I used my SBH90C earbuds in wired mode with no issue with my Google Pixel 2 XL phone. I got an Xperia XZ2 Premium and I get connectivity issues. When the phone goes into (sleep mode) blank screen, the audio is stopped and I need to press play again to restart the music. It gets extremely annoying as it randomly stops between 5s-3m after the screen turns off. I sometimes get the chime of the usb connection.
That sounds incredibly annoying, does it happen with 3.5mm earbuds and the USB C adapter? My XZ2 compact is fine with 3.5mm and the Razer adapter, also been using the new Huawei ANC and they're OK. I was thinking about the SBH 90 but was wondering about sound quality. My XZ 2 compact is still on Oreo 8.0 if that's relevant.