As a smartwatch on Wear OS, any of the Fossil Gen 5 models can do a number of things. From tracking heart rate to displaying smartphone alerts from messages, emails, and more. They also come equipped with Google Assistant so you can issue voice commands. Whether it be for smart home control or just to ask a question. Need some directions to that restaurant you wanted to try? Not a problem, just ask Google from your wrist. All of them are equipped with Google Pay capabilities too. Which means you can more conveniently make mobile payments with any of the four. You should get about 24 hours of battery life on a single charge out of any of them. So depending on how often you wear it and what you use while you do, you may only have to charge it every couple of days. All of these connect through Bluetooth, so you will need to have your smartphone on you to use data features on the watch.