This is why many audiophiles tend to prefer wired speakers/headphones versus wireless when possible, but that’s something that Qualcomm is trying to address with its aptX codec. Unfortunately it seems that if you’re a Nexus 5X or Nexus 6P user, it looks like you’ll be out of luck if you’re hoping for aptX support.
A user posted onto the Google Issue Tracker about how aptX was not supported on his Nexus 6P, which presumably he thought was a bug or a missing feature. However Google replied by saying that it was intentional. “Unfortunately support for aptX and aptX HD are not supported on Nexus 6p and Nexus 5X – only on newer devices.”
For those unfamiliar, aptX is a codec that supposedly offers higher quality audio when transmitting over Bluetooth. Whether or not you think you can tell the differences between a wired or wireless connection boils down to the individual, but if you’re someone who can’t tell the difference, then we guess this probably isn’t that big of an issue.