Here is a smart headset that aims to help its wearers lose weight more easily. The Modius Weight Loss Headset stimulates the nerve behind your ear to send the right signals to the part of the brain that regulates appetite and cravings. It is comfortable to wear and comes with 150 pads and 100 wipes which is good enough for 12 weeks use.
The companion iOS/Android app allows you to control headset levels, log your weight, and track your progress. The bad news? Something like this doesn’t come cheap.