What'smaximum audio rate Apple Watch can reach when streaming from Spotify?

[ricostrower]

maximum audio rate Apple Watch SE 2nd gen can reach when streaming from Spotify, Tidal or Apple Music? I assume it's Bluetooth 5.3 but will it be lossless quality? If not, what's the maximum? How much we depend on the quality of earphones being used for Watch SE to stream this kind of audio?

[ToolboxT]

Hi, 

Spotify does not support lossless audio yet. I believe the only devices that are able to support lossless are iPhone, Mac, Apple TV 4k.