Well I never! I recently moved from an £18 button phone to a basic smart phone as it was a last year model and only £39 from my provider ... now, I have rather been against using phones on the Camino - and I still am, except for emergency use, as I feel that by talking to people at home one is no longer in the experience .. but there you go ..
But a phone as a tool?
I have just installed the Google Translator app into it and it is utterly stunning!
I choose 'English - Spanish' and speak a sentence into it and the phone then speaks back in Spanish! And you don't have to be connected to the internet for it to work.
Now, although I do speak French and a little German I have found it impossible (too old I think, or too lazy) to retain Spanish - but now I can get the person to speak into my phone and hear what they are saying in English - and vice-versa.
Science fiction or what! And the app is free - result!!!
Buen Camino!