Stay informed in style with the Gear S3 smartwatch. This slim watch connects to your Android smartphone to bring you notifications, track your health, and even replace your wallet. Running the Tizen 2.3.2 OS, the Gear S3 classic pairs with a wide variety of Android 5.1+ smartphones over its Bluetooth 4.2 connection. It's controlled via its rotating bezel, home and back buttons, and 1.3" 278 ppi circular AMOLED touchscreen.