https://blog.wongcw.com/2021/07/17/%e7%a0%94%e7%a9%b6%e7%99%bc%e7%8f%beiphone-12%e7%9a%84%e6%8a%98%e8%88%8a%e7%8e%87%e4%bd%8e%e6%96%bciphone-11/
研究發現iPhone 12的折舊率低於iPhone 11