Samsung have been in the smartwatch game longer than most, but thus far none of their watches has really been a breakout success. Their new Gear S2 model looks like their best effort yet though, with a slim, full-circle display and a cool rotating bezel for scrolling around the Tizen OS. The watch has received middling to good reviews thus far, with reviewers praising the design, build quality and screen. Points have been taken off though, due to a limited app selection, mediocre battery life and poor voice support. Still, the Gear S2 looks like one of the best smartwatches for Android released this year.