- IntroducedFully laminated anti-reflective Retina display
Fuses the cover glass, touch sensor, and LCD panel into a single layer with an anti-reflective coating, eliminating the internal air gap and reducing glare/reflections by 56%.
- IntroducedTouch ID fingerprint sensor
Integrated into the Home button, enabling biometric device unlocking and in-app Apple Pay authentication.
- IntroducedApple A8X chip
Custom 64-bit architecture featuring a triple-core CPU and 8-core PowerVR GPU, accompanied by 2GB of LPDDR3 RAM (the first iOS device to ship with 2GB of RAM, laying the memory foundation for Split View).
- IntroducedApple M8 motion coprocessor
Continuously tracks motion data from the accelerometer, gyroscope, compass, and a newly integrated barometer.
- Introduced8MP iSight rear camera
Upgraded from 5MP with an f/2.4 aperture, 1080p Full HD video recording, 120fps Slo-mo video, burst mode, and time-lapse video.
- IntroducedApple SIM support
Cellular models shipped with Apple SIM in select countries, allowing users to choose short-term cellular data plans directly from device settings.
- IntroducedGold color finish
Added alongside Silver and Space Gray.
- Introduced802.11ac Wi-Fi with MIMO
Dual-band support providing theoretical wireless throughput up to 866 Mbps.
- ChangedEnclosure thickness and weight
Reduced from 7.5mm to 6.1mm (18% thinner than the original iPad Air), reducing weight from 469g / 478g to 437g (Wi-Fi) / 444g (Cellular).
- ChangedStorage tier structure
16GB, 64GB, and 128GB replaced the original 16/32/64/128 structure at launch (32GB reintroduced later in September 2016).
- RetiredHardware rotation lock / mute switch
Removed from the right side of the aluminum chassis to achieve the 6.1mm profile.
- Retained9.7-inch LED-backlit Retina display with 2048-by-1536 resolution at 264 ppi
9.7-inch LED-backlit Retina display with 2048-by-1536 resolution at 264 ppi.
- RetainedLightning connector for charging and wired data transfer
Lightning connector for charging and wired data transfer.
- Retained3.5mm stereo headphone jack
3.5mm stereo headphone jack.
- Retained10-hour battery life rating via a 27.3-watt-hour rechargeable lithium-polymer battery
10-hour battery life rating via a 27.3-watt-hour rechargeable lithium-polymer battery.