A wireless device for providing specific absorption rate, SAR, control comprising: a wireless transmitter; a capacitance sensor; and a processor coupled to the wireless transmitter and the capacitance sensor, wherein the processor is configured to: receive a first capacitance measurement from the capacitance sensor; estimate a relative proximity of a human body to the apparatus based on the measurement; determine a target transmission time for the wireless transmitter within a time period based on the estimate; and switch off the wireless transmitter for a portion of the time period if a transmission time of the wireless transmitter during the time period exceeds the target transmission time; wherein the capacitance sensor is coupled to a first capacitor and a second capacitor, wherein the first capacitance measurement corresponds to the first capacitor, wherein the capacitance sensor is configured to provide a second capacitance measurement of the second capacitor to the processor, wherein the processor is further configured to receive the second capacitance measurement, and wherein estimating a relative proximity is further based on the second capacitance measurement; wherein the processor is further configured to: determine a presence of a human body relative to the apparatus based on the first capacitance measurement and the second capacitance measurement; if a human body is determined to be present, estimate the relative proximity and determine whether SAR control is required based on the estimate of relative proximity; if SAR control is required, compare a channel quality metric to a threshold and determine the target transmission time if the channel quality metric is less than the threshold; and if the channel quality metric is greater than the threshold, determine a power backoff factor and transmit at a power level reduced from the maximum power level by the power backoff factor during the time period. a wireless transmitter; a capacitance sensor; and a processor coupled to the wireless transmitter and the capacitance sensor, wherein the processor is configured to: receive a first capacitance measurement from the capacitance sensor; estimate a relative proximity of a human body to the apparatus based on the measurement; determine a target transmission time for the wireless transmitter within a time period based on the estimate; and switch off the wireless transmitter for a portion of the time period if a transmission receive a first capacitance measurement from the capacitance sensor; estimate a relative proximity of a human body to the apparatus based on the measurement; determine a target transmission time for the wireless transmitter within a time period based on the estimate; and switch off the wireless transmitter for a portion of the time period if a transmission time of the wireless transmitter during the time period exceeds the target transmission time; wherein the capacitance sensor is coupled to a first capacitor and a second capacitor, wherein the first capacitance measurement corresponds to the first capacitor, wherein the capacitance sensor is configured to provide a second capacitance measurement of the second capacitor to the processor, wherein the processor is further configured to receive the second capacitance measurement, and wherein estimating a relative proximity is further based on the second capacitance measurement; wherein the processor is further configured to: determine a presence of a human body relative to the apparatus based on the first capacitance measurement and the second capacitance measurement; if a human body is determined to be present, estimate the relative proximity and determine whether SAR control is required based on the estimate of relative proximity; if SAR control is required, compare a channel quality metric to a threshold and determine the target transmission time if the channel quality metric is less than the threshold; and if the channel quality metric is greater than the threshold, determine a power backoff factor and transmit at a power level reduced from the maximum power level by the power backoff factor during the time period.