VII. CONCLUSION
This paper describes a cuffless differential blood pressure estimation technique using two mobiles. Further as an extension, we also described a single mobile-based technique showing the feasibility of measuring blood pressure using only one smart phone. We then discussed the mathematical formulations used to estimate the systolic and diastolic pressure. By obtaining accuracies between 95–100%,we showed with this technique that ubiquitous mobile phones could be used by people to measure blood pressure. This study could very well be used for normal and nonpathological cases.