Heart rate monitors are devices that measure your heart rate and provide real-time feedback from your body. Many people use heart rate monitors to optimize their workouts by determining training zones
A heart rate monitor comprise of a transmitter and a receiver. A strap with a transmitter worn around the chest. The receiver can be held in hand or worn on a wrist watch. The transmitter detects your heart rate during exercise and wirelessly sends the signal to the receiver for you to see data in real-time.
Polar H10 is the best heart rate monitor chest strap in this class. H10 has an updated design and a new algorithm that makes it a high quality and accurate heart rate monitor.
The H10 is now able to receive over-the-air (OTA) software updates. It has enough built-in memory to record your full training session, and has up to 400 hours of battery life.
Wahoo TICKR X
Apart from tracking your heart rate Wahoo TICKR X also has lot built in analytics related to running, calories burned etc. It is waterproof and sweat proof. It has lot more storage than Polar H10 and is able to store up to 16 hours of fitness data. TICKR X can connect with your smartphone.
Garmin HRM-Tri is a light heart rate sensor meant for triathletes. It is loaded with lot of analytics stuff. HRM Tri stores your heart rate data even when you are underwater. When running it reports 6 running dynamics metrics: cadence, stride length, ground contact time, ground contact time balance, vertical oscillation and vertical ratio.