I have to say that I have amazon prime and netflix subscriptions and one thing I can assure myself that they are not as good when it comes to streaming in 4k and the quality although some films shot in 4k could not maintain running at 4k mode. Amazon prime in particular keeps going back to hd and I have verizon high speed internet. Ultraflix however maintains 4k and it is not even HDR ready and the movies are amazing and smooth. Waiting for HDR to come soon.