Smart ring

1 . A system comprising:

a smart device comprising a universal interface;

a cursor movable on the universal interface; and

a wearable device comprising:

an adjustable strap affixed to a body portion to form an opening, the opening being configured to receive a body part of a user therein;

a gesture component; and

at least one sensor configured to:

detect an action by the user on the wearable device to activate the wearable device; and

in response to a detection of a gesture action by the user, execute an action on the universal interface,

wherein the smart device further comprises a handwriting API configured to:

convert one or more points to a sequence of cubic Bézier curves;

query the sequence of cubic Bezier curves; and

identify a match between the sequence of cubic Bézier curves and a predicted match such that the predicted match is displayed as text on the universal interface.

2 . The system of claim 1 , wherein the action by the user on the wearable device comprises a tap action.

3 . The system of claim 1 , wherein the wearable device is selected from the group consisting of: a watch, a bracelet, a wristband, an ankle band, a ring, and a necklace.

4 . The system of claim 3 , wherein the wearable device comprises the ring, and wherein the gesture action comprises a movement of a hand of the user.

5 . The system of claim 4 , wherein the gesture action is selected from the group consisting of: a rotation action, a left swipe action, a right swipe action, a movement upwards action, and a movement downwards action.

6 . The system of claim 1 , wherein the action executed on the universal interface is selected from the group consisting of: an increase in a volume, a decrease in the volume, a skip action, a zoom in action, and a zoom out action.

7 . The system of claim 1 , wherein the at least one sensor is further configured to:

detect another action executed by the user on the wearable device to pause the action executed on the universal interface.

8 . The system of claim 1 , wherein the at least one sensor is further configured to:

detect another action executed by the user on the wearable device to engage or click on a component on the universal interface.

9 . The system of claim 1 , wherein the gesture action by the user comprises drawn out points on a two-dimensional plane.

10 . The system of claim 1 , wherein the wearable device further comprises:

one or more motion detecting sensors configured to assist the gesture component, wherein each of the one or more motion detecting sensors comprises an audio sensor or an accelerometer.

11 . The system of claim 1 , wherein the wearable device further comprises:

at least one pressure sensor configured to assist the gesture component, wherein the at least one pressure sensor comprises an array of pressure sensors radially distributed around an interior surface of the body portion.

12 . The system of claim 11 , wherein each of the at least one pressure sensor comprises a force sensitive resistor or a piezoelectric sensor.

13 . The system of claim 1 , wherein the wearable device is a ring, and wherein the body part of the user is an index finger of the user.

14 . A system comprising:

a smart device comprising a universal interface;

a cursor movable on the universal interface; and

a wearable device comprising:

an adjustable strap affixed to a body portion to form an opening, the opening being configured to receive a body part of a user therein;

a gesture component; and

at least one sensor configured to:

detect an action by the user on the wearable device to activate the wearable device; and

in response to a detection of a gesture action by the user, execute an action on the universal interface,

wherein the wearable device further comprises:

at least one pressure sensor configured to assist the gesture component, wherein the at least one pressure sensor comprises an array of pressure sensors radially distributed around an interior surface of the body portion.

15 . The system of claim 14 , wherein each of the at least one pressure sensor comprises a force sensitive resistor or a piezoelectric sensor.