There are some clear advantages to traveling with only a phone as your camera but a smartphone can’t do everything most dedicated cameras can, which for you, might not matter. Low Light – Smaller sensors and apertures aren’t as limiting when you’ve got more light. Far Away Stuff – More distance between a camera and what it’s shooting gives light particles more space to scatter. Video – All of the above, even more light, light, light. Your smartphone can replace a larger camera completely, depending on what you want to get from your travel photos.