Best Prime Day Fitness Deals, From Bestsellers to Editor Favorites

Withings ScanWatch Horizon ($400, originally $500)

If you prefer a stylish watch to a ring, this Withings smart watch tracks your fitness, heart rate, sleep, and more. One reviewer even called it the "Rolls Royce of Smart Watches" for its beautiful design and luxury feel, while still offering all the features of a standard smart watch. Shoppers also confirmed the watch's 30-day battery life promise.