The white noise/superior sleep feature does not work for some reason.
Start ‘superior sleep’ within the app and the ambience plays as expected.
turn off screen, change apps, etc. About 30seconds into the ambience, the sounds becomes distorted and crackly, like a bad or degraded connection. Unlistenable.
if you open the wakey app/make it the current app, this fixes it while open/current, then gets bugged again when not. Even leaving the app current and shutting off the screen produces this bug. Must have screen on and in app to prevent.
100% reproducible. Restarting phone, clock, etc did nothing. Changing phone power settings, Bluetooth options, etc did nothing.
As is, one of the main features is bugged. If Anker is aware and plans a fix, I’ll keep my Wakey. If not, I have to return it until this isn’t an issue. Love this clock though…
I will gladly record video/sound of the issue if it helps fix this. video posted in this thread now
One suggestion. A pure white noise track would be great. Most of the ambient tracks have enough cues/clicks/lulls/etc to focus on
 This issue also occurs with a Galaxy S9+.
However, my iPad (not iPhone) played the superior sleep noise without issue. I let it play for at least 20min.