The strap on my Polar FT7 watch broke. I looked for a replacement watch and couldn't find any from less that $100. I was able to locate a replacement band for $8 and now can again get at instant HR while wearing the Polar chest strap with sensor. The newer Polar chest straps will output in both ANT and bluetooth. I bought a holder for my cell phone, downloaded the Polar app, and now via bluetooth can see my HR on the phone mounted on the handlebars. I wear the watch as a backup. Maybe there is a watch out there that only does basic functions like HR, but I couldn't find one.