As new Bryton Rider 30. Same size as a Garmin 500 and if I didn't already have a 705 and 800 I would actually keep it.
Had to have it seen on our bikes at on rides to race starts and pre-race, was not used during races as I had a Garmin. As such is in perfect condition.
Comes in box and with all the mounts for bike. Not HR strap or cadence. All firmware updated and can confirm it picks up ANT+, as read my power meter without a worry.
$150 + postage