A system for displaying information relating to a subject's wellness and/or nutrition based at least in part on analyte data received from an in vivo analyte sensor, the system comprising: an in vivo analyte sensor configured to measure at least one analyte level in a bodily fluid; and sensor electronics configured to receive a signal indicative of one or more analyte level measurements from the in vivo analyte sensor, the sensor electronics comprising: one or more sensor electronics processors; an accelerometer coupled to the one or more sensor electronics processors, the accelerometer configured to measure a physical activity level of the subj ect; a memory (163, 165) coupled to the one or more sensor electronics processors, the memory storing instructions that, when executed by the one or more sensor electronics processors, cause the one or more sensor electronics processors to: determine one or more analyte metrics (200, 250, 320, 330, 340, 350, 360, 370, 375, 385, 390, 500), each metric based on a plurality of the analyte level measurements; and discard the analyte level measurements after the associated one or more analyte metrics are determined; and communications circuitry coupled to the one or more sensor electronics processors, the communications circuitry configured to: wirelessly transmit at least one of the one or more analyte metrics and the one or more physical activity level measurements to a reader device; wherein the in vivo analyte sensor and the sensor electronics are provided in a single housing configured to be worn on the body of a user. an in vivo analyte sensor configured to measure at least one analyte level in a bodily fluid; and sensor electronics configured to receive a signal indicative of one or more analyte level measurements from the in vivo analyte sensor, the sensor electronics comprising: one or more sensor electronics processors; an accelerometer coupled to the one or more sensor electronics processors, the accelerometer configured to measure a physical activity level of the subj ect; a memory (163, 165) coupled to the one or more sensor electronics processors, the memory storing instructions that, when executed by the one or more sensor electronics processors, cause the one or more sensor electronics processors to: determine one or more analyte metrics (200, 250, 320, 330, 340, 350, 360, 370, 375, 385, 390, 500), each metric based on a plurality of the analyte level measurements; and discard the analyte level measurements after the associated one or more analyte metrics are determined; and communications circuitry coupled to the one or more sensor electronics processors, the communications circuitry configured to: wirelessly transmit at least one of the one or more analyte metrics and the one or more physical activity level measurements to a reader device; one or more sensor electronics processors; an accelerometer coupled to the one or more sensor electronics processors, the accelerometer configured to measure a physical activity level of the subj ect; a memory (163, 165) coupled to the one or more sensor electronics processors, the memory storing instructions that, when executed by the one or more sensor electronics processors, cause the one or more sensor electronics processors to: determine one or more analyte metrics (200, 250, 320, 330, 340, 350, 360, 370, 375, 385, 390, 500), each metric based on a plurality of the analyte level measurements; and discard the analyte level measurements after the associated one or more analyte metrics are determined; and determine one or more analyte metrics (200, 250, 320, 330, 340, 350, 360, 370, 375, 385, 390, 500), each metric based on a plurality of the analyte level measurements; and discard the analyte level measurements after the associated one or more analyte metrics are determined; and communications circuitry coupled to the one or more sensor electronics processors, the communications circuitry configured to: wirelessly transmit at least one of the one or more analyte metrics and the one or more physical activity level measurements to a reader device; wherein the in vivo analyte sensor and the sensor electronics are provided in a single housing configured to be worn on the body of a user.