With a titanium case and MIL-STD 810H certification, Apple Watch Ultra is built to withstand extreme environments. It's resistant to high and low temperatures, salt spray, sand and dust, and can withstand underwater pressure up to 100 meters.

Apple Watch Ultra lasts 33 percent longer than Apple Watch Series 8 - up to 36 hours. In low-battery mode, it lasts up to 60 hours.

Apple Watch Ultra features dual-frequency GPS for more precise location information. That's useful for navigating in remote areas or high-rise cities.

Apple Watch Ultra has more specialized features designed for extreme sports enthusiasts, such as:

The ability to measure underwater depth and water temperature, the ability to record the user's movement and help them return to their point of origin if needed, and the ability to emit 86 decibels of sound in case of an emergency.

The Apple Watch Ultra features a similar design to the Apple Watch Series 8, but with a more rugged case. It has a 49-millimeter dial, which is larger than the 41-millimeter and 45-millimeter dials of the Apple Watch Series 8.

The feature experience on the Apple Watch Ultra is similar to that of the Apple Watch Series 8, but it has more specialized features designed for extreme sports enthusiasts. For example, the Depth Gauge measures underwater depth and water temperature, the Backtrack feature records the user's movement and helps the user return to the point of origin if needed, and the Siren feature emits an 86-decibel sound in case of an emergency.

Apple Watch Ultra lasts 33 percent longer than Apple Watch Series 8, up to 36 hours. In low-battery mode, it lasts up to 60 hours.

Pros:

Rugged design, longer battery life, more accurate GPS location, more specialized features.

Disadvantages:

Higher price, larger size, not suitable for small-wristed users.

Overall, the Apple Watch Ultra is a highly recommended smartwatch for extreme sports enthusiasts who want a more professional and reliable experience.

For the best GPS location experience, it is recommended that users place the watch on the outside of their wrist when using it outdoors.

For longer battery life, it is recommended that users turn off the GPS or cellular features when they are not in use.

Users are advised to clean their watch regularly to prevent dirt and sweat from clogging the speaker and microphone.

Apple Watch Ultra represents the highest level of smartwatch technology, enabling a more professional experience for extreme sports enthusiasts.

Here are some examples of Apple Watch Ultra in action:

A mountain climber uses the Depth Gauge feature of Apple Watch Ultra to measure underwater depths and the Backtrack feature to record his hiking trajectory.

A marathoner uses GPS on an Apple Watch Ultra to track his route and cellular to answer calls and text messages during a run.

A surfer uses the siren feature of Apple Watch Ultra to call for help in case of danger.