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Vodafone Finds Brits Keep Mobile Phones for 4 Years Instead of 2
(www.ispreview.co.uk)
This is a most excellent place for technology news and articles.
I'm way under 70, and I'm using an S10e I brought in 2019. So four years.
Updates stopped coming in March. But I've no plans to replace the phone yet. Since this one works fine, and very few phones released since have the features that matter to me.