Samsung Galaxy Watch Active2 - Heart rate, GPS, IP68, MIL-STD-810G, Super AMOLED, Tizen OS 4.0 Enhance the fitness experience with the Galaxy Watch Active2. It comes with a fresh new look and a larger customizable screen than the previous generation. With a Samsung Galaxy Watch Active2, you will always get excellent control of your health wherever you are, including both heart rate and calorie intake.