Samsung’s new Gear S2 smartwatch reminds me of an Apple product. No, not the Apple Watch — the original iPod. Its clever spinning bezel, which lets you quickly switch between apps and select things within them, offers some of the same discoverable agility as the iPod’s click-wheel dial. “Elegant” is not the word I’d use to describe my experiences with many smartwatches. But after an hour of trying out the S2 (at this week’s IFA trade show in Berlin), that description seems to fit. Fit and feel The Gear S2 — announced Monday and due in October at an unannounced...