gimmick vs device

gimmick and device both are nouns.

Word	Noun	Adjective	Verb	Adverb
gimmick	Yes	No	No	No
device	Yes	No	No	No

As nouns, gimmick and device are synonyms defined as:

Other synonyms of gimmick include twist.

gimmick (noun)	device (noun)
any clever maneuver	any clever maneuver
something unspecified whose name is either forgotten or not known	an instrumentality invented for a particular purpose
a drawback or difficulty that is not readily evident	an emblematic design (especially in heraldry)
	any ornamental pattern or design (as in embroidery)
	something in an artistic work designed to achieve a particular effect