I heard about this a few days ago, supposedly this young bear is accustomed to people, so someone probably gave it a donut and stuck a trump sticker on the collar. Yes the collars are bulky, has a battery, GPS transponder, etc in it.
This bear apparently is used to getting food from people, when it gets older it will probably be an ahole and take what it wants. More than likely need to be killed for it.
I have wolves on my game camera where I am bear hunting this fall, some of the wolves have tracking collars on them, just as bulky as the bears.