Go Mobile iPhone : Do I need Internet access whilst overseas ?

Ewins Registered Users Posts: 2
New Traveler
I am travelling to USA / Canada for two Months and apart from the upgrade cost for either 2 months or a year do I need access to Data ?

I will be turning Data Roaming off whilst travelling that's all.

I will have wifi generally each day where we are staying but due to data costs will be turning International roaming off.

Thanks in advance.