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by huijzer 978 days ago
What's wrong with aluminium?
2 comments

You can't have wireless charging with a metal chassis AFAIK. Whether you value wireless charging is another question.
metal blocks RF
The iPhone 7 and earlier all had an aluminium back no issue. Changed to glass from the 8/X onwards for wireless charging.
iPhone 7 placed the antenna on the rim, the area where there is a bit of plastic. For years iPhone wireless & wifi connections are somewhat weaker than other phones, I suspect it's because the metal back.

Wireless charging is also RF btw.