Wear OS 6 will support third-party watch face stores like Facer, which were restricted on Wear OS 5. Facer collaborated with Google to ensure watch faces feature "instant syncing" with Pixel Watches. Third-party faces must utilize the Watch Face Format (WFF), but many older animated and 3D watch faces will not sync. The rollout of Wear OS 6 is anticipated to begin in late summer or early fall 2025. Developers are encouraged to create watch face marketplaces using WFF, addressing previous challenges in promoting watch faces through the Play Store. Facer, TIMEFLIK, WatchMaker, Pujie, and Recreative will be among the first to offer their watch faces on Wear OS 6 devices. The WFF format uses cached sensor data to minimize battery consumption. Facer is preparing to unveil thousands of watch faces for Wear OS 6, available for free or through a premium subscription model. Some legacy faces will be adapted to the WFF standard, but not all previous favorites will be available. Facer aims to equip developers with tools for creating WFF-compliant watch faces and plans to introduce new features and partnerships this summer.