Reviewers say the Timex Ironman Race Trainer is a great value for those who want a heart-rate monitor that covers all the basics. The included chest strap provides a continuous reading, and the monitor tracks calories… burned in addition to real-time and average heart rate. Other features include target workout zones, lap and split timers, and a 10-workout history. Reviewers say the Timex Ironman Race Trainer provides plenty of features without unnecessary bells and whistles. The heart-rate readings are accurate, according to reviews, and the chest strap is comfortable to wear. However, some reviewers say the setup process is overly complicated. We also saw a report that the display can be hard to read when mounted on a bicycle. The Timex Ironman Race Trainer comes in full- and mid-size versions to accommodate men and women.