The Samsung Galaxy S6 is unlocked and compatible with any network. It features a 5.1" Super AMOLED capacitive touchscreen, providing vibrant and clear visuals. With 3GB of RAM, it offers smooth performance and multitasking capabilities. The phone runs on the Android operating system. It has a nano SIM slot for your SIM card but does not have a memory card slot for expandable storage. The rear camera has a 16MP resolution, allowing you to capture detailed photos. For selfies, it features a 5MP front-facing camera. The phone runs on Android OS 5.0.2 (Lollipop), offering a user-friendly interface and access to a wide range of apps and features.