No - I also have a delay of at least 1 second. To watch videos properly, you need aptx low latency, and neither the sony s nor the iPhone can do that. Or finally a possibility to set / learn the latency, as is now possible with the AppleTV, for example. But that would have to be implemented by iOS or the video player.

I don't feel any delay with this model. Maybe something was fixed there (firmware)?

I also have the previous model - WF1000-X This one is supposed to be better.