| CPC A61B 5/14532 (2013.01) [A61B 5/14546 (2013.01); A61B 5/7282 (2013.01); A61B 5/746 (2013.01); G06Q 50/22 (2013.01); G16H 10/60 (2018.01); G16H 40/67 (2018.01); G16H 80/00 (2018.01); A61B 5/7275 (2013.01)] | 25 Claims |

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1. A method comprising:
establishing, using a software executed on a receiver device, a wireless communication channel between the receiver device and a data processing unit, wherein the data processing unit is connected to a glucose sensor in contact with a bodily fluid under a skin surface of a user and configured to sense glucose levels in the bodily fluid;
after the wireless communication channel is established, periodically receiving, by the receiver device, over a period of time a data processing unit signal from the data processing unit via the wireless communication channel, wherein the data processing unit signal is generated by the data processing unit based on glucose levels sensed by the glucose sensor;
receiving over the period of time, a signal by a wristwatch from the receiver device via wireless communication, wherein the wristwatch comprises a display and a user input device, wherein the wristwatch comprises a resting state and an active state, the active state including at least a first display mode and a second display mode;
receiving, via the user input device of the wristwatch, a selection of the first display mode or the second display mode, wherein the first display mode is configured to display a current glucose level based on the received signal and the second display mode is configured to display a graph of the glucose level over the period of time; and
in response to a determination that the wristwatch is in the active state, displaying at least one of the current glucose level and the graph of the glucose level on the display in the selected display mode.
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