Phone is smaller, and does the same amount as an tablet. depending on the specs. Phone can be used anywhere more as it goes in your pocket. Tablet are bigger, good if you watching an movie! keyboard is easy to see and read. able to use it to share images with people and if you googling
I frequently use my Samsung J7 whenever I am not at home. It has a bigger screen than the first Samsung that I owned. But when I am at home, I use the tablet more often because of the larger screen that it is more convenient to read. However, I have to admit that the phone is more popular because of the portability that you can access the internet wherever you are, as long as there is wifi. I have a pocket wifi though so as long as I am not in the boondocks, I have an internet connection.
I enjoy using my phone because I can use anywhere. However, I have a bluetooth keyboard so it helps me type my essays when I am not feeling like using my laptop and my phone is too small.
Phone, since it is more portable and convenient to use even when walking or when passing the time during a commute. It is also easier for communication purposes.