I don't see that as a worthy goal nor I do believe there is any significant market demand for such a thing. It's almost impossible to exist in modern society without a smartphone.
Presumably the billions of dollars invested in this space would be evidence enough, or the success of things like the apple watch, or how Meta is shifting towards wearables to achieve a similar goal. I don't know what kind of "evidence" you're looking for here.
Do you have evidence this is something the market doesn't want?
The success of wearables doesn't mean people are looking to replace their phone -- these are all phone accessories. This AI pin would have been more successful as a phone accessory than a stand-alone device.
People already have to or want to carry their phone around; they are not looking for separate phone-replacement device. They want something that compliments their phone, not replaces it.
That is only evidence that gambles are getting desperate.