Usual price seems to be £55-65, stumbled upon this site where their price is £54.95 however a 10% online sale at the minute so that knocks £5.50 off. 3.03% TCB as well so potentially £47.90 - free postage and packing.
This only works with iphone 4s & motorola droid as it uses the new low power bluetooth spec.
Polar H7 heart rate sensor gives you live heart rate on your mobile training application, to make the most of every session. In addition to low energy Bluetooth smart technology, the H7 heart rate sensor uses coded 5 kHz transmission to connect with the majority of Polar training computers on the market and with compatible gym equipment. The soft textile chest strap seamlessly adapts to your body shape, bringing full freedom of movement to your training.
Uses Bluetooth smart technology and coded 5 kHz transmission, providing ECG-accurate heart rate to any Bluetooth smart ready device and compatible Polar training computers
Makes it quick and easy to add heart rate to your smartphone
Long transmission range (~10m)
User replaceable battery
Includes a soft and comfortable hand washable textile chest strap
Sub-total £: 54.95
Online Sale - Save an Extra 10% (£54.95 @ 10%) £: -5.50
Carriage to United Kingdom via Royal Mail Standard 1-3 days £: 0.00
Total £: 49.45