aibo, Sony's robot in the shape of a puppy, is available from today (September 18, 2018) for purchase in the US. This event is being dubbed the "First Litter" release of the mechanical pets. Sony claims that aibo can learn to recognize up to 100 faces and develops a unique personality based on how it is treated.
https://www.notebookcheck.net/Limited-First-Litter-edition-of-Sony-s-robotic-dog-aibo-released-in-US.333218.0.html