GPS watch for running/fitness/health tracking. Garmin Connect app is great to track Heart Rate, Sleep (and sleep quality), Hydration, Steps, Stress, Weight, and tells you everything about your runs. Garmin Connect IQ allows you to customize watch face. 1.5 years old, everything is working great including battery, I've just moved on to another Garmin model. Battery charges via USB cord. https://www.garmin.com/en-CA/p/641121#specs