I have an A95X box ( https://www.gearbest.com/tv-box-mini-pc/pp_414757.html ). I will likely be joining EpicStream via one of their re-sellers. Is that box adequate for HD/4K? We have a main TV in the family room where we do the majority of viewing. I also want to set one up in the master bedroom. I also have a new Amazon Fire TV stick (with 4K) that I could use as well (if that's possible). I'm not sure if I need to buy anymore hardware. We will be keeping Verizon FiOS internet.
Thanks!
Welcome to the world of IPTV. IPTV does not have 4K and 60 FPS mainly for sports. Your hardware is fine.