Oh Sparky I have dozens upon dozens of knockoff guitars. All of them I bought really cheap and then use them to play a bit and then I sell them for more than I paid for them. Because I can.
See again a 10 year old knock off guitar still plays music just like it did the first day off the line. In fact it can actually get a better sound over time.
Temp tech smartphones do not. Because they are designed that way.
You really don't pay attention to what was written, do you? Seven and a half years of continuous phone use, and still going strong on my original iPhone AS A PHONE, now still being used as an iPod touch, retired only because the phone technology advanced beyond its capabilities. . . And it's still on its original battery.