Monitor your health with the Fossil Gen 4 Heart Rate Tracking Smartwatches. Aside from tracking your heart rate, this modern wearable allows you to receive notifications, make payments and more. Powered with Wear OS by Google, the Fossil Gen 4 smartwatches are compatible with Android and iOS devices. Additionally, the Gen 4 smartwatches include the Fossil Q Explorist HR and Fossil Q Venture HR. The Q Explorist HR has a 45mm casing and 22mm bracelets and straps. Similarly, the Q Venture HR features a 40mm casing and 18mm interchangeable straps. The smartwatches are capable of tracking your heart rate across various types of workouts via Google Fit. They even come with watch faces that display beats-per-minute for quick access. Moreover, the Fossil Gen 4 smartwatches offer NFC for mobile payment. Complete with built-in GPS, the watches can track your activities even if you leave your phone at home.