I was the Lead Research Engineer at Jawbone who led development of the first consumer wearable bioimpedance (BI) sensor that detects heart rate (HR), respiration rate (RR) and galvanic skin response at the wrist. The sensor is currently in millions of Jawbone’s UP3/UP4 health trackers.

Selection of Media Mentions:

“Jawbone’s New Wearable, the UP3, is Ambitious in all the Right Places” (Wired)

“Jawbone's new Up3 is its most advanced fitness tracker ever” (The Verge)

“Jawbone’s Up3 fitness device monitors heart rate to track sleep cycles” (The Guardian)

“Jawbone Up3 promises more accurate sleep-tracking data” (BBC)


  • Granted 5 US patents for novel signal processing algorithms and bioimpedance system design

  • Invented HR/RR extraction algorithms that use a priori knowledge to extract vitals from ultra-low SNR signals

  • Designed low-noise BI sensor that detects microvolt vital signals across a diverse population

  • Validated the BI sensor across ~3,600 hours of data from users at Jawbone, Stanford, Univ. of Pittsburgh, etc

  • Oversaw manufacturing of BI system in China: set-up assembly line specifications and designed tests