Back at WWDC 2021, Apple said that iOS 15 and watchOS 8 would allow iPhone and Apple Watch owners to store digital hotel keys on their devices. While that feature didn’t quite make the release of those two updates, it’s now available at six Hyatt locations across the US. As you might expect, it allows you to store a digital version of your hotel keycard in Apple Wallet.

You can add the keycard at any point after you reserve a room. However, you’ll still need to check in at the front desk before you can use your iPhone or Apple Watch to enter your guestroom or any other restricted area within the hotel. The digital keycards support Apple Wallet’s Express Mode feature, which means you don’t need to authenticate your identity with Face ID or Touch ID every time you want to use the feature.

If at any point you decide to extend your stay or change rooms, the hotel can update your keycard without the need for you to visit the front desk. What’s more, if your device starts running low on battery life and enters Power Reserve mode, you can still use your iPhone or Apple Watch as a keycard for up to five hours.

The six locations where you can use your iPhone or Apple Watch to store a keycard are as follows: Andaz Maui at Wailea Resort, Hyatt Centric Key West Resort and Spa, Hyatt House Chicago/West Loop-Fulton Market, Hyatt House Dallas/Richardson, Hyatt Place Fremont/Silicon Valley and Hyatt Regency Long Beach.

Hyatt says it expects to roll out the technology to all of its locations globally. Sometime next year, Apple also plans to allow iOS 15 and watchOS 8 to store government issued IDs from select states as well.