This item is Bluetooth Model & International Version. (**IT DOES NOT SUPPORT 2G, 3G, 4G LTE MOBILE NETWORKS**) It comes with a European plug, but any standard micro 5 pin USB cable (Android phone charging cable) works.
Compatible with Android 4. 4 (KitKat) and later with 1. 5GB RAM. Some features may not be available. For best compatibility, connect with Samsung Galaxy phones. (It does NOT support Samsung Tablet & iOS)
The Gear S3 has a built-in speaker that lets you make or take calls right away without ever having to remove your phone from your pocket. (*Bluetooth model requires Wi-Fi connection and a voice call app for phone-free calls. )
Battery : 380mAh (up to three days) (*Battery life may vary depending on usage and settings. ) / Sensor : Accelerometer, Barometer, Gyro Sensor, HR Sensor, Light Sensor / Connectivity : Bluetooth v4. 2, Wi-Fi b/g/n, NFC, MST, GPS/Gleans.