Workmanship: is good at both. The design is a subjective decision and therefore a matter of taste. I personally like the XQ much better.
Comfort: is good at both. Even after a long time expresses nothing and there is no hot ears. The ears are completely enclosed. Exterior noise is so largely shielded.
Bluetooth pairing: works with both very good and fast. Annoying is the Bluedio the flashy blue flashing.
Now for the most important criterion of all: sound quality
Vorneweg: Sonically not Bluedio comes close remotely at the XQ!
Compared to the XQ Bluedio sounds like a tin can, comes out of only Bassgebrummel. Just creepy. As also helped several attempts to make the sound halfway ears fit a variety of equalizer settings, nothing.
The XQ scores contrast with well-balanced, not aufgringlichen sound that already sounds good even without subsequent equalizer tinkering! So does listening to music fun!
The touch panel control on headphones is great. No buttons like the Bluedio, where you only Duch annoying blind Search presses with the same hoffenlich correct function and then eventually it caught the wrong button.
The XQ is - yet also comes with an additional hardcase for storage - unlike the Bluedio.
Conclusion: I returned the Bluedio again.
The XQ I can only recommend. Value for money is excellent! => Buy!