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It's official: Smartphones will need to have replaceable batteries by 2027
(www.androidauthority.com)
This is a most excellent place for technology news and articles.
There's abolutely no reason a smartphone couldn't be designed to last +6 years. My laptop is 7 years old and it still works perfectly fine - even has the original battery in it. My PC on the other hand is almost 15 years old and still in use.