We wanted charging your Apple Watch to be as simple as possible. When linked with Apple Watch, it now charges up to 33% faster, allowing you to reach 80 percent charge in around 45 minutes. 
Simply position the connector near the rear of the watch, where magnets will instantly snap it into place. 
There are no exposed contacts in this system because it is totally sealed. It's also quite forgiving, as it doesn't require precise alignment.
Compatible with all watch models.