Elevate your productivity with the beautiful and powerful Samsung Galaxy Note 5. Multitask with ease on a 5.7" Quad HD Super AMOLED display, capture clearer images with a 16MP camera, and never miss a detail using the Advanced S PenTM. Get more done and look great doing it.Condition Notes:Excellent: A Stock – Very light signs of use = 9/10Very Good: B Stock - Light scratches on the body and screen that are noticeable but insignificantGood: C Stock - Plainly visible scratches on the body and screen and maybe even some dents on the exterior - screen may have slight discoloration, such as small white spot or a few small dead pixels. Package Contents:1 Samsung Galaxy Note 51 Charging Cable1 Charging Adapter1 Generic Box** Sim card not included*** Memory built in - SD Card NOT included 30 Days to Try and Return for Any Reason 6 Month Warrantied Against Defects What is GSM and CDMA? The majority of carriers, such as AT&T and T-Mobile, use Global System for Mobile communication (GSM) technology. GSM phones have a SIM card that stores your account information and, if you choose, your phone book. When you switch to a new phone, you can activate it by simply removing the card from inside the old phone and inserting it into the new one. Some major carriers, such as Sprint and Verizon networks, mainly use Code Division Multiple Access (CDMA) technology. These phones do not require a SIM card and are activated directly by the carrier. What is an Unlocked cellphone? Most cell phones are designed to use a SIM card which is issued by a carrier and provides cell service by activating any phone into which it is inserted. A locked phone will only recognize a SIM card from a particular carrier. The "lock" is a software setting that keeps the cell phone "loyal" to one carrier. If the cell phone is unlocked, it will recognize a SIM card from any carrier. An unlocked cellphone can work with most SIM cards and/or GSM service providers. It also allows you to switch carriers without having to buy a new phone.