The timeless dark gray Gear S3 Frontier smartwatch combines style with the latest innovation in digital technology and delivers it right to your wrist with a 1.3-inch Super AMOLED full-color display. Compatible with select Bluetooth-enabled smartphones running Android OS 4.4 and later with at least 1.5 GB of RAM, as well as iPhone 5 and later running iOS 9.0 and higher. Not all features are available with paired iOS smartphones. Gear S3 compatible smartphones may vary by carrier and device. For best results, connect with compatible Samsung Galaxy smartphones.