In response to bold... YES! (That, and the V10 is an LG flagship, and the HTC 10 is certainly an industry flagship). Hell, just looking at the hardware, the V10 (and others, but i will speak to what i own and know) has an ESS9018 DAC and 9602 AMP; two parts well respected for their quality and power. Now, i will happily grant implementation plays a key.. but why is it hard to believe a phone with great hardware somehow still instantly sucks?
No, its not replacing a studio MIC, but it is not advertised nor built to be doing so either. However, these new generations of phones are built to provide excellent SQ in a convinient package..
Ironically, i think people are oddly getting too hung up on the "phone" thing. Frankly, i am happy to challenge that the only major technical difference between something like the X7 and V10, is the existence of a cellular radio. Both devices run mobile device hardware (ARM CPUs, RAM, and eMMC storage) and software (specifically built versions of Android). Now, granted, i expect a device like the X7 to have better audio filtering, but in the mobile scope of things, we aren't looking at a drastic quality difference (compared to say a full desktop setup)..