I use for photo editing, gaming, and occasionally video streaming.
I use my iPad on a daily basis for getting work done with my Logitech Keys-to-Go keyboard or just playing Clash Royale on the couch. It has almost 100% replaced my computer with the exception of Lightroom 5.
I named my iPhone "Oxygen" because I simply cannot live without it. It's constantly on my body and I use it as my planner, portable computer, wallet, and means of communication.
I use for streaming, playing games, and falling asleep to the sound of rain.
I love using this watch for notifications while at work, but it also is my activity tracker for keeping myself aware of how active (or not active) I'm being throughout the day.