wristband

/ˈɹɪs(t)ˌbænd/noun
Elementary
1

The cuff of a sleeve that wraps around the wrist.

2

A strip of material worn around the wrist, e.g. to absorb perspiration, especially in sports.

3

A decorative band or bracelet that encircles the wearer's wrist.

4

A band that supports a wristwatch.

5

A cord worn around the wrist, used to hold a small object such as a knife: a lanyard