My phone is my primary device for listening to music. I use an Audioquest Dragonfly Black DAC/amp at the moment because it requires less power so is less draining on my battery. My current phone is a Samsung S9. What I am wondering is if any of those ultra large battery life brick phones are any good or even work with AT&T? As the ones I have found seem not to or work very poorly as they do not have 4G support. Or if there is a competitor to Mophy cases that support audio out over USB C? I currently use Bowers and Wilkins P5 wired headphones but would like to upgrade to P7 or P9 ones and a dragonfly red if there is a half way decent phone that supports it. I would happily give up OLED screen, wireless charging, and form factor for a better music experience. If anyone can either point me the direction of a good phone since the Energizer phone was cancelled or charging case that supports audio out over USB C I would appreciate it.