Actually, the initial title of this work was ‘6 must have mobile gadgets for graduate students’, but it turns out they really aren’t so. Thus, I made some generalizations. To be honest, I should just call them as my favorite gadgets that I enjoyed using during my two years of grad studies. With the end of grad school reaching, I am planning to create my own dedicated website that discusses hobbies, businesses, and technology. Meanwhile, please have a look at my recent work about my favorite gadgets which I created for fun.