The Galaxy Watch4 and Watch4 Classic come in an even slimmer and more robust design. Both watches are available in different colors and sizes. The Galaxy Watch4 has an even more compact size thanks to the digital bezel and comes in Black, Silver and Gold at 40 mm and Black, Silver and Green at 44 mm. The Galaxy Watch4 Classic has a rotating bezel with size 42 mm or 46 mm in Black or Silver. Both Galaxy Watches are also 5 ATM water resistant.Health first With the Galaxy Watch4 and Watch4 Classic, you can get closer to your health and athletic goals. Not only can the Galaxy Watches monitor your sleep, but they can actively track and monitor your health thanks to features like blood pressure measurement, electrocardiogram and bioelectrical impedance analysis. With this fitness/wellness tracking, you always have your fitness coach on your wrist. In case of falls, an SOS message is automatically sent. There is also excellent app compatibility. Uninterrupted connectivityThe LTE versions of the Galaxy Watch4 and Watch4 Classic can be used to make calls or surf the web without a connection to a smartphone. The built-in GPS gives you more freedom and lets you always track your route, whether you're jogging or cycling.