A Deeper Dive into Swimsense™

Want to learn more about Swimsense™? Well you’re not alone. Since our President, John Mix, first blogged about the device last week, we have received many calls and emails inquiring about how to use the device. So I wanted to give everyone a little deeper run-through:


  • Swimming is behind in performance monitoring when compared to other sports, especially cycling and running. The use of high-end technology is all around us, so why not apply it to our sport?!
  • Currently there is no easy way to track your swim training. By having a constant monitor, we would be able to track and reveal new information about our performance. New information that would improve and “make sense of your swim”.

Solution = Swimsense

    Swimsense uses motion sensors such as accelerometers and magnetometers to collect data in your workout…similar technology that is used on your iPhone or Wii remote. Using sophisticated algorithms, the device tracks a whole host of metrics including stroke type, distance, pace, calories burned, stroke count, distance per stroke, and efficiency scores.

Probably the best way to describe the Swimsense is through an example. I am at the pool ready to swim. I strap the watch on, jump in the pool, and press the “Start Workout” button. Once I am done with my warmup, 500 total yards, I press the “interval” button. I look at my watch and it already knows:

  • I swam 500 yards (20 lengths in a 25 yard pool) in 6:03.5
  • My split time for each 25
  • I had an average pace of 1:12.7 per 100
  • My second to last 50 was Backstroke and the rest was Freestyle
  • My stroke count for each 25, averaging 8 strokes per length
  • I had an average distance per stroke of 3yds
  • My average stroke rate was 61 strokes/minute
  • I burned 132 calories
  • And that’s just warmup!!

Swimsense continues to track my data throughout the practice, storing everything on the watch. I can then view my results directly on the watch or view the data on the Swimsense online portal via my computer. The watch holds up to 14 different workouts, more than enough to last me a full week of training.

To view the information online, I attach the watch to my charging cradle (included), which connects to my MAC via USB (yes for you PC people, it is compatible with your computers as well). The workouts get uploaded to the Swimsense viewer, allowing me to graphically see my progress. Having the ability to go back and review my workouts lets me understand stroke rates over time, see inconsistencies in my training, view rest time versus swim time, set goals, and uncover other hidden information that I wouldn’t see otherwise.

Stay tuned over the next few weeks as we reveal more about the Swimsense and how to use the online portal for reviewing workouts and setting goals.

- Mark