The upcoming fitness tracker from Garmin features a round face and an overhauled UI more reminiscent of Garmin's own Fenix line of wearables. This may position the Vivoactive 3 against competing smartwatches, especially Fitbit's upcoming smartwatch.
https://www.notebookcheck.net/Garmin-Vivoactive-3-takes-design-cues-from-other-smartwatches-in-leaked-photos.240854.0.html