This watch comes with original charger and 4 brand new watchbands for free (Orange, Navy, Red, and White) - Size of watch face : 46mm - Size of watchband: Large (For normal wrists) This item is WiFi and Bluetooth device only. 5GB RAM. 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. Memory : 768MB (RAM) + 4GB (ROM) / Chipset : Exons 7270, Dual 1. 0GHz / OS : Tien OS 2. 3. 2 / Etc. : Mic, Speaker, Water and dust resistant IP68.