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Polar H7 Bluetooth Smart Heart Rate Sensor

... In addition to low energy Bluetooth smart technology, the H7 heart rate sensor connects with Polar training computers using 5 kHz transmission and Polar compatible gym equipment.The Polar H7 heart rate sensor provides live heart rate on your mobile training application, so you can make the most of every session.....The soft fabric chest strap seamlessly adapts to your body shape, bringing full freedom of movement to your training.
Polar H7 Bluetooth Smart Heart Rate Sensor
* User replaceable battery.
* Includes a soft and comfortable hand washable fabric chest strap.
* Long transmission range (~10m).
* Uses Bluetooth smart technology and coded 5 kHz transmission, providing accurate heart rate to any Bluetooth smart ready device and compatible Polar training computers.
* Makes it quick and easy to add heart rate to smartphones such as the Motorola Razr Droid and iPhone 4S...













































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Works great with iPhone 4s - no dongle needed! ..I burned one battery before I figured out what was going on...UPDATE: Bluetooth connection remains after you are done with your work-out.
..Once I managed to hack my way into the package (I hate those plastic packages that everything comes in now) I had it synced up and working with Strava on a iPhone 4s in just a few seconds. After stopping the recording of Strava or Endomondo, the Bluetooth connection remains b/t your phone (iPhone 4s in my case) and the HRM. The strap connector is a small metal hook that fastens into an elastic loop... Used it while cycling with iPhone in back jersey pocket - not problem staying connected and supplying the app with heart rate info during the ride.
.. Also worked fine with Endomondo app. When I'm done now I try to remember to actually kill the app...The native support, no dongle or anything else to plug into the phone, makes this really nice.
......I've got about 150 miles in with this strap - no issues with connectivity, battery life or comf...