Loading... Please wait...So why buy a dedicated interval timer when you could buy a sports watch that does the same thing and more? One reason is cost. An interval timer feature on a sports watch falls under the more advanced and sophisticated features of a sports watch, which commonly means you have to pay a lot more money. The Interval Timer sells for just over 20 euro, offers a sophisticated interval training timer system as well as a stopwatch. Expect to pay around double for a sports watch with a basic interval timer feature that has fewer configuration options than the dedicated Interval Timer, which has been carefully designed for the sole purpose of structured interval training.