It's AHRS (Altitude Heading Reference System), which uses gyros, accelerometers and magnetic sensor units, that enables the S92A to accurately hold position in the hover.
AHRS will reference GPS for it's position, GPS does not ensure an accurate hover but merely advises the aircraft it is where it thinks it is.
AHRS allows the aircraft to hold a position (PHLD) or fly lateral and longitudinal references (VHLD) to maintain position with a vessel or other drifting target.
AHRS is also responsible for enabling the SAR AFCS modes for transition down functions.
Not just shiny and faster.