Fitbit Inc., the maker of wearable health-tracking devices, fell to the lowest price since its initial public offering after introducing a new smartwatch -- similar in design to Apple Inc.’s product -- while companies such as Fossil Group and Under Armour Inc. debuted fitness devices at the International Consumer Electronics Show. Fitbit’s Blaze features on-screen workouts and a connected GPS, and was available Tuesday for pre-sale at $199.95. Meanwhile, Under Armour showcased a connected fitness system that includes a sport band, and products including a smart shoe and wireless headphones. Fossil also said it will introduce more than 100 wearable products in 2016.