Abstract: A method, system, apparatus, and/or device for adjusting a power consumption level of a device. The method, system, apparatus, and/or device may include: a first sensor interface, a second sensor interface, and a processing device coupled to the first sensor interface and the second sensor interface. The processing device may: measure a first physiological measurement via the first sensor interface within a first period of time; measure a second physiological measurement via the second sensor interface within the first period of time; adjust a power consumption level of the apparatus in view of at least one of the first physiological measurement or the second physiological measurement; measure the physiological measurement via the first sensor interface at the adjusted power consumption level within a second period of time; and measure a second physiological measurement via the second sensor interface at the adjusted power consumption level within the second period of time.

Abstract: Methods, systems, apparatuses, and/or devices for taking optical measurements. The methods, systems, apparatuses, and/or devices may include: emitting a first wavelength of light into the body; receiving light from a depth below a surface of the body corresponding to blood or sub-epidermis tissue of the body; and determining a physiological condition of the body when a current amount of light reflected or backscattered the blood or the sub-epidermis tissue and by the received by the optical sensor is different than a previous amount of light reflected or backscattered the blood or the sub-epidermis tissue and by the received by the optical sensor.

Abstract: An electronic device is described herein that may include various components, including a band, a physiological sensor, a feedback sensor, a processor, a display, or a power source. The band may be shaped to fit around at least a portion of a body part of a user. The physiological sensor may include two separated by a fixed distance such that at least a portion of a signal transmitted by a first sensor is transmitted through a muscular-walled tube of the body part before being received by a second sensor. The processor may be operable to determine a physiological condition based on the signal received by the second physiological sensor. The physiological sensor may be embedded in the band. The band may be comprised of a flexible material. The feedback sensor may measure a pressure at which the band is held against the body part.

Abstract: A method, system, apparatus, and/or device for adjusting a power consumption level of a device. The method, system, apparatus, and/or device may include: a first sensor interface, a second sensor interface, and a processing device coupled to the first sensor interface and the second sensor interface. The processing device may: measure a first physiological measurement via the first sensor interface within a first period of time; measure a second physiological measurement via the second sensor interface within the first period of time; adjust a power consumption level of the apparatus in view of at least one of the first physiological measurement or the second physiological measurement; measure the physiological measurement via the first sensor interface at the adjusted power consumption level within a second period of time; and measure a second physiological measurement via the second sensor interface at the adjusted power consumption level within the second period of time.

Abstract: Described herein are apparatuses and methods for measuring a hydration condition with a wearable device. The wearable device may include a housing, a flume integrated into the housing, and a sensor array. The housing may include a perimeter wall disposed around a perimeter of the housing between a top wall and a bottom wall, where the top wall, bottom wall, and perimeter wall form an inner cavity. The flume may be disposed in the inner cavity, where a first end of the flume is disposed at the bottom wall and a second end of the flume is disposed at the top wall. The sensor array may include a first vapor pressure sensor located within the flume at a first location and a second vapor pressure sensor located within the flume at a second location.

Abstract: A method, system, apparatus, and/or device for adjusting a power consumption level of a device. The method, system, apparatus, and/or device may include: a first sensor interface, a second sensor interface, and a processing device coupled to the first sensor interface and the second sensor interface. The processing device may: measure a first physiological measurement via the first sensor interface within a first period of time; measure a second physiological measurement via the second sensor interface within the first period of time; adjust a power consumption level of the apparatus in view of at least one of the first physiological measurement or the second physiological measurement; measure the physiological measurement via the first sensor interface at the adjusted power consumption level within a second period of time; and measure a second physiological measurement via the second sensor interface at the adjusted power consumption level within the second period of time.

Abstract: A method and a device to determine a hydration condition is disclosed. The wearable device may have a top wall, a bottom wall, and a perimeter wall that form an inner cavity. The external surface of the bottom wall may have a projection and an inner surface of the bottom wall may have a channel. A circuit board may have a first portion in the channel, a second portion that extends through a first side wall of the channel to a first recess in the external surface of the bottom wall, and a third portion that extends through a second side wall of the channel to a second recess in the external surface of the bottom wall. A first impedance pad may be on the second portion in the first recess and a second impedance pad may be on the third portion in the second recess.

Abstract: Methods, systems, apparatuses, and/or devices for taking optical measurements. The methods, systems, apparatuses, and/or devices may include: emitting a first wavelength of light into the body; receiving light from a depth below a surface of the body corresponding to blood or sub-epidermis tissue of the body; and determining a physiological condition of the body when a current amount of light reflected or backscattered the blood or the sub-epidermis tissue and by the received by the optical sensor is different than a previous amount of light reflected or backscattered the blood or the sub-epidermis tissue and by the received by the optical sensor.

Abstract: A method, system, or apparatus for determining a hydration condition of a user. The apparatus includes a housing. The apparatus further includes a light source disposed at an edge of the housing in a first position, wherein the light source, when affixed to a surface of a body, is operable to emit light into the body from the first position. The apparatus further includes an optical sensor disposed at the edge of the housing in a second position, the second position being a fixed distance from the first position to measure backscatter of the light reflected by a muscular-walled tube of the body at a depth below the surface of the body.

Abstract: A method, system, apparatus, and/or device for adjusting a power consumption level of a device. The method, system, apparatus, and/or device may include: a first sensor interface, a second sensor interface, and a processing device coupled to the first sensor interface and the second sensor interface. The processing device may: measure a first physiological measurement via the first sensor interface within a first period of time; measure a second physiological measurement via the second sensor interface within the first period of time; adjust a power consumption level of the apparatus in view of at least one of the first physiological measurement or the second physiological measurement; measure the physiological measurement via the first sensor interface at the adjusted power consumption level within a second period of time; and measure a second physiological measurement via the second sensor interface at the adjusted power consumption level within the second period of time.

Abstract: Described herein are apparatuses and methods for power adjustments of user measurement device. In one apparatus, a processing element is coupled to a first sensor interface and a second sensor interface. The processing element measures a physiological measurement via the first sensor interface and measures an amount of activity of the apparatus via the second sensor interface. The processing element performs a power adjustment activity in view of the amount of activity. For example, the power adjustment activity may be to perform any one or more of the following: adjust a number of different physiological measurements to take; adjusting a frequency of taking physiological measurements; turning off one or more systems; adjusting a type, frequency, data rate, number of channels and/or power at which to communicate data.