watchstrap vs wristband

watchstrap and wristband both are nouns.

Word	Noun	Adjective	Verb	Adverb
watchstrap	Yes	No	No	No
wristband	Yes	No	No	No

As nouns, watchstrap and wristband are synonyms defined as:

watchstrap and wristband: a band of cloth or leather or metal links attached to a wristwatch and wrapped around the wrist

Other synonyms of watchstrap include bracelet, watch bracelet, watchband.

watchstrap (noun)	wristband (noun)
a band of cloth or leather or metal links attached to a wristwatch and wrapped around the wrist	band consisting of a part of a sleeve that covers the wrist
	a band of cloth or leather or metal links attached to a wristwatch and wrapped around the wrist