Microphones and Speakers
The iPad Air features two sets of speakers for stereo sound in portrait and landscape mode. Dual microphones include calls, video recording, and audio recording.
Sensors
Along with a Touch ID sensor, the iPad Air features a three-axis gyro, an accelerometer, a barometer, and an ambient light sensor for True Tone and other features.
iPad Air 4 support for Wifi 6 and Bluetooth 5.0
The iPad Air 4 supports WiFi 6 known as 802.11ax.
Gigabit LTE
Gigabit-class LTE becomes available in the cellular iPad Air models and the LTE modem chip is similar to the chip included in the iPad Pro.
Support for bands 1, 2, 3, 4, 5, 7, 8, 11, 12, 13, 14, 17, 18, 19, 20, 21, 25, 26, 29, 30, 34, 38, 39, 40, 41, 46, 48, 66, and 71 include.
2 SIM Support:
The two SIM options in the iPad Air: a physical nano-SIM slot at the side of the device and an eSIM, or digital SIM, which design to work without the need for a physical SIM card.
The physical nano-SIM slot supports the Apple SIM that design to let users swap between carriers without a hassle.
Storage Space
Apple sells the iPad Air with 64GB of storage or 256GB of storage, with no middle tier 128GB storage option available.