Millie wants to know what the best mobile phone is. Rich says that the four best are the iPhone, the Samsung Galaxy S10, the One Plus, and the Google Pixel 3. Google's Pixel 3 has the best camera for all situations, but that's about where it ends. The iPhone is the best all around, followed by the Samsung Galaxy S10. More likely it comes down to what she really wants to do with it, and Rich recommends asking her friends and family what they have. Get what they have and she can always ask for help or interact with them easily.