Google officially "shelved" Project Ara in September 2016. Despite a briefly revived developer edition, the project never reached the mass market due to technical hurdles like the bulkiness of the modules and the complexity of making them talk to each other reliably.
It wasn't just a phone; it was a lego-like ecosystem designed to reduce e-waste and give users total control. Can You Buy One Today?
Born in Google’s ATAP (Advanced Technology and Projects) lab, was the vision of a "forever phone." It featured an aluminum "endoskeleton" where you could snap in modules—cameras, speakers, batteries, or even specialized medical sensors—using electro-permanent magnets.
Originally, Google aimed for a $50 "grayphone" starter kit, but that never materialized for consumers. Why Google Canceled Project Ara : r/Android