Make any treadmill smart for more accurate and optimized training.


No need to buy a brand-new treadmill to start Zwifting. There’s a whole new way to run on Zwift, thanks to the Runn Smart Treadmill Sensor from North Pole Engineering.

The Runn sensor easily installs onto the side rail of most treadmills. Using an optical speed sensor to track belt rotation speed, Runn broadcasts data directly back to Zwift via BLE and ANT+.

What does this mean? You get the most accurate speed, distance, incline, and cadence data while running on Zwift. Helping you level up every time you train.

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  • Connects to Zwift via BLE and ANT+ for quick pairing to all devices.
  • Measures and broadcasts speed, incline, and cadence.
  • Uses a USB rechargeable battery.
  • 20-hour battery life.
  • Cradle easily installs on most treadmills using adhesive strips (included in box).
  • Comes with approximately 20 belt sensor stickers.
  • Includes a 2-year limited warranty.
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Shipping & Returns


  • Orders placed before 14:00 GMT typically ship the same day.
  • Standard shipping is 1-5 business days.
  • Ships locally from our UK warehouse.


  • We offer a 30-day return policy on all products.
  • Return freight is not included.
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