The hotel group has launched SPG Keyless, powered by the SPG App, which is available for download by members of the Starwood Preferred Guest programme.
SPG Keyless enables guests to bypass traditional check-in and go directly to their room and unlock the door using their smartphone.
The technology goes live today (5 November) at Aloft Beijing, Aloft Cancun, Aloft Cupertino, Aloft Harlem, W Doha, W Hollywood, W Hong Kong, W New York Downtown, W Singapore and Element Times Square.
The technology will be rolled out across 150 hotels across the Aloft, Element and W hotels by early 2015.
How it works:
SPG Members must register their phone once through the SPG App and allow push notifications, and after booking a reservation into a keyless hotel they will be invited to opt-in to SPG Keyless 24 hours before arrival.
They will then receive a notification that they are checked in and the SPG App will be updated with a room number and Bluetooth key when the room is ready.