Validate your training

The world's first wearable lactate threshold sensor.

Compatible with ANT+ and Bluetooth
  • simple endurance testing
  • accurate personalized training zones
  • repeatable performance monitoring
  • Test.
  • Train.
  • Get insight.
Laptop and devices
Accurate training zones

Test every 4-6 weeks. Training zones change as you progress through your endurance training. BSXinsight is the only option to give you accurate zones based on your current biosignals without having to repeatedly go to a sports science lab and retest.

  • Heart Rate
  • Power
  • Pace
Custom training plans

Custom training plans based on your biosignals and backed by one of the leading coaches in the endurance world.

  • 5k
  • 10k
  • Half Marathon
  • Marathon
  • Sprint Triathlon
  • Olympic Distance
  • Half Ironman
  • Ironman
Get data that verifies your progress

Stop trying to “feel” whether you’re pushing too hard or leaving too much on the road, and stick with the science. Industry experts predict performace increases of up to 25% with BSXinsight, proving that there’s never been a more powerful way to train.

learn more
Works with your favorite devices
  • Garmin
  • Wahoo fitness
learn more
  • Kickr device
  • Wahoo device
  • Garmin device
Portrait of Rene Corella

“ It’s a product I highly recommend to anyone who is ready to take it to the next level. ”

Rene Corella
IRT Racing Pro Cyclist
Free your mind to focus on the miles ahead
get it now