We collected data from 50 different phones. We laid each phone down in front of the RF meter and then measured the maximum electric field (Volts/meter) being emitted by the phone when it (a) made a call and (b) sent a text message. We then sorted the data based on (1) maker of the phone , (2) service provider and (3) whether it was a smart phone or a basic phone. The smart phones are highlighted in yellow and the highest electric fields in each category are in red.