Taking off from your list of Bluetooth candidates, and not trying to define HiFi or categorizing any Bluetooth device as such, I suggest or share the following option:
I first heard my nephew-in-law's Bose Revolve II speaker at his home and was surprised how good it sounded. He has a set of KEF speakers in his listening room, but also likes to play/project music stored on his phone throughout and around his house. I stayed there a couple of weeks and he lent it to me to use it to listen to my own digital files. Later, when I was looking for a portable bluetooth speaker to use as he used it --to take from room to room, outdoors, and to travel with, I got one of my own. It gives me a very nice satisfying sound regardless of what I play through it, mostly with other portable devices, namely, one of two DAPs, or a phone. It connects automatically and immediately, it projects a very nice, satisfying "surround" sound of sorts, it get plenty loud, has good battery life, it has a solid aluminum build that looks as clean as it sounds, if not quite elegant, and a second unit can be set up through an app to reproduce stereo sound. I don't expect any more from a reasonably-priced Bluetooth speaker. This was the first Bose speaker I ever even tried: It may work for you as well.
It matters not to me whether it is "hi-fi" or any category, I'm satisfied that it reproduces FLAC digital file sounds nicely, impressively-enough to me and others, for selected important-to-me applications.
Take your time shopping, trial candidates if you can, and enjoy your eventual selection and your music especially.