In Sunday's video, DC Rainmaker wanted to test the diving capabilities of the Apple Watch Ultra. This device can be regarded as a professional diving equipment. It has passed the EN13319 certification and is calibrated with a waterproof depth of 100 meters. The device also has a built-in depth application to show how deep the user has dived.
However, there are few opportunities for real deep diving in the hands of the tester, so the test was conducted through a custom desktop diving room. Throughout the controlled "dive" process, the deep application proved to be accurate enough, while also showing the readings the user sees after completion.
When testing the app into a deeper depth than the rated depth, the app displays a bright yellow background, along with the text of "over 130 feet", indicating that it has exceeded the app's maximum capacity, and the device doesn't think so: the Apple Watch Ultra survived the 159-foot simulated depth.

Although the app does not show the depth after 130 feet on the screen "Diver" , the health app shows a deeper depth of the underwater depth. Unlike the watchOS app, the results show that it is "over 144 feet", not exactly the level of the lab setting, but exceeds the level used by Apple in its marketing.

On Saturday, TechRax uploaded a more conventional and eye-catching test of the Apple Watch Ultra to YouTube, demonstrating the collision detection capabilities of the iPhone 14 at the expense of crashing a car.
In a series of tests after unboxing, the YouTube netizen also threw the Apple Watch Ultra face down on the concrete, with only slight scratches in the titanium alloy shell.