Old analog cell phones used about three times as much power, but the frequencies were lower and the antennas were held farther from the head. The old tower tran

Old analog cell phones used about three times as much power, but the frequencies were lower and the antennas were held farther from the head. The old tower transmitters used more power but were much less densely distributed than today and especially tomorrow. Assuming microwaves do have the potential to cause some kind of damage (beyond simple heating with absorption), the power level would be only one factor and possibly not the most important one.