I like Consumer Reports (
www.consumerreports.org) and use them in my beginning research on a good, better, best product. So far they have been correct.
So much of the technology is manufactured in the same plant and a different sticker put on for specific company distribution. Lots of items in this world are manufactured that way. One factory, one set of molds and only one die cast change for Seller.
Edited: The last paragraph is my theory!!!