"There’s only one problem: it just doesn’t work." https://www.theverge.com/24126502/humane-ai-pin-review
https://www.cnet.com/tech/mobile/humane-ai-hands-on-my-life-so-far-with-a-wearable-ai-pin A device like this has a great potential as beingt like a satelite to a persons smartphone. However, whenever more advanced versions of this tech actually works almost flawlessly, a smartphone with all of its features, is still so much better.
https://www.trustedreviews.com/opinion/the-humane-ai-pin-is-cool-but-phones-arent-going-anywhere-4426449 While any moblephone can display the time, many people still like to wear a wristwatch. Even the convenience of a smartwatch has its limitations, when compared to a high-end smartphone.
Some people might eventually want such tech implanted, but there could be risks.