Operating system Wear OS Memory storage capacity 32 GB Special features 50m water resistant (IP68), Blood pressure monitor, Bluetooth Enabled, ECG certified, MIL-STD-810H compliant, Sleep Tracking50m water resistant (IP68), Blood pressure monitor, Bluetooth Enabled, ECG certified, MIL-STD-810H compliant, Sleep Tracking Connectivity technology Wi-Fi, GPS Wireless communication standard 802.11ac About this item Charger Included, 1.34" Super AMOLED Display (438x438px), Sapphire Crystal Protection, 3000 nits Peak Brightness, IP68 Water Resistant (up to 50m), MIL-STD-810H Compliant 32GB, 2GB RAM, Exynos W1000 (3nm), Penta-core, Mali-G68 GPU, Android Wear OS 6, One UI Watch 8, 325mAh Battery, Bluetooth 5.3 Track your health with advanced sensors: ECG, Blood Pressure Monitor, SpO2, Heart Rate, Sleep Tracker, Temperature (skin), and Antioxidant Index Features Advanced Sleep Coaching, Galaxy AI for intelligent health summaries, Energy Score insights, and real-time workout coaching International Model - No Warranty. Bluetooth Version: Wi-Fi + GPS Only. Compatible with Android devices Only. Supports Samsung Pay. (Important: Country selection may not be available during setup. Select Any, as Country will updated later after Connecting to WIFI in Settings.)