line in Switzerland S2, a planned Bremen S-Bahn service S2, a Hamburg S-Bahn service S2, a Hanover S-Bahn service S2, a RheinNeckar S-Bahn service S2, a Rostock S-Bahn service S2, a Stuttgart S-Bahn service S2, a Stadtbahn Karlsruhe service S2 (ZVV), a service of the S-Bahn Zürich in Switzerland Line S2 (BCR), a commuter rail service in Beijing Line S2 (Milan suburban railway service) FGC line S2, a suburban train service in Barcelona Province Military Soviet submarine S-2, a Soviet World War II submarine Grumman S-2 Tracker, a US Navy aircraft Finnish torpedo boat S2, which sank in 1925 USS S-2 (SS-106), a US Navy submarine Göta Signal Corps (designation S2), a 1944–1997 Swedish Army signal unit S2 (missile), the first deployed French land-based strategic missile S-2, a military intelligence officer on the staff of a regiment or battalion HMS Rorqual (S02), a 1956 British Royal Navy Porpoise-class submarine ORP S-2, Polish World War II motor gun boat Organisations S2 Records, a subsidiary of Sony Music S2 (TV channel), a former Scottish television channel S2 Games, a video game developer S2 Yachts, a defunct sailboat-building company Products Samsung Galaxy S II, an Android smartphone Samsung Gear S2, a Tizen smartwatch Samsung Galaxy Tab S2, an Android tablet Cameras Nikon S2, a 35mm rangefinder camera produced between 1954 and 1958 as part of the Nikon S-mount range Nikon 1 S2, a digital mirrorless interchangeable lens camera Canon PowerShot S2 IS, a 2005 5.0 megapixel digital camera FinePix S2 Pro, a 2002 interchangeable lens digital single-lens reflex camera by Fuji Leica S2, a 2009 37 million pixel medium format digital single-lens reflex camera Other uses S2, a version of the racing simulation Live for Speed S2, a district of the S postcode area, covering areas of eastern Sheffield Seattle Sounders FC 2, nicknamed S2 Second year, in the Scottish education system S2 (classification), used for categorising swimmers based on their level of disability Splatoon 2, a 2017 video game for the Nintendo Switch Pitts Special, Two-Seat Aerobatics Biplane