Latest Samsung Galaxy Gear Sport 43mm user agents:

User Agent	Browser	Platform
Mozilla/5.0 (Linux; Tizen 4.0; SAMSUNG SM-R600) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/2.0 Chrome/56.0.2924.0 Mobile Safari/537.36	Samsung Browser 2	Tizen 4
Mozilla/5.0 (Linux; Tizen 4.0; SAMSUNG SM-R600) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.0 Mobile Safari/537.36	Chrome Mobile 56	Tizen 4
Mozilla/5.0 (Linux; Tizen 3.0; SAMSUNG SM-R600) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/2.0 Chrome/47.0.2526.69 Mobile Safari/537.36	Samsung Browser 2	Tizen 3
Mozilla/5.0 (Linux; Tizen 3.0; SAMSUNG SM-R600) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.69 Mobile Safari/537.36	Chrome Mobile 47	Tizen 3