The Gear S3 smartwatch came in two versions, with only the more rugged frontier, having an cellular variant. However, that is no longer the case, since today an LTE-enabled variant of the Gear S3 classic launched. But before you start hunting around online, initially it is an exclusive offering from SK Telecom in Korea. The price tag for the wearable is set at KRW 451,000, or about $387. SK Telecom is also offering a "Gear Happiness Compensation Program", which can shave 50,000 KRW off the price if you return an older Gear S device, before March 31. To further sweeten...
Source: http://www.gsmarena.com/samsung_gear_s3_classic_lte_surfaces_as_an_sk_telecom_exclusive-news-22973.php