The wearable looks a bit like an Apple AirTag on a necklace. Friend is designed to be always-on to hear whatever the wearer says (as well as any other noise they're near), use AI to process those inputs, and formulate its own responses, which it then sends via text message to the wearer. "The more you talk to it, the more you build up a relationship with it. And that's really the whole goal of the product," Schiffmann told Fast Company in July 2024.