Sport Watches

Started running about 3 months to try to loose 8 lbs. Like outdoor running/jogging. Garmin Forerunner seems fancy, but Inot sure if GPS is needed. The Timex watch is too slient, sometimes can’t hear the beep for interval training. I don’t like the HRM strape. But, I heard strapeless HRM is not accurate. Ipod is great partner, but don’t do HRM. Don’t like to carry so many things during running. Any suggestions?

having a hard time deciding which one to get, looking mainly at the garmin forerunner 310xt and the polar rs800cx. are both of these products top of the line? which one is better, or are there other good choices out there? thanks for the input!