Wi-Fi dual channel (2.4GHz and 5GHz); HT80 with MIMO, Bluetooth 4.2 technology -- SIM Card Nano‑SIM -- Sensors Touch ID Three-axis gyro Accelerometer Barometer Ambient light sensor -- Touch ID Unlock iPad Secure personal data within apps Make purchases from the iTunes Store and App Store -- Built-in 27.5-watt-hour rechargeable lithium-polymer battery Operating System iOS 9 With an all-new design and all-new features, iOS 9 is the world's most advanced mobile OS. In its most advanced form.
