Nokia's, I've found so far, have the best boards per phone. I can't tell you how many boards it takes to make a pound but some of the older Nokia models had 2 boards per phone, both boards nicely plated, whereas the newer style phones had very little plating.
Some Nokia's that had 2 boards per phone.
Compared to some newer style flip phones, there's no comparison in size or gold plating to the older Nokia's, Audiovox's, or Sony Ericssons.
The gold plating under the buttons of some of the older models were almost 3x the size of the newer phone keypad button contacts. As with any electronics, I usually look for older models.
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