The third draft of "rules" for the Environment-Friendly Use Period of Electronic Information Products (EIPs) quotes mobile phones as 20 years.
This has moved on from 5 years in the first draft and 10 years in the second. So why?
5 years looks too short, 10 years was OK, but 20 years probably too long?
This doubtless comes down to the impression this gives to potential customers. Nokia is on the committee drafting the standard and they, and other phone manufacturers, would not want to give the impression that they will fail after 10 years, even though the reality is that most will be scrapped sooner.
However, mobile phones are often refurbished for second users and so the actual useful life could be more than 10 years.
Directive Decoder