The Xiaomi Mi A3 mobile features a 6.08" (15.44 cm) display with a screen resolution of 720 x 1560 pixels and runs on Android v9.0 (Pie) operating system. The device is powered by Octa core (2 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260) processor paired with 4 GB of RAM. As far as the battery is concerned it has 4030 mAh. Over that, as far as the rear camera is concerned this mobile has a 48MP + 8MP + 2MP camera Exmor-RS CMOS Sensor supporting a resolution of 8000 x 6000 Pixels and the front snapper is powered by a Exmor-RS CMOS Sensor. Other sensors include Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope. So, does it have a fingerprint sensor? Yes, it does. For graphical performance that can make games run smoothly, this phone has got a Adreno 610 GPU. On board storage is at 128 GB with the option to expand the memory by Yes Up to 256 GB. Design is one of the most important factors when it comes to mobiles. This phone is 8.4 mm slim and weighs 173.8 grams.