Tired of "trainer" a heavy and bulky smartphone during my shopping, I was looking for a simple and fun GPS watch. This Nike + is the perfect companion. It is not packed with features in which an amateur could get lost and which anyway are unnecessary for most. Also the Nike + platform is fun and well done. Coupled with a sensor housed in shoes (Nike preferences because some have housing to accommodate said sensor), it proves sufficiently precise for the amateur. A strongly advise.