Amazon met with startups about investing, then launched competing products 6 years ago
Throwaway to avoid being ID'd.
I was on the team that was peripherally involved in building the Amazon Dash collection of products. The scale idea has been floating around within the company since 2015/2016. It takes long to do this at scale and a cost-effective point.
There were also other similar products that were scrapped because there was no way we could sell them at a reasonable price.