Apple Watch Ultra 'Depth' and 'Siren' Apps Appear on App Store Ahead of Device's Launch This Friday

Apple has listed two new apps on the App Store that are made exclusively for the Apple Watch Ultra: "Siren" and "Depth."

siren depth apps
Siren is designed for emergency situations if users become lost or injured to draw attention to their location. When the Action button on Apple Watch Ultra is long-pressed, Siren emits a unique 86-decibel sound pattern which can be heard up to 600 feet (180 meters) away.

The Depth app is for use during recreational underwater activities to 130 feet (40 meters), from snorkeling, and free diving, to simply playing in a swimming pool.

Users can see their current depth, water temperature, duration under water as well as the maximum depth they've reached to 130 feet (40 meters). It can automatically activate as soon as Apple Watch Ultra is submerged, or manually launched like any other app.

The two apps are exclusively for Apple Watch Ultra models, which launch on Friday, September 23, so they can't actually be used by the general public yet.

Apple Watch Ultra models will come with the two apps pre-installed, and if users opt to delete the stock apps and then change their minds, they'll be able to re-download both from the App Store.

Priced at $799, the ‌Apple Watch Ultra‌ is available in a single 49mm size, with Trail, Ocean, and Alpine band options available. The new smartwatch can be pre-ordered now and launches alongside the second-generation AirPods Pro this coming Friday. For more on the ‌Apple Watch Ultra‌'s design and features, be sure to check out our dedicated roundup.

Related Roundup: Apple Watch Ultra 3
Related Forum: Apple Watch

Popular Stories

maxresdefault

Apple Shows Off a Key Reason to Upgrade to the iPhone 17

Saturday February 7, 2026 9:26 am PST by
Apple today shared an ad that shows how the upgraded Center Stage front camera on the latest iPhones improves the process of taking a group selfie. "Watch how the new front facing camera on iPhone 17 Pro takes group selfies that automatically expand and rotate as more people come into frame," says Apple. While the ad is focused on the iPhone 17 Pro and iPhone 17 Pro Max, the regular iPhone...
wwdc sans text feature

Apple Rumored to Announce New Product on February 19

Thursday February 5, 2026 12:22 pm PST by
Apple plans to announce the iPhone 17e on Thursday, February 19, according to Macwelt, the German equivalent of Macworld. The report, citing industry sources, is available in English on Macworld. Apple announced the iPhone 16e on Wednesday, February 19 last year, so the iPhone 17e would be unveiled exactly one year later if this rumor is accurate. It is quite uncommon for Apple to unveil...
Apple Logo Zoomed

Tim Cook Teases Plans for Apple's Upcoming 50th Anniversary

Thursday February 5, 2026 12:54 pm PST by
Apple turns 50 this year, and its CEO Tim Cook has promised to celebrate the milestone. The big day falls on April 1, 2026. "I've been unusually reflective lately about Apple because we have been working on what do we do to mark this moment," Cook told employees today, according to Bloomberg's Mark Gurman. "When you really stop and pause and think about the last 50 years, it makes your heart ...
Finder Siri Feature

Why Apple's iOS 26.4 Siri Upgrade Will Be Bigger Than Originally Promised

Friday February 6, 2026 3:06 pm PST by
In the iOS 26.4 update that's coming this spring, Apple will introduce a new version of Siri that's going to overhaul how we interact with the personal assistant and what it's able to do. The iOS 26.4 version of Siri won't work like ChatGPT or Claude, but it will rely on large language models (LLMs) and has been updated from the ground up. Upgraded Architecture The next-generation...
iOS 26

iOS 26.3 and iOS 26.4 Will Add These New Features to Your iPhone

Tuesday February 3, 2026 7:47 am PST by
While the iOS 26.3 Release Candidate is now available ahead of a public release, the first iOS 26.4 beta is likely still at least a week away. Following beta testing, iOS 26.4 will likely be released to the general public in March or April. Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far. iOS 26.3 iPhone to Android Transfer Tool iOS 26.3 makes it easier...

Top Rated Comments

Gmaster Avatar
44 months ago
“…Siren emits a unique 86-decibel sound pattern…”
My mom needs this sound as her ringtone so she doesn’t miss calls.
Score: 18 Votes (Like | Disagree)
WiiDSmoker Avatar
44 months ago

Apple Watch Ultra models will come with the two apps pre-installed, and if users opt to delete the stock apps and then change their minds, they'll be able to re-download both from the App Store.

Jesus
Thanks Jesus

Seth
Score: 13 Votes (Like | Disagree)
Urbanpixels Avatar
44 months ago

They don’t come pre installed?
Apple Watch Ultra models will come with the two apps pre-installed, and if users opt to delete the stock apps and then change their minds, they'll be able to re-download both from the App Store.

Jesus
Score: 10 Votes (Like | Disagree)
steve09090 Avatar
44 months ago

I don't understand why the watch itself can go to a maximum of 100M but the Depth app stop at 40.

I don't dive so I probably won't use it under 40M, but I find it strange. Is it the sensor who isn't capable to calculate the depth and/or temperature under the 40M?

edit: i answer to myself lol. Seems indeed an hardware issue as apple website claims that the sensor is able to calculate up to 40M so it’s probably the good explaination.
There was a great explanation by an actual Dive Instructor on Waveforms Podcast (MKBHD) where they interviewed 3 experts in diving, running, and hiking. It's worth a listen.



Specifically, the 40 metres relates to where recreational divers can dive using compressed air. Below 40 metres it becomes a technical dive as you have a different composition of gases in the tank and you have a dive computer that will organise a different mixture of those gases depending on the depth. The Apple Watch cannot do that which is why they are saying it needs to be used by recreational divers. (By his estimates), only 5% of people who dive do technical diving, with the rest doing recreational diving.

You can use it below 40 metres and the watch will still function fine, but you cannot use it as your Dive Computer.

Danny (Scuba instructor): https://bit.ly/Scuberro ('//www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqa0ExbFRGWHVud0FlWHRxd1F1bDc0bzJObVJDZ3xBQ3Jtc0tueTc2X2RzQUR5QkotbUkxQ0dtcWpiNktwX2Zxdkp2SnY5VTduT29Ea09tcGVRR2FqdEgxaUFCM0ducklUYVFiQXF2aFRhbzlxQnhzbVVIUWV0WjBraF9UYTJrNkV3ekJGa1VnTzY2U3ZIeDZEQ0U0VQ&q=https%3A%2F%2Fbit.ly%2FScuberro&v=vGlbCM2coDU')
Hellah Sidibe (Runner/YouTuber): https://bit.ly/HellahGoodYoutube ('//www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqbXdfQWxFdFNoQkljSzdrMEpPSGxsSzRvbjNSd3xBQ3Jtc0ttczhfTmFsRVJJMUVXelFHTFdEdHNaYzJXU2M1d043cmlvTGRWcXhlZGswb1IxakVjQlhWY1IxT2cxNFhCenhLeGRfYjNEZTdxenpqUTl3N09IS1FrT0tsTXNweVNtQTRCT0tvMW9PR3VWcUpKcmNobw&q=https%3A%2F%2Fbit.ly%2FHellahGoodYoutube&v=vGlbCM2coDU')
Guillermo Ponzo (Mountaineer): https://bit.ly/guillermopunzo ('//www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqbG8zdVVVZVR5eHZaQkEzcUxSM0JydnU1WFhrZ3xBQ3Jtc0trYnh3SnQ5VVB2YmdoZmJMZF9GcUhmX0NYazEyRk9mRUh0YWZhNXNzYnZMZXFzRzhEOUQ2cllJVTBpYWl3eFRmQ1hKbTN3OWs0MnJiMXc5Ym00c0V4MjM0eVFBdllaZnJFb3l4M1B1c1laZnV6c0lycw&q=https%3A%2F%2Fbit.ly%2Fguillermopunzo&v=vGlbCM2coDU')
Score: 9 Votes (Like | Disagree)
timmyh Avatar
44 months ago

Wonder how much they’re going to charge for that Oceanic dive computer app?
As a free app on the App Store, Oceanic+ will include depth tracking (including depth alarms), GPS tracking, logbook (up to 12 dives), snorkeling, and more.

For more advanced diving options such as No Decompression Limit, users will be required to purchase an Oceanic+ subscription plan ($4.99/day, $9.99/month, or $79/year). Oceanic+ will be available on the App Store later this fall.
Score: 4 Votes (Like | Disagree)
NicoTRZ Avatar
44 months ago

There was a great explanation by an actual Dive Instructor on Waveforms Podcast (MKBHD) where they interviewed 3 experts in diving, running, and hiking. It's worth a listen.



Specifically, the 40 metres relates to where recreational divers can dive using compressed air. Below 40 metres it becomes a technical dive as you have a different composition of gases in the tank and you have a dive computer that will organise a different mixture of those gases depending on the depth. The Apple Watch cannot do that which is why they are saying it needs to be used by recreational divers. (By his estimates), only 5% of people who dive do technical diving, with the rest doing recreational diving.

You can use it below 40 metres and the watch will still function fine, but you cannot use it as your Dive Computer.

Danny (Scuba instructor): https://bit.ly/Scuberro ('//www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqa0ExbFRGWHVud0FlWHRxd1F1bDc0bzJObVJDZ3xBQ3Jtc0tueTc2X2RzQUR5QkotbUkxQ0dtcWpiNktwX2Zxdkp2SnY5VTduT29Ea09tcGVRR2FqdEgxaUFCM0ducklUYVFiQXF2aFRhbzlxQnhzbVVIUWV0WjBraF9UYTJrNkV3ekJGa1VnTzY2U3ZIeDZEQ0U0VQ&q=https%3A%2F%2Fbit.ly%2FScuberro&v=vGlbCM2coDU')
Hellah Sidibe (Runner/YouTuber): https://bit.ly/HellahGoodYoutube ('//www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqbXdfQWxFdFNoQkljSzdrMEpPSGxsSzRvbjNSd3xBQ3Jtc0ttczhfTmFsRVJJMUVXelFHTFdEdHNaYzJXU2M1d043cmlvTGRWcXhlZGswb1IxakVjQlhWY1IxT2cxNFhCenhLeGRfYjNEZTdxenpqUTl3N09IS1FrT0tsTXNweVNtQTRCT0tvMW9PR3VWcUpKcmNobw&q=https%3A%2F%2Fbit.ly%2FHellahGoodYoutube&v=vGlbCM2coDU')
Guillermo Ponzo (Mountaineer): https://bit.ly/guillermopunzo ('//www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqbG8zdVVVZVR5eHZaQkEzcUxSM0JydnU1WFhrZ3xBQ3Jtc0trYnh3SnQ5VVB2YmdoZmJMZF9GcUhmX0NYazEyRk9mRUh0YWZhNXNzYnZMZXFzRzhEOUQ2cllJVTBpYWl3eFRmQ1hKbTN3OWs0MnJiMXc5Ym00c0V4MjM0eVFBdllaZnJFb3l4M1B1c1laZnV6c0lycw&q=https%3A%2F%2Fbit.ly%2Fguillermopunzo&v=vGlbCM2coDU')
Well thank you! Seems like a more plausible explanation than the one of the supported depth (no offence Nightfox, it was interesting as well)
Score: 3 Votes (Like | Disagree)