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Nearly 500 smartphone brands have left the market since 2017
(www.techspot.com)
This is a most excellent place for technology news and articles.
We are heading towards a future of Apple, Samsung, and Google, with even the latter two struggling to stay afloat.
And to be fair, Google deserves a lot of the blame for this happening.
Huawei and Honor can both survive purely on domestic sales before you even worry about ROW.
No idea why you think there are only three brands, or why you think the US is the only market that matters (it's fairly obvious you are US based)