Is there any correlation between phone size and the amount of radiation emitted?
No. Many other phones will have the same transmitter chips. The power output of mobile phone transmitters is governed by regulations. The placement and design of the antenna might affect how much goes into your brain, but if a phone doesn't emit radiation, it won't work! If anything, potentially, a large phone might mean that the antenna ends up further away from your head which could mean a dramatic
reduction in the intensity of the radiation going through your head.
I have a co-worker who worries about this stuff and she sticks these radiation stickers on her phone, computer, etc..
Can I suggest the following test for the effectiveness of these stickers:
- Apply sticker to phone.
- Call someone.
- If they answer then I guarantee that the sticker is not significantly reducing the radiation emitted from your phone (unless the sticker somehow turns the radiation into magic fairies who carry your message for you).
Here is a more practical, free, scientific suggestion:
If you normally hold your phone 1/4" from your ear, try holding it 1/2" from your ear instead. This will reduce the intensity of radiation passing though your head by a factor of 4. Or hold it a whole inch away and reduce it by a factor of 16. Go look up the
inverse-square law on wikipedia. Or use a headset (wired, not bluetooth) and experience a tiny fraction of the radiation.
That is why climbing up an active radio transmitter mast can boil your cojones, but standing 30' away from it is perfectly safe.
Personally, I would avoid walking around with a phone pressed up to my ear for hours at a time, and I would definitely discourage young kids from doing so. This is partly because holding a radio transmitter so close will have
some warming effect on the neighbouring tissue and maybe, just maybe, that might have a negative effect over time... but mainly because it is very, very annoying and might lead to you walking in to things or turn into one of those rude prats who don't even stop yakking when they're at a shop checkout and think that they have the right to take calls in movie theatres.