A pulse oximeter system for determining blood oxygen saturation of a tissue site of a patient, the system comprising: a disposable noninvasive sensor assembly and a reusable transmitter assembly, wherein the disposable noninvasive sensor assembly is configured to collect physiological data from a patient, the physiological data indicative of physiological condition of the patient, the disposable noninvasive sensor assembly comprising: a dock comprising a flexible circuit comprising a plurality of first electrical contacts supported by a corresponding plurality of curved members; a strap configured to wrap around a wrist of the patient and secure the disposable noninvasive sensor assembly to the patient; a sensor element configured to couple with a fingertip of the patient; a cable coupling the sensor element to the dock; and a battery; and the reusable transmitter assembly is configured to removably couple with the dock and receive the physiological data of the patient from the disposable noninvasive sensor assembly, the reusable transmitter assembly comprising: a plurality of second electrical contacts configured to engage the plurality of first electrical contacts and exert a downward force on the plurality of curved members responding to the securing of the reusable transmitter assembly with the dock, the downward force causing a plurality of tips of the flexible circuit to move distally away from the plurality of first electrical contacts; a processor; and a wireless communication module configured to establish a wireless communication with a patient monitor; and the dock, the strap, the sensor element, and the cable of the disposable noninvasive sensor assembly are integrated in a unitary body. a disposable noninvasive sensor assembly and a reusable transmitter assembly, wherein the disposable noninvasive sensor assembly is configured to collect physiological data from a patient, the physiological data indicative of physiological condition of the patient, the disposable noninvasive sensor assembly comprising: a dock comprising a flexible circuit comprising a plurality of first electrical contacts supported by a corresponding plurality of curved members; a strap configured to wrap around a wrist of the patient and secure the disposable noninvasive sensor assembly to the patient; a sensor element configured to couple with a fingertip of the patient; a cable coupling the sensor element to the dock; and a battery; and a dock comprising a flexible circuit comprising a plurality of first electrical contacts supported by a corresponding plurality of curved members; a strap configured to wrap around a wrist of the patient and secure the disposable noninvasive sensor assembly to the patient; a sensor element configured to couple with a fingertip of the patient; a cable coupling the sensor element to the dock; and a battery; and the reusable transmitter assembly is configured to removably couple with the dock and receive the physiological data of the patient from the disposable noninvasive sensor assembly, the reusable transmitter assembly comprising: a plurality of second electrical contacts configured to engage the plurality of first electrical contacts and exert a downward force on the plurality of curved members responding to the securing of the reusable transmitter assembly with the dock, the downward force causing a plurality of tips of the flexible circuit to move distally away from the plurality of first electrical contacts; a processor; and a wireless communication module configured to establish a wireless communication with a patient monitor; and a plurality of second electrical contacts configured to engage the plurality of first electrical contacts and exert a downward force on the plurality of curved members responding to the securing of the reusable transmitter assembly with the dock, the downward force causing a plurality of tips of the flexible circuit to move distally away from the plurality of first electrical contacts; a processor; and a wireless communication module configured to establish a wireless communication with a patient monitor; and the dock, the strap, the sensor element, and the cable of the disposable noninvasive sensor assembly are integrated in a unitary body.