
Built For Athletes Who Already Know What Their Last Strap Got Wrong
ECG-Electrode Sensing
Two skin electrodes read the heart's electrical signal directly. Holds plus or minus 1 BPM through interval surges that throw wrist optical off.
Dual ANT+ And BLE Broadcasting
ANT+ to your Garmin Edge or Wahoo Bolt and BLE to your phone running Strava or Zwift. Both feeds at the same time, no toggling mid-set.
Sealed, User-Swappable CR2032
300 hours a cell, swapped in 30 seconds with a coin. The pod stays sealed after every swap, so sweat never corrodes the contacts like cheap straps do.
Grip-Dot Anti-Chafe Strap
Silicone grip dots hold the IP67 strap in place through sweat instead of sliding down. Soft knit fabric means no raw skin, even under a sports bra.
What our 17,000+ Customers say
Based On Real and Honest Experiences
Frequently Asked Questions
How accurate is it really during interval surges?
How accurate is it really during interval surges?
Plus or minus 1 BPM is the published tolerance, matching the Polar H10's spec. Two ECG electrodes read the heart's electrical signal directly, so it tracks zone changes faster than wrist optical, which lags 5-10 seconds on surges.
Can I run ANT+ to my Garmin Edge and BLE to my phone at the same time?
Can I run ANT+ to my Garmin Edge and BLE to my phone at the same time?
Yes. The pod broadcasts both protocols at the same time. Pair ANT+ to your Edge or Wahoo Bolt and BLE to Strava, Zwift, or Peloton on your phone. Both feeds run together with no toggling mid-ride.
How long does the CR2032 actually last under heavy training?
How long does the CR2032 actually last under heavy training?
About 300 hours per cell, which works out to a full season at one hour a day. When it reads low, pop the pod off the strap with a coin and drop in a fresh CR2032. A new cell costs about $2 at any drugstore.
Is it really IP67? Can I rinse it after a sweaty WOD?
Is it really IP67? Can I rinse it after a sweaty WOD?
Yes. IP67 covers full sweat, rain, and a tap rinse. The knit strap is wash-through, and the pod stays sealed against humidity and sweat-soaked CrossFit days. Not rated for pool swimming or full submersion.
Do I have to wet the electrodes every single time?
Do I have to wet the electrodes every single time?
Yes, a 2-second splash under the faucet before you strap in. Skip it and contact gets patchy, which is what causes most erratic readings, not the sensor itself.
Will it pair with Strava, Zwift, Wahoo Fitness, Polar Beat, and Garmin Connect?
Will it pair with Strava, Zwift, Wahoo Fitness, Polar Beat, and Garmin Connect?
Yes, all five, plus Peloton, Concept2, Nordic Treadmill, Bowflex, Apple Health, MyFitnessPal, TrainerRoad, and TrainingPeaks. Pair through each app's HR menu, not your phone's Bluetooth settings, which is the step most people miss.
Will the 65-95 cm strap fit me, and will it chafe on a long run?
Will the 65-95 cm strap fit me, and will it chafe on a long run?
The knit strap adjusts from 65 to 95 cm and fits most adult chest sizes. Sarah in CA wore it through a 20-mile marathon training run with no chafing. Snug it under the pectorals so it does not ride up during arm swings.
How is this different from a Polar H10 or a Garmin HRM-Pro Plus?
How is this different from a Polar H10 or a Garmin HRM-Pro Plus?
Same plus or minus 1 BPM accuracy as the H10, dual ANT+ and BLE like the HRM-Pro, but with a swappable CR2032 instead of welded electronics. H10 electrodes are rated 12-18 months. Garmin straps die at 6-15 in user forums.