Size
    Height: 4.4 inches (111.0 mm)
    Width: 2.32 inches (58.9 mm)
    Depth: 0.28 inch (7.2 mm)
    Weight: 3.56 ounces (101 grams)

Wireless
    802.11b/g/n Wi-Fi (802.11n 2.4GHz only)
    Bluetooth 2.1 + EDR
    Maps-location based service4
    Nike+ support built in5
    
Display
    3.5-inch (diagonal) widescreen Multi-Touch display
    960-by-640-pixel resolution at 326 pixels per inch

Camera Photos
    Video recording, HD (720p) up to 30 frames per second with audio; still photos (960 by 720) with back

    camera VGA-quality photos and video up to 30 frames per second with front camera
    Tap to control exposure for video or stills
    Photo and video geotagging over Wi-Fi

Power & Battery
    Built-in rechargeable lithium-ion battery
    Music playback time: Up to 40 hours when fully charged
    Video playback time: Up to 7 hours when fully charged
    Charging times: Fast charge in about 2 hours (80% capacity), full charge in about 4 hours

Audio
    Frequency response: 20Hz to 20,000Hz
    Audio formats supported: AAC (8 to 320 Kbps), Protected AAC (from iTunes Store), HE-AAC, MP3 (8

   to 320 Kbps), MP3 VBR, Audible (formats 2, 3, 4, Audible Enhanced Audio, AAX, and AAX+), Apple   Lossless, AIFF, and WAV
    User-configurable maximum volume limit

TV & Video
    H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 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 per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
    Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format
    Support for 1024 by 768 pixels with Apple VGA Adapter; 576p and 480p with Apple Component AV Cable; 576i and 480i with Apple Composite AV Cable (cables sold separately)