Samsung Galaxy S 4 (GSM)
Top message: Weak body by Tofuchong
Replying to: Re: Weak body by techalum99
Re: Weak body
And yes - definately true about metal and glass. Not only that, but a phone with a metal backing usually doesn't support NCF becuase the signal is so weak it can't penetrate the metal. If you have a plastic back, you can get the SD card with integrated NFC, but thats not an option if it is metal backed.
Plus yes - its a great conductor and it attracts heat-cold as well much faster than plastic. I've had plastic and metal phones sitting side by side in direct sinlight, the metal phone stopped working and gave a warning that it was overheating, and the plastic phone was still nice and cool. (Metal phone was iPhone 4S, plastic phone was LG Optimus 7)