Fitbit is best known for making some of the world’s most popular smart fitness trackers. But when it acquired Pebble, it made its intention clear: it was getting into the smartwatch biz. That became reality it launched the Fitbit Ionic, followed by the more affordable Versa a few months later. There may, however, still be some doubts about whether Fitbit has what it takes to make and maintain an actual smartwatch (the Blaze may not have counted). The fitness company is putting those fears to rest with the Fitbit OS 3.0 update delivers not just new health features but apps and watch faces as well.