The one thing that emphatically sets the Note II apart from even hulking phones is its stylus, which Samsung calls the “S Pen.”
Note II has Android OS, v4.1.1(Jelly Bean) which can be upgradable to v4.4.2(KitKat). It has Quad-core 1.6 GHz Cortex-A9 processor.
Note II has internal memory of 16/32/64 GB and 2 GB RAM You can insert micro S up to 64 GB. 8 MP, 3264 x 2448 pixels, autofocus camera with LED flash. SD card can be a reason that phone lag.