GPS: A-GPS, final glonass (3G/LTE model only).
It does however make up for this with a 10 hour talk time ability (8820 mAh battery) as well as active noise cancellation with dedicated mic and an html5 (Safari) browser.
There is also Bluetooth v4.0, A2DP, EDR as well as A-GPS and glonass but this is only available manual recipes with the 3G/LTE model so take note of this if it is an important feature.
The video abilities of the Air 2 is also very good being able to play at [email protected] as well as at a high frame rate of [email protected]
There is also Wi-Fi ipad air user guide 802.11 a/b/g/n/ac, dual-band as well as the standard hotspot option.