My 4s has 8 GB total, only 1.7 available, and I use it for pictures and an occasional video, so need some open space. My wife's has 16 GB, so maybe I'll play with that one. She hardly uses it anyway.
One other suggestion. If you have an iPad, download the app on the iPad, and use it to create your "saved" maps. Since you will have registered on MyViewRanger it will know who you are, and you can share maps. No extra charge for two versions (including maps if you buy them). Just easier to create them on the iPad due to display size.
