Here’s how the SAM test works (i.e doesn’t work):

The head of a plastic dummy is filled with liquid
and subjected to 6 minutes of phone usage.
If the liquid heats up by less than one degree then it is
considered safe. But you see, the test is flawed
because SAM’s head is based on
a 100kg, six-foot-tall,adult male military recruit,
plus you know, PLASTIC!
Does that describe you? We didn’t think so.
Also, how often are you using your phone?
We’re going to take a stab in the dark and say
a whole lot longer than 6 minutes.
Read more about the fraudulent testing of SAM here