WEARABLE HEALTHCARE DEVICE

1 . A wrist-wearable device comprising:

a housing configured to connect to a wrist band;

an electrical sensor comprising:

an electrode configured to receive an electrical signal from the user; and

a detection circuit configured to detect an electrocardiogram (ECG) of the user based on the electrical signal;

a display;

a location service circuit configured to identify a location of the wrist-wearable device;

a motion sensor configured to detect an acceleration of the wrist-wearable device;

a transceiver;

a processor; and

memory storing instructions that, when executed by the processor, cause the processor to perform operations comprising:

determining, based on the ECG, that the user is experiencing atrial fibrillation (AF);

causing the display to output a visual signal indicating that the user is experiencing the AF; and

causing the transceiver to transmit, to a first external computing device, a wireless signal indicating that the user experienced the AF.

2 . The wrist-wearable device of claim 1 , wherein the operations further comprise:

generating, based on the acceleration of the wrist-wearable device, an alert indicating the location of the wrist-wearable device at the time of the acceleration; and

causing the transceiver to transmit, to a second external computing device, the alert.

3 . The wrist-wearable device of claim 1 , wherein the first external computing device is a cell phone.

4 . The wrist-wearable device of claim 1 , wherein the second external computing device is an emergency responder device.

5 . The wrist-wearable device of claim 1 , wherein the wireless signal indicating that the user experienced the AF further indicates the location of the wrist-wearable device.

6 . The wrist-wearable device of claim 1 , further comprising:

an output device configured to vibrate or output an auditory signal indicating that the heart of the user is experiencing the AF.

7 . The wrist-wearable device of claim 1 , the visual signal being a first visual signal, the wrist-wearable device further comprising:

a heart rate sensor configured to detect a heart rate of the user,

wherein the operations further comprise causing the display to output a second visual signal indicating the heart rate of the user.

8 . The wrist-wearable device of claim 1 , wherein the housing is connected to the wrist band.

9 . The wrist-wearable device of claim 1 , wherein the wrist-wearable device is a watch.

10 . The wrist-wearable device of claim 1 , wherein the memory further stores data indicative of the ECG.

11 . A method performed by a wrist-wearable device, the method comprising:

detecting, by a sensor, a physiological parameter of a user;

determining, by a processor based on the physiological parameter, that the user is experiencing atrial fibrillation (AF);

outputting, by a display, a visual signal indicating that the user is experiencing the AF; and

transmitting, by a transceiver to a first external computing device, a first wireless signal indicating that the user experienced the AF.

12 . The method of claim 11 , wherein the first external computing device is a cell phone.

13 . The method of claim 11 , further comprising:

detecting, by a motion sensor, an acceleration of the wrist-wearable device.

14 . The method of claim 13 , wherein the acceleration indicates that the user has fallen.

15 . The method of claim 14 , further comprising

generating an alert based on the indication that the user has fallen; and

transmitting, by the transceiver to a second external computing device, a second wireless signal indicating that the user has fallen.

16 . The method of claim 15 , further comprising

determining, by a location service circuit, a location of the wrist-wearable device when the user experienced the fall and wherein the second wireless signal further indicates the location of the wrist wearable device when the user experienced the fall.

17 . The method of claim 16 , wherein the second external computing device is an emergency responder device.

18 . The method of claim 17 , further comprising determining, by the processor, a location of a defibrillator within a distance of the location of the wrist-wearable device when the user experienced the fall, and

wherein the second wireless signal further indicates the location of the defibrillator.

19 . The method of claim 11 , further comprising:

determining, by a location service circuit, a location of the wrist-wearable device when the user experienced the AF,

wherein the first wireless signal further indicates the location of the wrist-wearable device when the user experienced the AF.

20 . The method of claim 11 , wherein the physiological parameter comprises at least one of an electrocardiogram (ECG) and a heart rate.