20-02-202106:24 AM - last edited 20-02-202106:25 AM
I use WQHD 60hz and get 5-6 hours SOT the reason I uses WQHD is I like the sharper visuals and because 120hz is fixed on S20 I find I lose at least an hours battery life with it in.
you have to mess about in developer settings YouTube it it's a write operation, I have just switched down to FHD so hopefully that will save me a bit more