Systems and methods for using information from wearable devices

A method, comprising:

• storing, in a database of a backend system, a plurality of user accounts, each user account including user account information that includes information to identify the account holder, an account holder wearable device identifier, and a flag that indicates whether transactions are to be approved or denied based on the respective presence or absence of a vital sign of the account holder that is detected by a wearable device identified by the account holder wearable device identifier;
• providing, for execution on the wearable device that includes a health monitor, an application that:
• queries, via an application programming interface to the health monitor, the wearable device to obtain a wearable device identifier and health data that indicates the presence or absence of a vital sign of the wearer of the wearable device, and
• wirelessly transmits the wearer's wearable device identifier and health data that indicates the presence or absence of the wearer's vital sign to the backend system;
• receiving, at the backend system, wearer's wearable device identifier and health data that indicates the presence or absence of the wearer's vital sign;
• determining, using a processor at the backend system, whether the wearer's wearable device identifier matches the account holder wearable device identifier;
• if the wearer's wearable device identifier matches the account holder wearable device identifier:
• accessing, using the processor at the backend system, the account holder user account, and
• setting, using the processor at the backend system, the flag stored in the account holder user account that indicates whether transactions are to be approved or denied based on the received health data that indicates the presence or absence of the wearer's vital sign.

A system, comprising:

• a wireless wearable device communication interface that communicates, via a network, with a wearable device having a wearable device identifier to receive the wearable device identifier and a signal that indicates that the wearable device is detecting a vital sign of the wearer of the wearable device;
• a transaction processor that approves or denies transaction requests;
• a database that stores a plurality of user accounts, wherein each user account includes information that identifies the account holder, an account holder wearable device identifier, and a user preference indicator that indicates whether the transaction processor is to approve or deny a request based on the respective presence or absence of a vital sign of the account holder that is detected by the wearable device identified by the account holder wearable device identifier;
• and
• a transaction request communication interface that receives a transaction request from a point of sale terminal, wherein:
• when the transaction request communication interface receives the transaction request from the point of sale terminal, the transaction processor identifies a user account based on information received with the user account, queries the account holder user account to determine whether user preference indicator stored in the account holder user account indicates whether to approve or deny the transaction, and transmits, based on the query result, a signal, via the transaction request communication interface, approving or denying the transaction to the point of sale terminal, and
• the wearable device includes an application that queries, via an application programming interface, the wearable device to obtain a wearable device identifier and signal that signal that indicates that the wearable device is detecting a vital sign of the wearer of the wearable device and wirelessly transmits the wearable device identifier and signal to the wireless wearable device communication interface.