How to find the SN/IMEI of my Nothing product?

For Nothing Ear (1), the serial number can be found on the box just below the bar code or engraved on the metallic closure of the case lid.
For Nothing Phone (1), you can find it on Settings - About phone.
For Nothing Adapter, the serial number can be found on the body - SN. 
For Nothing Ear (stick), the serial number can be found inside the charging case.