Sigma iD GOSigma iD GO
For people new to monitoring heart rate during exercise, the iD.GO is the perfect tool.
It is very easy to use and provides you with ECG accurate heart rate data. Striped back, the iD.GO has just 1 button that offers simple, uncomplicated functionality, allowing you to toggle between time, stopwatch and heart rate monitoring with ease.
If the iD.GO is not in the training mode, it shows the time of day and a stopwatch. As soon as the chest strap (included) is connected, time of day is replaced by the current heart rate.
Waterproof up to a depth of one meter for about 30 minutes, the average battery life is 2 years.