Are chest straps that come with heart rate monitor watches interoperable with other devices / a different brand of watch? What wireless technology is allowing the chest strap part to communicate with the wristwatch part?
Of course I went with the cheapest such watch at walmart, so there wasn't really any exhaustive documentation of the technical specifications in the packaging. The brand is "sportline" and I think it was a model they're no longer selling -- can't find it on walmart
's websites, but I think it is on amazon
. And a reviewer
at amazon mentions the strap's compatibility with machines at the gym.
Through some googling I've found some weak evidence that something at-best vaguely designated as "5 kHz
" might be considered the industry standard heart-rate transmission technology. The only other possibly competing technologies I'm aware of are bluetooth and something else called ANT+.
Bottom line: does anyone know if one could buy, for example, a used polar watch and expect it to work with this "sportline" strap?
... and might there be any kind of receiver that one could plug into a smart phone in order to capture this data? (I imagine the best solution for this sort of thing is just to buy a bluetooth transmitter chest strap)