Good advice on the tools of the trade, but I'm curious because it seems like all of the above (save for the pen and portable charger) are things that your smartphone can handle. I've made scratch tracks of songs I'm working on as videos and haven't had any issues with the quality of playback (for a scratch track, not a final). Also, I think you meant to say "churning" when you said "the digital age is turning out products". "Turning out" is a term that refers to a pimp successfully getting a new woman to be a sex worker for him. It also means to party hard.