Do You Need 'Smart' Swim Goggles?
by Beth Skwarecki from Lifehacker on (#5P3EF)
There was a time, before smartwatches, when I briefly got really into swimming. I learned to read the pace clock at the pool at my local Y, and I would count strokes in my head to keep tabs on whether I was using good, efficient form. I brought my workouts to the pool on index cards inside ziploc baggies.