After several days off building a streak of not running, I ran on Saturday and Sunday. Both times I didn't take my phone or even a stopwatch. I know where my turnaround is for my 5k route and I ran out and back on both days. I definitely prefer doing it this way with throwing in a run once a week with my phone to check progress and such. Although, my wife likes it when I run with my phone because she is always scared that I'm going to drop dead.