The new samsung gear s2 is based on tizen opreating system.
Tizen has always been a gamble for samsung but this time its paid off unlike all the android wear waches from huawei and lg and motorola which benifit from recent updates but can’t realy move the category on the gear s2 is doing its own thing. And its thing is a damn well easy to use smartwach os. As easy to use, infact, as our beloved pebbles os. So campany fit the tizen os in the samsung gear s2 smartwatch.