Display: 9.7” Retina Display. LED backlit glossy IPS widescreen with multi-touch. 2048 x 1536 resolution (264 ppi). Fingerprint resistant coating. Supports accelerometer and has ambient light sensor and 3-axis gyroscopic sensor.
Processor: 1.2GHz Apple A6X dual core CPU with quad core GPU. 1 gig RAM.
Network: Wi-Fi model: Wi-Fi 802.11a/b/g/n; AT&T Wi-Fi + LTE model: UMTS/HSPA+ 850/900/1900/2100MHz, LTE 700MHz, GSM/EDGE quad-band, data only. Verizon Wireless and Sprint models: CDMA dual band digital EV-DO Rev. A 3G and 4G LTE. All models have Bluetooth 4.0 and Apple Lightning connector to USB.
GPS: Cellular models have GPS as well as digital compass. WiFi models use WiFi-based location triangulation.
Cameras: 1.2MP FaceTime front camera and 5MP rear iSight camera. Back camera can record up to 1080p 30fps video with video stabilization. Both have Backside Illuminated Sensors, face detection and geotagging.
Storage: 16GB, 32GB, or 64GB internal flash storage.
Audio: Built-in mic and speaker, 3.5mm stereo headphone jack. Audio formats supported: HE-AAC (V1), 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, AIFF, and WAV.
Video: Video mirroring and video out support: Up to 1080p with Apple Digital AV Adapter or Apple VGA Adapter (cables sold separately). 1080p video streaming to 3rd generation Apple TV, mirroring up to 720p. Video formats supported: 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.
Size: 9.50 x 7.31 x 0.37 inches. Weight: 1.44 pounds (Wi-Fi model), 1.46 pounds (Wi-Fi + 4G model).
Battery: Rechargeable 42.5 watt-hour rechargeable lithium-polymer battery. Not user replaceable. Claimed usage time: Up to 10 hours of surfing the web on Wi-Fi, watching video, or listening to music; Up to 9 hours of surfing the web using 4G data network.
Expansion: No storage card slot.