Samsung Galaxy Watch8 (Bluetooth, 44mm) Operating System Wear OS powered by Samsung Body Dimensions & Weight 46.0 × 43.7 × 8.6 mm Weight: 34.0 g Display 1.5" (37.3 mm) Super AMOLED Resolution: 480 × 480 • 16M colors Always-On Display supported (AOD) Processor Penta-core CPU (1.6 GHz + 1.5 GHz) Memory & Storage 32 GB storage Connectivity Bluetooth v5.3 (profiles: A2DP, AVRCP, HFP, HSP) Wi-Fi 802.11 a/b/g/n (2.4 & 5 GHz) NFC: Yes Sensors Accelerometer • Barometer • Bioelectrical Impedance Analysis (BIA) Electrical Heart Sensor (ECG) • Optical Heart Rate Sensor Gyroscope • Geomagnetic • Infrared Temperature • Ambient Light Battery 435 mAh (typical), non-removable Usage: up to 40 hours (AOD Off) Fast charging supported