Omi, formerly known as Friend.

Good:

- Open source

- about 1/10th the price of an Ai Pin.

But not a similar device to the Pin:

- Always listening (vs the Pin's touch requirement)

- No on-device visual UI (vs Pin's laser ink)

- On-device AI (vs. multiple cloud-based models)

- No cellular service

- Not released for general use yet (a dev kit is not a consumer product)