Hello maxi031,
oh, sorry, but my english....
I dont know, what you want to hear from me ?
Do you mean wich technical characteristics must a mobile have to get more privacy ? Sorry, Im not an expert for those questions... but If you mean this, ok, I would say (I think), it has to be a basic phone without android or anything else... and important without any apps !!
the problems are in the most time in my opinion the apps !! you need an "unlocked GSM Triband Mobile Phone"....
For an example the Samsung C3595 has no android or apps, ok, this phone has internet and shortcuts for faccebukk, twidder, etc. but you can turn it off.. more privacy you have in my opinion at the old phones like nokia 3310... but who want to use these old phones ? I dont want to use them. The problem is the radiation levels... some old mobile phones have very high SAR-values... here are an overview table:
http://cellphones.procon.org/view.resource.php?resourceID=003054
The samsung C3595 has 0.23 SAR, some Blackberrys or older iphone hast a value higher
>1.xx
thats no good !
My very old Samsung SGH D500 has for an other example only SAR 0.31. Very good, its a triband phone with GSM1800, GSM1900, GSM900. No apps, no other shortcuts for faccebukk like the C3595, etc. ... in this case the best phone. I used it a very long time, its really a good phone! But the 1.3 MP camera is very oldstyle
and the phone has only a memory 96 MB
but anyway, it still a good phone !
I bought the C3595, because you can insert another memory card with 8 GB for music, it has also bluetooth for car radio (I didnt tried out, yet). Standby/Talk Time: 300 hours and 10 hours
Ok, I hope, I coud help you a little bit
kind regards astro