I have a Garmin FR 910xt with quick release strap, a black strap, and a green strap that I am looking to trade for either a 210, 220, or 610 + a little cash. It is in great shape and has about one season of use. I only used it for swimming a few times and was mostly used for running. I ended up getting a 510 for the bike during the season so I really dont have a need for all the features. If interested let me know what you have and I can trade photos.