Samsung briefly put up support pages for the upcoming Galaxy Watch 3 on its South Korean website and subsequently pulled them. The only information the pages contained was the model number of the device - four in this case. The SM-R840NZKAKOO/SM-R840NZSAKOO - which refer to the 41mm model - and SM-R850NZDAKOO/SM-R850NZSAKOO - the 45mm. These are the non-cellular variants of the upcoming smartwatch, the cellular models have the SM-R845 and SM-R855 model numbers. However we do know some of the specs, courtesy of the Galaxy Watch 3's certification with Thailand's NBTC. The case will be...
Source: https://www.gsmarena.com/samsung_galaxy_watch_3_support_pages_briefly_appear_hinting_imminent_unveil-news-43633.php