The Galaxy Gear is designed so that users wearing the watch can make and receive calls without removing their phone from their pockets or bags.
Wearers can answer calls by raising the watch to their ear.
More top news
Tottenham Hotspur footballer Kyle Walker said he is "disgusted" after being wrongly linked to an explicit video being shared online.
Tributes have been paid to a young BBC Radio presenter who lost his battle with skin cancer aged just 33.
David Cameron is to put working people "front and centre" of his economic plan our economic plan" if the Conservatives win the election.