4x fun with the world's first 4x camera Galaxy A9 Take advantage of the hyper-mobile lifestyle with the colorful Galaxy A9. Easily capture beautiful photos with the world's first quad lens camera. Immerse yourself in the large 6.3-inch Infinity Display and Dolby Atmos surround sound. And thanks to the sleek, ergonomic design, your hands stay comfortable as you stay connected. Made for more efficiency Streamline the way you multitask. App Pair lets you simultaneously open two apps you often use together. While Snap Window pins an important window to the top of the screen so you can keep track of a streaming video or chat as you work on other things below. So you can do more, faster Connect quickly and seamlessly on the Galaxy A9. Its Octa-Core processor and 6GB RAM combination provides performance that keeps you going at high speed whether you're live streaming or multitasking. Keep more of your memories Galaxy A9's 128GB internal memory capacity makes sure you have the space to store your snaps — as well as movies, music, and the other important files you need on hand. Plus, you can expand your storage up to 512GB more with a microSD card. Power through your day The Galaxy A9 is equipped with a 3,800mAh (typical) battery that powers your streaming, chatting, and gaming longer, so you don't have to keep an eye on the nearest cord. The Type-C cable makes it easy to plug in and start charging, Fast Charging capabilities mean you power up in a flash. Convenient ways to unlock The Galaxy A9 features biometric authentication, meaning it's simple to unlock your phone with just your face or fingerprint. Plus, you can set a pattern, password, or PIN. Add in built-in Samsung Knox and your important information is kept secure. International model phone, does not have US warranty, will work with Most GSM SIM cards in U.S. and world Including AT&T, T-Mobile, MetroPCS, Etc. Will NOT work with CDMA Carriers Such as Verizon, Sprint and Boost.