The first heart rate monitor which makes use of Bluetooth is being developed by Dayton Industrial.
The first heart rate monitor which makes use of Bluetooth is being developed by Dayton Industrial. This is a low energy heart-rate chest belt which employs the Nordic µBlue nRF8001 Bluetooth 4.0 chip and promises to be a forerunner of more such smartphone-based health and fitness monitoring apps.
It is possible to pair this device with any Bluetooth 4.0 equipped smartphone. The low energy heart-rate belt is designed to run for up to 1.5 years if used for about one hour per day from a CR2032 coin cell.
Source-Medindia