The document discusses new smartphones available for purchase through IIJmio, including models from Sony, OPPO, ASUS, Sharp, Motorola, and others. It provides specs, pricing, and promotions for each phone. It also reviews the history of SIM-free smartphones in Japan from 1st to 5th generations and the manufacturers that entered each generation, such as Huawei, ASUS, Freetel, Sharp, ZTE, and Motorola.