Use I2C bus on XIAO Round Display?

I want to add some I2C sensors to a XIAO plugged into a Round Display for XIAO. Which pins does this environment use now? I think the touch screen input and battery life chip are I2C now. Thanks

You can use a multimeter to find the pad connected to IIC and solder the two wires directly to it.

IIC is on D4 & D5

Great answer, thank you