A mysterious Sony smartphone has received Bluetooth certification from the Bluetooth SIG. Dated January 31, the listing doesn't reveal much about the device, except that it carries the model number of PRO20161112 and features Bluetooth 4.1. There's no information on the device's pricing, as well as whether or not it will be made official during this year's MWC. Speaking of MWC, the Japanese company is rumored to unveil as many as 5 smartphones at the event, including a Snapdragon 835 flagship with 4K screen. Source
Source: http://www.gsmarena.com/mysterious_sony_xperia_smartphone_receives_bluetooth_certification-news-23137.php