Send and receive texts, calendar notifications, news updates and more right on your wrist. and Battery performance may vary depending on network conditions and configuration, and device usage. With rotating bezel and unique circular interface, easily access your apps and notifications.OS-Tizen based wearable platform.Processor speed-Dual core 1GHz exynos 3250 With a circular design and stainless steel construction, the Gear S2 matches your style. Thousands of third party apps available. Interchangeable bands and hundreds of available watch faces. Please refer the User Manual before use. It doesn't have speakers, hence use Level U bluetooth headphones to hear music.