I had a Droid and a Droid 3. It felt like after a year of use it would start running slower and the battery wouldn't hold a fraction of a charge that it used to. After 18 months they were almost unusable (coincidentally that was about the time Verizon would offer me an upgrade). Now I have a OnePlus phone that I purchased two years ago. As far as I can tell it runs as well as day one. I'm not sure if the Motorola phones were crap or if it is a matter of forced obsolescence, but I have almost no desire to upgrade my phone.