If you are already familiar with TomTom you can get the app for Android. The beauty of it is it has its own map base built in and doesn't rely on the Internet cell towers. That means it will work in the wilderness. It got me through Canada on my way to Alaska where I had my cell connection turned off. It is pretty much the same as a standalone TomTom unit. I have it on my iPhone and iPad. Map and data updates come quarterly. It will however work with the Internet in search for things that are not in their stored database.