Even though your proposition is outside of the scope of typical cell phone use, I would likely live just as long as I would have lived without it, given that its radiation is A) non-ionizing and B) not focused.
As an example, you could spend 14 hours a day in the sun to no ill effect, but only about two minutes with a magnifying glass focusing sun rays onto your forehead.
As an example, you could spend 14 hours a day in the sun to no ill effect, but only about two minutes with a magnifying glass focusing sun rays onto your forehead.