iPod Touch 4G Specification

Display

3.5-inch (diagonal) widescreen Multi-Touch display
960×640-pixel resolution at 326 pixels per inch

Graphics look incredible on 960×640 Retina Display. Which means games are even more immersive on the highest-resolution iPod Touch screen even made.

Processor

Apple A4 Processor

The A4 chip – the same technology as of iPas and iPhone 4 helps giving a gaming experience like no other. It also makes iPod Touch more powerful and more power efficient.

Sensors

Three-axis gyro
Accelerometer
Ambient light sensor

The new, built-in, 3-axis gyroscope on iPod Touch gives you fantastic pitch, roll and yaw. Rotation around gravity and extremely precise position information.

Capacity

8GB, 32GB or 64GB flash drive

Size and weight

Height: 4.4 inches (111.0 mm)
Width: 2.3 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 service
Nike + iPod support built in

Cameras, photos, and video

Video recording, HD (720p) up to 30 frames per second with audio
still photos (960 x 720) with back camera 0.7MP
VGA-quality photos and video up to 30 frames per second with the front camera
Tap to control exposure for video or stills
Photo and video geo tagging over Wi-Fi

Battery and power

Built-in rechargeable lithium-ion battery
Playback time
- 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 and 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 Dock Connector to VGA Adapter; 576p and 480p with Apple Component AV Cable; 576i and 480i with Apple Composite AV Cable (cables sold separately)