ankle bracelet vs anklet

ankle bracelet and anklet both are nouns.

Word	Noun	Adjective	Verb	Adverb
ankle bracelet	Yes	No	No	No
anklet	Yes	No	No	No

As nouns, ankle bracelet and anklet are synonyms defined as:

ankle bracelet (noun)	anklet (noun)
an ornament worn around the ankle	an ornament worn around the ankle
	a sock that reaches just above the ankle
	a shoe for a child or woman that has a strap around the ankle