Sony MWC 2019 will be a litmus test for its mobile business (JC Torres/SlashGear)

JC Torres / SlashGear
Sony MWC 2019 will be a litmus test for its mobile business – Despite rumors to the contrary, Sony remained relatively silent at CES 2019 as far as mobile devices go. Instead, it preferred to focus on its key strengths, namely TVs, AV receivers, and Blu-rays. It cant remain silent for long, though, and at MWC next month, it will have to face …