https://techcrunch.com/2019/01/23/amazon-is-piloting-its-own-delivery-robot/

It was, of course, just a matter of time before Amazon deployed delivery robots. The company has had a robotics wing for a number of years now, though much of its public-facing side has been focused on warehouse logistics. Today, however, it took the wraps off Scout.

The six-wheeled robot looks a fair bit like a number of the delivery robots already being piloted on sidewalks all over the world. This one, however, was apparently developed in-house by Amazon. As the company notes, the electric system is the size of a beach cooler and cruises along at roughly a walking pace.