3rd Party apps on Android Wear 2

doctorjuggles

I'm trying to find out if 3rd party apps (specifically the Polar Beat app) can be installed on Android Wear devices.
My Polar H7 works well with my phone, but I've upgraded and the new phone is too big to lug around, so I wanted to get an entry-level wearable to track my data (route/time/HR via H7>bluetooth etc.).
However I can't find a simple answer to the question - would something like the Moto 360 Sport be able to install Polar Beat and sync to the heart-rate monitor for this?

Thanks in advance for any advice