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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.
As someone who just had an Galaxy S7 or something for 6.5 years this all sounds way overkill. I'd probably disable everything possible to get even more battery life out of it.
If someone uses this phone for gaming or working or for documenting/photographing a trip or something, then its maybe worth it but for everyday use its just overkill imo