I think "onn" is just Walmart's "store brand" for generic electronics[1]. Kind of like "Insignia" and BestBuy. The design and manufacturing is all outsourced and these are usually quite crappy as one would expect.
> Walmart is Onn’s parent company. Onn is Walmart’s generic brand electronics label, and Onn products, including Onn TVs, are only available in Walmart stores.
Regardless, the last time I went into a Wal-Mart where my parents live, it wasn't just that they were prioritizing the onn brand stuff: it was literally all they had. Reliable third-party brands like Anker weren't even on the shelves anymore.
I have a hunch this might be Walmart's finely tuned supply chain figuring out that Onn is what sells best at that location so they overstock that particular store with them.
Last time I was in Walmart (2 days ago) I picked up a SanDisk SD card specifically because I've had good luck with them. All the other brands were there and Onn was just the stuff on the bottom shelves.
> Walmart is Onn’s parent company. Onn is Walmart’s generic brand electronics label, and Onn products, including Onn TVs, are only available in Walmart stores.
[1] https://sycamorenet.com/blog/who-makes-onn-tv/