Sony's smartphone division has had a tough time keeping up with big-name market leaders like Samsung and Apple, and emerging Chinese Android phone vendors haven't helped the company at all. Sony continues to press on though, and its latest line of smartphones is perhaps one of its most impressive yet. The Xperia X lineup was unwrapped recently abroad, but on Tuesday Sony announced US pricing and preliminary launch details for four upcoming news smartphones, the-Xperia X Performance, Xperia X, Xperia XA and Xperia XA Ultra. MUST SEE:- Game of Thrones is falling apart Sony says its new Xperia X lineup of smartphones-offers a "premium finish as part of its unified design concept." The phones clearly have plenty in common with earlier Xperia handsets where design and styling are concerned, but they do refine the look a bit.-They're immediately recognizable as Sony smartphones, which could be a pro or a con depending on how one feels about Sony's previous handsets. The Xperia X Performance boasts a Snapdragon 820 processor with 3GB of RAM and 32GB of internal storage. It also features microSDXC support up to 200GB, a 23-megapixel rear camera, a 13-megapixel front-facing camera, a 5-inch full HD display and Android M. Then the Xperia X sports similar specs but uses a hexa-core Snapdragon 650 CPU to offer as much as 2 days of battery life. Sony's new Xperia XA Ultra and Xperia XA focus more on style, and the former sports a larger 6-inch display. All four new smartphones will be released in the US this summer, with preorder availability for the Xperia X beginning today on Amazon -for $549.99 with a 128GB microSD card included. Preorders begin on June 19th for the-Xperia X Performance ($699.99 with a free 128GB microSD card), Xperia XA Ultra ($369.99 with a free 64GB microSD card) and Xperia XA ($279.99 with a free microSD card). More information about these four new phones can be found on Sony's website: Xperia X Performance Xperia X Xperia XA Ultra Xperia XA

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