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nailer

> Previously, Apple has used stainless steel for its high-end phones.

I saw that too. I thought Apple mainly used aluminium?

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Well, it's not Thermal Conductivity then.

I just looked it up.

  Stainless Steel   15 W/m-K
  Titanium          17 W/m-K
  Aluminum         210 W/m-K

Effectively, Stainless Steel & Titanium have the same thermal conductivity.

https://www.hardrok.com.au/thermal-activity-in-stainless-ste....

The issue here is users complaining that the phones get too hot to handle, which immediately eliminated conductivity. A thermal conductivity problem would've looked like the phone overheating without the outside getting too hot to handle. (picture the circuit board inside a thermos)

that's not necessarily true. Heat has to go somewhere eventually. It could be that the CPU is much hotter than the temperatures felt on the frame. but yea, if the cpu is 45 C and the frame is 40 C, you'd be right.

The interior has been aluminum, but the band around the outside has been stainless steel.

> Ceramic Shield front, Textured matte glass back and stainless steel design

https://support.apple.com/kb/SP875?viewlocale=en_US&locale=e...

Interesting. 13 mini is

> Ceramic Shield front, Glass back and aluminum (sic) design

https://support.apple.com/kb/SP847?locale=en_GB

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