This is a prospective, multi-center, multi-phase, unblinded, non-randomized. self-controlled, observational study. All data analyses specified below will be calculated and summarized by each of SpO2 sensors under test. Demographics and baseline characteristics, including sex assigned at birth, age, ethnicity, race, baseline height, baseline weight, BMI, skin pigmentation and sensor application site measurements will be summarized with descriptive statistics using the analysis set.
