We believe navigation directions at your wrist are an extremely useful case for smart watches, especially for outdoor activities. That is the reason we constantly invest in developing great apps and new features for various OS combinations such as the Apple Watch and many further smart watches.
You’ll find an overview of our current options here: http://help.komoot.de/knowledgebase/articles/613362
For Garmin iQ we provide a first solution with notifications (please also see the link above). However, we are not yet able to provide a full app that meets our quality standards. We will of course keep you posted here.
Thank you for your understanding
And don't forget about fenix 5x, 5 and 5s :).