BLU DIAMOND M Mobile features a 5.0″ (12.7 cm) display with a screen resolution of 480 x 854 pixels and runs on Android v6.0 (Marshmallow) operating system. The device is powered by Quad core, 1.3 GHz, Cortex A7 processor paired with 512 MB of RAM. As far as the battery is concerned it has 2200 mAh. Over that, as far as the rear camera is concerned this mobile has a 5 MP camera . Other sensors include Accelerometer. So, does it have a fingerprint sensor? No, it doesn’t. For graphical performance that can make games run smoothly, this phone has got a Mali-400 MP2 GPU. On board storage is at 4 GB with the option to expand the memory by Yes Up to 64 GB.