The Samsung Galaxy J7 Perx for Boost Mobile is a carrier locked device for use with Boost Mobile service only in the United States. The J7 Perx features include: 5.5″ HD Display, 16GB ROM/2GB RAM, Boost Mobile Service, 3300 mAh Battery, 8MP Camera, 5MP Front Facing Camera, 2.2 GHz Octa-Core Processor, Android™ 7.0 (Nougat), Bluetooth, And Much More! Device must be activated with Boost Mobile for use. Monthly no contract plans start at $30 a month.