The Galaxy Watch features a 1.15 GHz dual processor and 10nm semiconductors, for seamless performance and faster business workflows. Tested to MIL-STD-810G standards, the Galaxy Watch is water-resistant to 50 meters and operates under temperature extremes from -40 C to 63 C degrees.
https://www.amazon.com/Samsung-Midnight-Bluetooth-SM-R815NZSCXAR-Renewed/dp/B07LC1PJ3S

