Well, there are different devices. Active transmitting devices. And passive receiving devices. Ok. I do not say that only transmitting devices produce radiation. Also receiving devices produce them. But much less - at least in household environment.
The most important factor of the radiation of all devices -whether transmitting or receiving or whatever - is one thing:
The power of radiation drops with the distance. Not linear but in square ! This is important to know.
The problem with mobiles is: you hold them against your ear - in most cases. So the distance is very little.
You do not hold any other device - like TV - against your ear or your body.
And please remember: in case you use your phone in the car, the mobile switches to maximum power. Because it is shielded by the car. And you are inside with the phone. Whether on your ear or not.
I do not want to blame the mobiles - but if I can avoid some risk, I try to do it. So also with mobiles it is possible to reduce the risk - if there is any: hold it in distance of your body - which is possible with most of actual mobiles.
I see more and more young people holding the phone not to the ear, but in front of them: I like this and recommend it. No need for aluminium raincoat ....