New Delhi, Nov. 13 -- Google Wallet is adding digital home keys for compatible smart locks, allowing Android users to unlock their doors with a phone tap or, with supported hardware, automatically as they approach.

Google announced the feature on November 11, beginning with Google Home Public Preview users and promising a wider rollout over the coming weeks. Access depends on compatible locks, phones and home-network hardware, rather than a Wallet app update alone.

The feature uses Aliro, an open digital-access standard from the Connectivity Standards Alliance. In its official announcement, Google said it helped develop and standardize Aliro as part of its work toward a more interoperable smart home.

Google Wallet home keys support tap...