Too many data points lacking to consider a suggestion :) As most said, unless it's a surprise gift, let her decide. If it is a surprise, try to get her feedba

Too many data points lacking to consider a suggestion :) As most said, unless it's a surprise gift, let her decide. If it is a surprise, try to get her feedback in more subtle ways (I'm pretty bad at that, but I guess asking about her girl friend's phones or something). In general, it depends on your money availability, general use case, IT ecosystem at your house or where she'll be using it, etc. If money is no objection, she won't be using it for programming-related stuff or obscure hobbies, can afford apps, etc. or you have a heavy Apple ecosystem, then the iPhone is probably the best bet. If money is a concern, then it can be either an Android-based system or Windows Phone. For the very low-end smartphones, I recommend Windows Phone, some Android smartphones are terribly underpowered and deliver an awful user experience. Personally, I have an Android device because it's the one that fits my needs the most (but I do use it for programming), and my country is 90% android smartphones so I'll have every app available.