Difference between Watchband and Watchstrap

What is the difference between Watchband and Watchstrap?

Watchband as a noun is a band of leather, metal etc that fastens a wristwatch to the wrist; a watchstrap while Watchstrap as a noun is a strap of leather, metal etc that holds a wristwatch in place; a watchband

We hope you now know whether to use Watchband or Watchstrap in your sentence.