RingConn bilateral PPG study published

A joint research team from Ninenovo (parent company of RingConn), Professor Chen Cheng (swimmer)'s team at Shanghai Jiao Tong University, and Mianyang Central Hospital published a study in npj Digital Medicine, a Nature Portfolio journal, titled 'Large-scale bilateral cardiovascular monitoring via wearable rings.' The study analyzed 97,559 valid ring-PPG samples from 1,810 participants and 7,478 paired blood pressure measurements, establishing what the researchers describe as the first large-scale bilateral ring-PPG benchmark. The findings showed that combining synchronized PPG signals from both hands substantially improves heart rate estimation, reducing mean absolute error from 10.65 bpm to 3.21 bpm, and further to 2.59 bpm under certain conditions. Improvements in blood pressure estimation were more modest, with systolic MAE improving from 13.81 to 12.36 mmHg and diastolic from 9.27 to 8.21 mmHg. The study also highlighted bilateral signal differences as a potential indicator of measurement reliability. For Ninenovo and its flagship brand RingConn, this publication reinforces their commitment to advancing wearable health technology and data science.