Question: is apple watch waterproof series 4?
Answer: In technical terms, the original Apple Watch and Series 1 have a water resistance rating of IPX7 under IEC (International Electrotechnical Commission) standard 60529, and Series 2, 3, 4, and 5 (the latest model) have a water resistance rating of up to 50 meters of depth under ISO standard 22810:2010.