Dear Tony i can't find video bitrates detail for the s300 camera.
I know chipset & sensor powerfull 4k30,1080p recording supports 100mbps(Hi3559V100 chipset datasheet),
But i dont any spec,info camera record quality options.
My Sony :
3840 x 2160 30p/25p/24p: Approx. 100 Mbps & 60 Mbps...