Complication Lab gives everyone the power to create their own complications and widgets. - Choose from 30+ health data types, including heart rate and blood oxygen. - Style it yourself - Keep track of your goals - Create your own color palette - Create a many complications and widgets as you want - You have the freedom to find the perfect combination that fits your style Our app and complications take full advantage of the power of the new Apple Watch series 7 and the latest new features of watchOS 8. We support Apple Watch Series 4 and up. Complication Lab uses your Health and Activity data that's available from your phone's Health app to populate your beautifully designed complications and widgets. As privacy is at the core of our DNA, we do not collect any of this data.