The info on the interweb is both plentiful and vague on the comparative bitrates of APTX, AAC and SBC but as I understand AAC is capped at around 256 kbps and APTX around 350 kbps? I regularly switch between iOS and Android I am curious as to the real world limitations of wireless headphones on an iPhone vs APTX equipped droids? e.g. using Apple Music and it's 256 kbps AAC should mean no loss but I'm unsure how higher bitrate stuff like Spotify 328 kbps or the standard Tidal 328 kbps AACs would compare and how much of a bottleneck the AAC codec would be on an iPhone? With aptx-hd now available on both phones and headphones I am wondering how much of a real world quality advantage Androids now have with wireless headphones?