Two clips for each camera. Both in auto white balance mode. First, going from 5600K (daylight) to 3500K (incandescent), then going from incandescent to daylight. The first camera for each sequence is the GH4.

You can see that the GH4 AWB never compensates fully under incandescent light. The LX100 nails it under both lighting conditions. The speed of adjustment is similar for the two cameras.

The GH4 uses the Lumix 12-35mm f2.8 lens. The LX100 lens is extended so that the f is 2.8. For both ev was set to -1/3.