Power through your workoutGo hard knowing that your watch can keep up. with the biggest battery capacity among our wearable series.Never miss a beatThe powerful 3-in-1 Samsung BioActive Sensor controls three health sensors effectively: Optical Heart Rate. Electrical Heart. and Bioelectrical Impedance Analysis. The sensor can monitor your heart rate. track your cardiovascular health. and record your blood pressure.Stronger than your toughest workoutNow 2x tougher front display thanks to Sapphire Crystal. It even looks indestructible with Black Titanium or Gray Titanium body cases to take the big hits.Get your wayEnter the studio and customise from a range of new bands and styles to match your unique look. Mix and match with different combinations only on samsung.com.