Samsung have released their new high-end smartwatch for 2015, the Samsung Gear S2. The Tizen OS device comes in three versions. The Gear S2, Gear S2 Classic and Gear S2 3G. The S2 and S2 Classic feature Wi-Fi and Bluetooth connectivity, 1GHz dual-core Exynos 3250 processor, 512MB of RAM, 4GB of storage and a 250mAh battery. The Gear S2 3G features a 1GHz dual-core Qualcomm processor, 512MB RAM, 4GB internal storage, Wi-Fi, Bluetooth, 3G connectivity for data and voice, and a larger 300mAh battery. On the exterior, the S2 and S2 3G sport a dark grey casing and lighter grey band, whereas the S2 Classic features a black casing with black leather band. All models have a 1.2" 360 x 360 AMOLED display, a rotating bezel, which is used for menu navigation and interaction with applications, and are all IP68 certified for dust and water resistance.