A good strapless model for monitoring your heart rate, setting a target zone, lap memory and having an interval timer.

"Our robust ANT wireless heart rate monitor with softer, more comfortable chest strap and superior battery life eliminates cross-talk with other devices to reliably measure and send heart rate data to help you train in your zone."

"The F11? is an exerciser's dream come true. A revolutionary heart rate monitor that creates a workout program to tell you how much, how hard and how long to exercise to reach your goals. The Keeps U Fit? - Workout Program guides you to your personal goals. OwnIndex? will determine your fitness level…

Log every mile and every minute with FR60, a sleek fitness watch plus workout tool that tracks your time, heart rate and calories burned. When bundled with the OPTIONAL wireless foot pod, FR60 also tracks speed and distance, indoors or out. Then, FR60 wirelessly sends your workout data to your computer…

The 1st Strapless Monitor that Offers Continuous Readings.

Knowing your heart rate is important because if you are working out too hard, your activity can become counter productive and strain muscles. To achieve an effective workout, no matter what the aerobic activity, you must maintain your heart rate at a proper level for a minimum of 20 minutes. The proper…

"Combining all the necessary heart rate features with a new, slim design. It includes the popular Zone Pointer feature that helps keep you in your Target Zone, a stopwatch, convenient button free operation, and OwnCal? to track the calories you burn during your exercise."

The Polar S625X is like having a performance lab with you on every workout. All the heart rate, running and cycling data you will ever need is available right on your wrist. The S625X delivers continuous running speed without relying on where satellites are positioned. With the optional cycling and…

A strapless heart rate watch that monitors your heart rate during exercise or at any time during the day, and tracking your calories you will know how much to increase or decrease your activity level to achieve your health and fitness goals.

…workout data via voice prompts through the unique wrap-around headphones, eliminating the need to monitor a watch display during workouts. Features FM radio, workout time, calories burned, heart rate alert, set-up and instructions are all outputted verbally."

…easy-to-use features mean you have everything you need for safe, effective fitness training. See how the intensity of your workout affects your heart rate and improve fitness with an age-based intensity zone. Also keeps you on time with its watch.

…and waterproof T31 doesn?t have the benefit of coding for interference free transmission. However, its purpose remains the same: to transmit your heart rate to your wrist unit ECG (electrocardiogram) accurately.