Galaxy Watch6 , 3.81 cm (1.5") , OLED , Brightness 600 cd/m² , Display type Digital , Display resolution 480 x 480 pixels , Touchscreen Yes , Watch glass type Sapphire , Operating system installed Wear OS , RAM capacity 2000 MB , Flash memory 16 GB , Shape Round , Market positioning Smartwatch , Watch case size 44 mm , Watch case colour Graphite , Watch case material Aluminium , Band colour Graphite , Heart rate monitor Yes , Near Field Communication (NFC) Yes , Wi-Fi Yes , Bluetooth version 5.3 , Battery type Built-in battery , Battery capacity 425 mAh , Weight 33.3 g