They're both extremely similar; you really can't go wrong for <$25. I actually have 3 of the cheap one now, only 1 (the initial order) of the more expensive one. They're functionally identical for my usage; and it's a huge ergonomics win no matter what.
Also, if you have a desktop mic, buy a microphone arm for it; is similarly fantastic price-vs-value proposition (though monitor arm is massively more useful upgrade just due to how much you use it).
I’ve used amazon basics single arm wall mounts for the last 3 years, and dual arm deskmount for the last 2 years. They are pretty good quality, I’ve had no reason to look to replace them with another brand.
edit: apparently I have the premium version. Not sure they used to be called premium. The spring mechanism counterweight makes adjustments to my 27 and 24 inch monitors seemless.
https://www.amazon.com/gp/product/B07K9MQTB1/ and https://www.amazon.com/gp/product/B07T3KCQ94/
They're both extremely similar; you really can't go wrong for <$25. I actually have 3 of the cheap one now, only 1 (the initial order) of the more expensive one. They're functionally identical for my usage; and it's a huge ergonomics win no matter what.
Also, if you have a desktop mic, buy a microphone arm for it; is similarly fantastic price-vs-value proposition (though monitor arm is massively more useful upgrade just due to how much you use it).