Lesser-known Apple Watch Ultra 2 features you should try

Depth App Quick Start

The Depth app shows depth, max depth, water temperature, and time underwater, and can auto-launch when you descend beyond 1 m for more than 5 s.

On Ultra, you can assign Dive to the Action button for one-press starts. The Depth app supports recreational use to 40 m (130 ft); use a third-party dive-computer app (e.g., Oceanic+) for decompression info.

Custom Waypoints With Compass

Inside the Compass app, Ultra 2 users can drop custom waypoints to mark essential spots like your car, campsite, or trailhead. This makes navigating back simple and stress-free. You can customize the label, symbol, and color for each waypoint to identify them at a glance.

It’s especially helpful in remote or unfamiliar locations. Many users overlook this function, but it’s beneficial for hiking, traveling, or just marking where you left your gear during a run.

Emergency Alert

The Apple Watch Ultra 2 includes an 86-decibel emergency siren designed to alert others if you’re in danger or need help. To trigger Siren quickly, press and hold the Action button (or open the Siren app). Use the side button to access Emergency SOS if you need to contact services.

This avoids menus so you can alert others immediately with the 86-decibel Siren. It’s ideal for discreet emergencies like being lost or injured in a remote area. It’s a powerful, underused feature that could be life-saving when seconds matter.

Auto Backtrack Trail Maps

Backtrack in the Compass app records your trail using GPS so you can retrace your steps later. Start it from Compass or assign it to the Action button on Ultra models. It works without cellular or Wi-Fi.

Many users miss the fact that this feature works even without cellular or Wi-Fi. It’s tucked under the Compass app, and can be a lifesaver in remote areas where maps and directions aren’t available.

Precision Start for Workouts

Precision Start lets you begin workouts on time instead of the default countdown. Precision Start removes the countdown so you tap Start (or press the Action button) at the exact moment you want to begin.

Athletes prefer this because it lets them get into the correct position before launching a run or HIIT session. Many users miss it, but it’s one of those small settings that can make your workouts feel more in control and accurate.

Night Mode Compass Activation

On Ultra 2, the Wayfinder and Modular Ultra faces support Auto Night Mode, turning the interface red after dark (set Night Mode to Auto). You don’t need to rotate the Digital Crown to enable it.

Most people miss this trick because it’s not clearly labeled. Night Mode is perfect for stargazing, night hikes, or camping anywhere bright screens might ruin your sight adaptation. Once discovered, it’s one of those smart details that feels game-changing.

Modular Ultra Face Hack

The Modular Ultra watch face is more customizable than users think. Modular Ultra supports many complication slots, including third-party apps, and can be a powerful “control hub” face.

On Ultra 2, you can also set Night Mode to Auto on Modular Ultra for better nighttime visibility. It’s one of the most functional faces available, and with a bit of tweaking, it becomes a true control hub.

Action Button Multi-Functions

The Action button on the Ultra 2 isn’t just for workouts. You can assign it to start a dive, drop a waypoint, use Backtrack, or even launch a Shortcut. Depending on your activity mode, it supports multiple uses.

For example, in Workout mode, it starts tracking, but in Compass mode, it could drop a pin. Few users explore its versatility, but customizing this button makes the watch far more powerful and tailored to your lifestyle.

Battery Optimized Hiking Mode

In Settings > Workout, turn on Fewer GPS and Heart Rate Readings (available with Low Power Mode) to extend battery during long hikes. It’ll still track your hike accurately while drastically extending battery life.

Apple rates Ultra 2 for up to 36 hours of normal use or up to 72 hours in Low Power Mode, and up to 17 hours of workout use in Low Power Mode with full GPS and heart-rate.

Many users skip this setting, but it’s ideal for backpackers and campers who need tracking without the battery drain. It’s a smart way to maximize the Ultra’s endurance.

Double Tap for Flashlight

Double Tap controls actions like answering calls, media playback, and Smart Stack—it can’t launch Flashlight. For instance, either assign Flashlight to the Action button (Ultra) or press the side button to open Control Center and tap Flashlight. This is incredibly handy in the dark when you don’t want to fumble through menus or swipe around.

It’s a lesser-known but handy shortcut, especially during outdoor runs, hikes, or power outages. You can set it up under Accessibility settings, giving you instant light without stopping whatever you’re doing.

Oceanic+ App Dive Boost

While the Depth app handles basic diving, the Oceanic+ app offers a full dive computer experience, including depth profiles, no-decompression limits, and ascent rate alerts. It’s certified for recreational diving and turns the Ultra 2 into a legit dive tracker.

The app does require a subscription, but the safety data and post-dive logs are worth it for serious divers. If you’re already diving with Ultra 2, this app takes underwater tracking to the next level.

Offline Maps Without iPhone

Download offline maps on your iPhone, then turn on Sync with Apple Watch so those maps are available on the watch even when your iPhone isn’t nearby. Once you’re out of range, the map still loads, showing trails, locations, and directions.

It’s perfect for backpackers, travelers, or anyone hiking with just the watch. Many users don’t know this works independently, but it’s a real upgrade for navigation freedom.

Workout View Customization

The Ultra 2 lets you fully customize workout screens to show only what matters to you: heart rate zones, pace, elevation, etc. Under Workout settings, tap “Workout Views” and arrange the layout to suit your needs.

You can even add a map or remove clutter for simpler tracking. Most users use the default view, but customizing your data panels helps focus on goals and gives a more personalized workout experience.

While mastering Workout, don’t miss the Galaxy Watch Ultra vs. Apple Watch Ultra 2 (Review) to find the smartwatch that truly fits your needs.

Smart Stack Navigation Tips

The Ultra 2’s Smart Stack gives you real-time widgets with just a flick of the Digital Crown. But most users don’t realize you can customize which widgets show up and in what order. Open Smart Stack and add/pin widgets (Weather, Compass, Elevation, Activity Rings, etc.), then reorder them to show what you need first.

It’s a dynamic tool for glances, and customizing it makes your watch more efficient. You’re missing out on serious convenience if you haven’t tailored your Smart Stack yet.

Exploring Smart State Navigation Tips? You’ll also want to check out What to Know Before Buying Used or New Apple Watch before making your next big move.

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This slideshow was made with AI assistance and human editing.