I suppose the difference between the ARMR-Series and DQC-Series of Vikuiti? Easy said: ARMR is matte, has a "rough" surface and is anti-glare. It has some anti-scratch mechanism as well: the "rough" surface is somewhat "soft" so that small scratches go away after some more usage because the soft layer on top the film "melts" back together under the pressure of the finger or stylus applied while using the film. The DQC is the "normal" glare-type screen protector, no specials AFAIK...