The present invention includes an apparatus and method for blood pressure trend determination of a subject comprising: a housing； at least one of a photoplethysmographic (PPG) sensor or a magnetic sensor in or on the housing and adapted to be worn by the subject, wherein the PPG/magnetic sensor uses a pulse oximeter to measure changes in skin light absorption； a processor for receiving a signal from the at least one of the PPG sensor or the magnetic sensor measurements, wherein the processor comprises a non-transitory computer readable medium having instruction stored thereon, wherein the instructions, when executed by the processor, cause the processor to: measure a trend analysis results to determine the blood pressure trend over a time period； and an input/output device that at least one of stores, displays, or transmits blood pressure trend of the subject.本發明包括用於測定個體之血壓趨勢之設備及方法，該設備包含：殼體；光體積變化描記(PPG)感測器或磁感測器中之至少一者，其在該殼體中或上且經調適成由該個體穿戴，其中該PPG/磁感測器使用脈博血氧定量計以量測皮膚光吸收中之變化；處理器，用於自該等PPG感測器或該等磁感測器量測中之該至少一者接收信號，其中該處理器包含具有儲存於其上之指令的非暫時性電腦可讀媒體，其中當由該處理器執行該等指令時，使得該處理器：量測趨勢分析結果以測定一時間段內之該血壓趨勢；以及輸入/輸出裝置，其中之至少一者儲存、顯示或傳輸該個體之血壓趨勢。
