Rate Monitor

What polar heart rate monitor would you recommend?

I would like to run on a treadmill and outside. I also would like to monitor my heart rate while lifting weights.

Depends on what you know and want to achieve. If you have a good knowledge on heart rate training and just need something you can put limits into as intervals, then the S210 is probably best. If you want it to break down heart rate zones, do the calculations then something along the lines of the RS200 (which you can put an optional foot pod on that quite accurately measures running speed and distance). If you want bike abilities then your heading up in price.

If however you just want something to show you what your heart rate is, then even a basic old A3 will do the trick.

---