If you're waiting for Sony to announce new high-end smartphones at CES 2018 later this month, you might be in for a disappointment. According to Georgian website Vortex.ge, Sony plans to unveil its first high-end handsets of the year a bit later, at MWC (February 26 - March 1). If that's true, Sony's CES 2018 press event will likely bring us just mid-range and lower-end phones like the recently leaked Xperia XA2, XA2 Ultra, and L2.

Reportedly, Sony intends to showcase the following smartphones at MWC 2018: Xperia XZ1 Premium, Xperia XZ1 Plus, and Xperia XZ1s - all being upgrades over Sony's high-end handsets of 2017.

As its name suggests, the Xperia XZ1 Premium should be the most advanced device among the new models. Similar to its predecessor (Xperia XZ Premium), the XZ1 Premium allegedly sports a 5.5-inch screen with 2160 x 3840 pixels (4K). But the phone should bring plenty of improvements, including a Qualcomm Snapdragon 845 processor, 6 GB of RAM, and 128 GB of storage space. What's more, the new handset reportedly has a 12 MP dual rear camera, and a fingerprint scanner on the back.

It's said that the Xperia XZ1 Plus and Xperia XZ1s also feature rear fingerprint scanners and dual 12 MP cameras. But the XZ1 Plus should be bigger and more powerful, thanks to a 5.5-inch 1080p screen and a Snapdragon 845 processor, whereas the XZ1s reportedly sports a 5.2-inch 1080p screen and uses last year's Snapdragon 835 CPU. Both phones are expected to come with 4 GB of RAM and 64 GB of storage space.

Announcing a new Xperia Premium at MWC 2018 makes sense, as the new device would come one year after the Xperia XZ Premium (unveiled at MWC 2017). As you may have noticed, there's no mention of any Xperia XZ2, though Sony could save this name for its high-end phones scheduled to be introduced in the second half of the year.

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Not long ago, we've stumbled upon a couple of renders allegedly revealing the designs of two upcoming high-end Xperia phones (pictured above), both sporting screens with thin bezels. It remains to be seen if the Xperia XZ1 Premium, XZ1 Plus, or XZ1s resemble any of these two handsets.