The MAX30102 oximeter was characterized by testing different sampling rates, LED currents, pulse widths and resolutions to find the setting which consumes the least power while still yielding valuable results. During the tests, a sampling frequency of 100Hz at an averaging setting of 2 with 69 μs pulse width was found to be a good setting for measurements on the finger. The LED current was chosen to be 6.4mA as the best trade-off between power consumption and signal quality.