Google has confirmed that the Huawei-made Nexus 6P and LG-made Nexus 5X don't offer support for aptX Bluetooth streaming, a new feature that the company's upcoming mobile OS - Android O - offers. The confirmation came in the form a reply from a Google developer to a question put up by a user on the company's Issue Tracker website. Here's what the developer said: "Unfortunately, aptX and aptX HD are not supported on Nexus 6p and Nexus 5X - only on newer devices." For those who aren't aware, aptX is a proprietary streaming protocol currently owned by Qualcomm. In layman's terms, it...
Source: http://www.gsmarena.com/nexus_6p_and_5x_dont_support_this_new_feature_in_android_o-news-26189.php