iPod Nano:
Storage - 8GB/16GB
Songs - 2,000/4,000
Navigation - Touch Sensitive Click Whell
Price - $169/$219
Colour Range - 9 types
Battery Life - 24hrs music/4hrs video
Screen - 2-inch (diagonal) color LCD with LED backlight
Ports - Dock connector, stereo minijack
Connectivity - USB through dock connector; component and composite video through dock connector (with AV cables, sold separately); audio through headphone jack
Wireless (Radio/Internet)- none
Charge time - 3 hours
Audio Support - AAC (16 to 320 Kbps), Protected AAC (from iTunes Store), MP3 (16 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, and 4), Apple Lossless, WAV, and AIFF
Photo Support - Syncs iPod-viewable photos in JPEG, BMP, GIF, TIFF, PSD (Mac only), and PNG formats
Video Support - H.264 video, up to 1.5 Mbps, 640 by 480 pixels, 30 frames per second, Low-Complexity version of the H.264 Baseline Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; H.264 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Baseline Profile up to Level 3.0 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
Size - 3.6 x 1.5 x 0.24 inches
(90.7 x 38.7 x 6.2 mm)
Weight - 1.3 ounces (36.8 grams)
Included in Box - Earphones, USB cable, dock adapter
* Note - Audio,Video,Photo file format transforms when put in iPod meaning format changes and increases in size for the reasons apple says, "better quality"
Sony Walkman:
* there are 7 different portable players, I will compare the iPod with Sony's closest kind, the Walkman NWZ
Storage - 4GB/8GB/16GB
Songs - 2,000/4,000/8,000 (files compressed to fit more songs ,quality is the same)
Navigation - buttons
Price - $120,/$150/$200
Colour Range - 4 types
Battery life - 40hrs (music/radio/senseme)/10hrs video
Display - 2 inch
Inputs/Outputs - Headphone Type: Earbud
Headphone Output(s): 1 (stereo mini jack)
USB Port(s):1 (22 pin to high-speed USB 2.0 connector6)
Wireless data (radio) - Frequency Range: 87.5 to 108.0 MHz
Antenna: Headphone cord antenna
Charge time - 3 hours full - 5 minute charge for 45 minute music play (minimum power mode)
Audio Support - Formats Supported:
MP3: Bit rate: 32 to 320kbps; Sampling frequency: 32, 44.1, 48kHz
WMA: Bit rate: 32 to 192kbps; Sampling frequency: 44.1kHz * Compatible with WM-DRM 10
AAC-LC2: Bit rate: 16 to 320kbps3; Sampling frequency: 8,11.025, 12, 16, 22.05, 24, 32, 44.1, 48kHz
Linear PCM: Bit rate: 1411kbps; Sampling frequency: 44.1kHz
Frequency Response: 20 - 20,000Hz (when playing back data file, single signal measurement)
Output Power: 5+5mW
Clear Audio Technologies: DSEE(On/Off) / Clear Stereo(On/Off) / Clear Bass / EX Headphone Simulated Surround: VPT:
Studio/Live/Club/Arena/Matrix/Karaoke
5 Band equalizer: (Heavy/Pop/Jazz/Unique/Custom 1/Custom 2)
Dynamic Normalizer: (On/Off)
Podcast audio support: Yes5
Video Support-Frame rate: Up to 30 fps
Resolution: Up to QVGA?320 x 240?
Format Supported: MPEG 4, M4V, WMV (Windows Media Video 9)
Playback: Mode: Repeat (On/Off), Continuous Playback (On/Off)
Podcast video support: Yes5
Photo Support - Photo Playback: Yes, Compatible with DCF 2.0/Exif 2.2 file format4
JPEG Playback: Normal/Slide Show/Slide Show Repeat
Slide Show Interval: Short/Normal/Long Compatible with DCF 2.0/Exif 2.2 file format4
size and weight - Dimensions (Approx.): W42.9 x H89.5 x D7.5 mm
Weight (Approx.): 46g
accessories supplied - free case protector, CD-ROM( "Windows Media Player 11", "Media Manager for Walkman", "Content Transfer", "Operation Guide")
MDREX082 (105cm) Headphones
Ear Buds(S/M/L)
Quick Start Guide
USB cable
Attachment
Note: There are also walkman phones which come the price of at least $400. They come with games but you can't watch videos. Also note that walkman media players don't have games because Sony already has the PSP plus game playing really kills batteries.
You're welcome.