I have two electronic items that are my favorites and I can not choose which is the "best" between both. 

My MP3 that accompanies me every day on each trip to university or do paperwork, I have it about 3 years ago, it is very useful to listen to music, that way I do not steal my cell phone in the bus and save battery of this same one. I like to download discs from my favorite bands and listen to them completely, so I prefer to use it every day. I only regret that every day your rechargeable battery lasts less, when it no longer works or if you buy another. My new Smartphone I renewed it 4 months ago because the previous one had an accident. This new cell phone is much better in several aspects, it has a great capacity. It is very difficult not to use it every day, but sometimes I stay at home and nothing terrible happens. I use it for a lot of things, tasks, communicate with my family and friends, to review social networks, play Pokemon Go and most of all I use your camera that is good for photographing various things from day to day, for example my cats. It's hard to live without it, you can anyway.