You need an Xperia 1 ii like Pitter. That’s a real big boy aptx HD phone.
Dont think that is the point...it should work with any device (phone, streamer, DAP, etc that is capable of aptX HD). Looks like this is an issue with the PI7 that B&W needs to address. Another phone (regardless of being "big boy" or not) is not an option and should not be a solution. AptX HD is listed in their specs and it does not say aptX HD only with the Xperia1.
I was hoping to use these with the Node 2i that sits on my desk so I am disappointed but not giving up on B&W and hoping they can address in a firmware update. Will be reaching out to them when I have some time.
Well actually Android does not let you use APTX-HD, but APTX Adaptative that is the improvement of Qualcomm to the aptx-hd. Aptx Adaptative is a revision of Aptx-HD of Qualcomm from 2018, and it is actually compatible with aptxhd and aptx. Which actually makes sense as it allows also 24bits @ 48KHz improves stability and reduces latency.
It is well explained in wikipedia, so don't you worry, you get the best quality possible with it: https://en.wikipedia.org/wiki/AptX
aptX Adaptive
aptX Adaptive is a next-generation dynamically adjustable audio codec intended for premium audio quality and low-latency. aptX Adaptive’s bitrate scales dynamically between 279kbps and 420kbps. It also works with a shared, rather than dedicated, wireless antenna.[37] Qualcomm claims their new compression algorithm provides a compression ratio between 5:1 to 10:1. This allows aptX Adaptive at 279kbps and 420kbps to produce the same sound quality as aptX at 352kbps and aptX HD at 576kbps. aptX Adaptive supports 16 and 24 bit-depths at 44.1, 48, and 96 kHz sample rates. Hardware aptX Adaptive has end-to-end latency of 80ms,[29] but most phones are using a software transmitter - which does not have any latency advantages over other codecs.[41] aptX Adaptive is also backward compatible with older aptX codecs.[37][42][43][44]