would it pick up any polar strap? i've got one spare from the monitor that died.
Polar for Nokia is a totally different strap - it talks using bluetooth (which phones speak), rather than the polar Wearlink protocol which is different (phones can't speak it).
Standard polar isn't bluetooth, so won't talk to a phone.
I imagine the 'heart rate monitor' app talked about in the first post is:
http://www.n97i.com/nokia-5800-applications/nokia-5800-applications-review-heart-rate-monitor-2941
which doesn't use a strap, you have to listen / feel for your pulse, then tap the screen in time with it.
I'd love to be proven wrong though - if anyone has a source of bluetooth heart rate straps that aren't dead expensive, please post detail up!
Joe