It's situated close to the Austrian border and in fact it's a "independent" duty-free area which means that you might be controlled by the Swiss customs as well when going to or leaving Samnaun. There are four villages inside the Samnaun area, Samnaun-Dorf (at the end of the road going through the area), Compatsch, Laret and Ravaisch. In the winter Samnaun is a place for snowboarders and skiers, as Samnaun is a part of the ski center in Ischgl at the Austrian side of the border, in the summer people come there mostly for shopping and enjoying the nature. There are many shops selling jewellery, swiss watches, alcohol and tobacco as well as many restaurants and hotels.
Walking is the best way to get around inside Samnaun-Dorf.
In the winter Samnaun is excellent place for winter sports. In the summer there are also a variety of sports like hiking, biking or tennis.
There are many duty-free shops in Samnaun similar to those at major airports. However one has to remember that there are some strict customs regulations. Please pay attention to these otherwise you might get in trouble.
There are relatively many restaurants in Samnaun. No fast-food available, but instead more classic restaurants with usual Swiss menus... and prices.
There's a huge amount of hotels in Samnaun, many of them are offering wellness services etc.