Apple Watch Series 1 and Apple Watch (1st generation) are splash and water resistant, but submerging Apple Watch Series 1 and Apple Watch (1st generation) isn't recommended.
Apple Watch Series 2, Apple Watch Series 3, and Apple Watch Series 4 may be used for shallow water activities like swimming in a pool or ocean. However, Apple Watch Series 2, Apple Watch Series 3, and Apple Watch Series 4 shouldn't be used for scuba diving, water skiing, or other activities involving high velocity water or submersion below shallow depth.
Showering with Apple Watch Series 2, Apple Watch Series 3, and Apple Watch Series 4 is ok, but we recommend not exposing Apple Watch to soaps, shampoos, conditioners, lotions, and perfumes as they can negatively affect water seals and acoustic membranes. Apple Watch should be cleaned with fresh water and dried with a lint free-cloth if it comes in contact with anything other than fresh water.
Water resistance isn't a permanent condition and may diminish over time. Apple Watch can't be rechecked or resealed for water resistance. The following may affect the water resistance of your Apple Watch and should be avoided:
Dropping Apple Watch or subjecting it to other impacts.
Exposing Apple Watch to soap or soapy water, for example while showering or bathing.
Exposing Apple Watch to perfume, solvents, detergent, acids or acidic foods, insect repellent, lotions, sunscreen, oil, or hair dye.
Exposing Apple Watch to high velocity water, for example while water skiing.
Wearing Apple Watch in the sauna or steam room.
Not all bands are appropriate for water use. For example, the stainless steel and leather bands aren't water resistant and shouldn't be exposed to liquids.
What should I do if my Apple Watch gets wet?
If water splashes on to your Apple Watch, wipe it off with a nonabrasive, lint-free cloth. Don't use heat, compressed air, or sprays. Clean and dry your Apple Watch, the band, and your skin after workouts or heavy sweating. After swimming, gently rinse Apple Watch Series 2, Apple Watch Series 3, and Apple Watch Series 4 with warm tap water. Dry Apple Watch and the band thoroughly if they're exposed to fresh water. Learn more about cleaning your Apple Watch.
If your Apple Watch got wet and now its speaker sounds muffled, follow the steps below. Don't insert anything into the openings, for example the microphone or speaker ports, and don't shake the watch to remove water. Allowing your Apple Watch to charge overnight may speed up evaporation.
On Apple Watch Series 3 and Apple Watch Series 4, measurements from the barometric altimeter may be less accurate if water gets into the air vent, for example during swimming. Normal altimeter performance will return after the water has evaporated.
Apple Watch Series 2, Apple Watch Series 3, and Apple Watch Series 4
When you start a swimming workout, your Apple Watch automatically locks the screen with Water Lock to avoid accidental taps. When you're done, turn the Digital Crown to unlock the screen and clear any water from your Apple Watch. You hear sounds and may feel some water on your wrist.
To manually clear water from Apple Watch, swipe up on the bottom of the watch face to open Control Center, tap Water Lock, then turn the Digital Crown to unlock the screen and clear water from the speaker.