Stereo Bluetooth quality is probably the weakest point of this phone (unless the Bluetooth devices supports aptX). For portable, the JBL Charge is a favorite of mine; it's loud and has a big battery and includes a USB port to charge off of. Although you'll definitely get better sound using the auxiliary input than Bluetooth (again, because of our phone, not the speaker). It easily outclasses the Beats Pill and costs much less, too.
If you're home-use speaker is for the bedroom, the Charge would likely fill that role nicely, as well. If you're looking for something that will fill the living room, I'd recommend the Auvio HBT2000 (it's a radio shack brand). It's loud, clean, plenty of bass and can play via Bluetooth, Auxiliary cable and provides a USB port for charging. As it's quite powerful, it must be plugged into an AC outlet to operate. IMO, it's the most underpriced large Bluetooth speaker available.
Sent from my LG E980 via Tapatalk Pro (and stupid-fast LTE)