I bought a Apple Watch Ultra 2 and been using it in the shower and it stopped working

So an Apple Watch Ultra 2 (which the OP asked about) - cannot be used in a shower...even though it's ok to be used for scuba diving ?

trinicarpenter wrote:

So an Apple Watch Ultra 2 (which the OP asked about) - cannot be used in a shower...even though it's ok to be used for scuba diving ?

Most people do not scuba dive in vats of soap and other solvents that damage water seals. But if that is your thing, we strongly suggest you do not do it with your Apple Watch on. Other replies have giving pointers to the Apple Watch water resistance support page.

See the 'What should I avoid while wearing my Apple Watch?' section in:

About Apple Watch water resistance - Apple Support

dwtd wrote:

Apple's own support page on water resistance states that an Apple Watch Ultra or later should be ok for showering.

From Apple's Support Article on the Watch's water resistance:

What should I avoid while wearing my Apple Watch?

Water resistance isn't a permanent condition and can diminish over time. Apple Watch can't be rechecked or resealed for water resistance. The following can 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 models other than Apple Watch Ultra or later to high-velocity water (for example, while water skiing)
• Wearing Apple Watch while cliff diving or high diving
• Wearing Apple Watch in a steam room
• Wearing Apple Watch models other than Apple Watch Ultra or later in a sauna
• Wearing Apple Watch Ultra or later in a sauna above 55° C (130° F)

So, as long as you don't use soap when you shower, it will be okay.

About Apple Watch water resistance - Apple Support

In the section just below the section from which you copy/pasted your quote, it also states:

if your Apple Watch comes in contact accidentally with soaps, shampoos, conditioners, lotions, perfumes, solvents, detergent, acids or acidic foods, insect repellent, sunscreen, oil, hair dye, or any substance other than water, it should be cleaned with fresh warm water and dried with a lint-free cloth. Chemicals found in these items could negatively affect water seals and acoustic membranes.

As a few of us have stated already!

About Apple Watch water resistance - Apple Support

I don't believe anyone bought an Watch for the O2 sensor. Stand-alone O2 sensors are really cheap on Amazon.

Pulse Oximeter Fingertip for Home Use

It’s possible that the watch had an issue before you purchased it because taking a shower with it should not have stopped it from working second thing it could’ve been a defect when it was purchased by the person you purchased it from and that’s why they sold it to you. Unfortunately there’s not much you can do, unless you find someone that’s willing to fix it for you, but that may cost you a lot of money.

Soap (and other solvents) should be avoided, as it destroys the water seals on the Apple Watch.

taking a shower with it should not have stopped it from working

Showering with an Watch is actually a bad idea. The chemicals in soaps, shampoos and conditioners can damage the water-resistant seals in the watch.

M1 Mac mini, macOS 14.2;  Watch, series 7 GPS/cellular, watchOS 10.2; iPad Pro 2nd Gen, iPadOS 16.7.3; iPhone 12 Pro, iOS 17.2; TV 4th Gen, tvOS 17.2; HomePods, audioOS 17.2 and Airport Express w/ Airplay 2

"If you have Apple Watch Ultra or later, you can wear it during recreational scuba diving up to 130 feet (40 meters) and other activities like swimming, showering, and water skiing."

Apple's own support page on water resistance states that an Apple Watch Ultra or later should be ok for showering.

It would be nice if they’d refund you based on the news of no spo2 sensor now cause of the lawsuit. I want to return mine that was a reason for buying it over the other watches.

LanManDragn wrote:

It would be nice if they’d refund you based on the news of no spo2 sensor now cause of the lawsuit. I want to return mine that was a reason for buying it over the other watches.

Your O2 sensor has not been affected. Nor, based on available information, will it be. So, best not to borrow trouble.

😂😂😂

Yes, it's not a good idea and I explained why.