Abstract: A wearable device receives authentication information from a user. In response to verifying the authentication information, the wearable device provides the user with access to one or more payment capabilities of the wearable device. In response to determining that the wearable device has been switched into an open state, the wearable device removes access to the one or more payment capabilities of the wearable device.

Abstract: A payment device comprising of a housing, a slot for insertion of a user instrument located on a front surface of the housing, and wherein the housing includes a smart card interface integrated circuit that is configured to read an EMV chip located on the user instrument, and a universal serial bus (USB) type C male connector configured to be inserted into a female connector on a computing device, wherein the USB type C male connector is located on a back surface of the housing, and wherein a size of the USB type C male connector is configured so that when the USB type C male connector is inserted into the female connector on the computing device, the back surface of the housing is within a distance of three centimeters of a surface of the computing device.

Abstract: A payment device comprising of a housing, a slot for insertion of a user instrument located on a front surface of the housing, and wherein the housing includes a smart card interface integrated circuit that is configured to read an EMV chip located on the user instrument, and a universal serial bus (USB) type C male connector configured to be inserted into a female connector on a computing device, wherein the USB type C male connector is located on a back surface of the housing, and wherein a size of the USB type C male connector is configured so that when the USB type C male connector is inserted into the female connector on the computing device, the back surface of the housing is within a distance of three centimeters of a surface of the computing device.

Abstract: A payment device comprising of a housing, a slot for insertion of a user instrument located on a front surface of the housing, and wherein the housing includes a smart card interface integrated circuit that is configured to read an EMV chip located on the user instrument, and a universal serial bus (USB) type C male connector configured to be inserted into a female connector on a computing device, wherein the USB type C male connector is located on a back surface of the housing, and wherein a size of the USB type C male connector is configured so that when the USB type C male connector is inserted into the female connector on the computing device, the back surface of the housing is within a distance of three centimeters of a surface of the computing device.

Abstract: A wearable device receives authentication information from a user. In response to verifying the authentication information, the wearable device provides the user with access to one or more payment capabilities of the wearable device. In response to determining that the wearable device has been switched into an open state, the wearable device removes access to the one or more payment capabilities of the wearable device.

Abstract: A payment device comprising of a housing, a slot for insertion of a user instrument located on a front surface of the housing, and wherein the housing includes a smart card interface integrated circuit that is configured to read an EMV chip located on the user instrument, and a universal serial bus (USB) type C male connector configured to be inserted into a female connector on a computing device, wherein the USB type C male connector is located on a back surface of the housing, and wherein a size of the USB type C male connector is configured so that when the USB type C male connector is inserted into the female connector on the computing device, the back surface of the housing is within a distance of three centimeters of a surface of the computing device.

Abstract: A wearable device receives authentication information from a user. In response to verifying the authentication information, the wearable device provides the user with access to one or more payment capabilities of the wearable device. In response to determining that the wearable device has been switched into an open state, the wearable device removes access to the one or more payment capabilities of the wearable device.

Abstract: A payment device comprising of a housing, a slot for insertion of a user instrument located on a front surface of the housing, and wherein the housing includes a smart card interface integrated circuit that is configured to read an EMV chip located on the user instrument, and a universal serial bus (USB) type C male connector configured to be inserted into a female connector on a computing device, wherein the USB type C male connector is located on a back surface of the housing, and wherein a size of the USB type C male connector is configured so that when the USB type C male connector is inserted into the female connector on the computing device, the back surface of the housing is within a distance of three centimeters of a surface of the computing device.

Abstract: A wearable device receives authentication information from a user. In response to verifying the authentication information, the wearable device provides the user with access to one or more payment capabilities of the wearable device. In response to determining that the wearable device has been switched into an open state, the wearable device removes access to the one or more payment capabilities of the wearable device.