
160GB (40,000 songs) $349
Up to 22 hours of audio
Up to 5 hours of video
Up to 40 hours of audio
Up to 7 hours of video
Up to 24 hours of audio
Up to 5 hours of video
Up to 12 hours
2-inch color LCD
8GB (2,000 songs) $299
16GB (4,000 songs) $399
3.5-inch color multi-touch LCD
2.5-inch color LCD