Ha. My Essential Phone has a magnetic connector on the back for the planned attachments. I just set it on my ancient Macbook and the screen went off. Yup. It triggered the magnetic sensor that says the screen is closed.
Speaking of the Essential Phone attachments. The 360 camera was super cheap after the phone went out of production. I wonder if the ACTUAL AUDIO JACK attachment has come down in price. I'd love to have that.