I picked up the Echo Egi-2300 and Ryobi RYI2322 used. I picked up the Echo around April 2023 and the Ryobi in February 2024. They appear to be the unit just with different exterior plastics. www.echo-usa.c... www.ryobitools...
They are the same. I imagine some of the warning labels have the same part number on them. Ryobi used to make stuff for Craftsman, same tool, different color. Only big difference is the color and price tag.
I’ve worked quite a bit of product development and some materials, specs, small design differences exist but that was all in the automotive world. I can’t imagine similar differences with outdoor power equipment.