I am torn about completing my Polar 720i unit- I need to get the power output thingie, and the optional cadence reader. I also would probably need the infrared thingie too, because I don't think my laptop would have it.
g'day koffee,
I have an S720I. I don't have the power meter 'thingy' (the technical term!), but i have all the rest of the stuff you mentioned. If you are training seriously, (& it sounds like you are planning to!), cadence feedback is a must!, especially if you are planning to develop your 'spin' on rollers. The infa red 'doover' (ya gotta luv technical terms!)came with my unit as standard, maybe they sell them seperately in the states?. Anyway, your PC should be ok, you can get them to plug into either a serial port (like where your printer goes), or a USB port. You need to specify which unit you want when you order it. The training 'feedback' that comes with being able to 'download' the info from the 'watch' is invaluable & fascinating to study (& the whole point of owning an S720, i would of thought!). If the budget is tight, get the cadence & the infared before worrying about the power meter,
cheers,
Hitchy