I have an Etrex Legend and love it. It does have VMG. Keep in mind though that no GPS realizes a cat sailor's definition of 'waterproof'. My first unit got swamped while attached via the 'handlebar mount' on the tiller (was a great mounting spot though!) and again in a life jacket on the trampoline and again trolling behind my hobie 18 after it fell through the trampoline lacing - but it worked through all but one of those mishaps! I finally learned and now keep it's replacement unit in a dry bag laced to my life jacket.