The Apple iPhone 9 mobile features a 5.2" (13.21 cm) display with a screen resolution of 750 x 1334 pixels and runs on iOS v12 operating system. The device is powered by Octa core processor paired with 4 GB of RAM. As far as the battery is concerned it has 2550 mAh. Over that, as far as the rear camera is concerned this mobile has a 12 MP camera . Other sensors include Light sensor, Proximity sensor, Accelerometer, Barometer, Compass, Gyroscope. So, does it have a fingerprint sensor? Yes, it does. On board storage is at 64 GB with the option to expand the memory by No.