Question: what is the latest os for apple watch
Answer: Written in C++ Objective - C Swift OS family Unix - like iOS Working state Current Source model Closed ( with open - source components ) Initial release April 24 , 2015 ; 3 years ago ( 2015 - 04 - 24 ) Latest release 4.3. 2 ( 15U70 ) ( July 9 , 2018 ; 34 days ago ( 2018 - 07 - 09 ) ) ( ± ) Latest preview 5.