While there are many common features typical among similar products by other brands, there are a few proprietary features unique to Garmin watches. Garmin's Body Battery energy monitoring combines sleep data, activity data, and heart rate variability to give insights about your energy levels and recovery status.For ultra-endurance athletes, backpackers, or anyone else who spends days outside, Garmin's UltraTrac and Expedition GPS battery modes will keep tabs on where you are while cutting off other features to significantly prolong battery life.Garmin's maps are another big feature that sets their watches apart. The Approach S42 and Fenix 7 give users access to over 42,000 golf course maps, while the Fenix 7 provides a bird's-eye view of over 2,000 ski resorts, plus downloadable maps for road, water, and trail worldwide.To get the most out of your Garmin watch, though, be sure to download and use your watch's apps. Garmin Connect is the home base for a multitude of functional extras and training tools. Garmin Coach gives you a personalized training plan for your next race—completely free. Garmin also has apps specifically designed for golfers, skiers, surfers, climbers, and more. If it's an activity with a measurable metric, Garmin probably has an app for that.