Circular (2018) by Circular

Record 001 · Diagnostics · 2018

50%18.01.X

Circular

Circular

“A smart ring that treats recovery as a daily readout.”

Circular put a thin ring on the finger and pulled sleep, HRV, and recovery into a continuous loop. It is a European entry in the ring-as-biomarker category Oura opened.

Filed as a wearable that turns physiology into a number you can act on.

Pre-seed & seed. Filed from the Top Tier Impact landscape.

Official site
  • Smart ring sensors
  • Recovery scoring
  • Sleep staging

The ring as a vital.