The Prestigio Multiphones 5453 and 5504 Duo are new smartphones that are similar in all aspects, aside from size and price. The 5453 is 4.5″ while the 5504 is 5″. Both have 1.3GHz quad-core processors (Android 4.4), 960 x 540 resolution and dual SIM slots. They use IPS panels and each offers up to 57 hours of talk time, says Prestigio. They are on sale now for $165 and $180, respectively.