The Apple Watch Ultra 4 and Samsung Galaxy Watch Ultra are designed for users who want more than a basic smartwatch.

Both are rugged, premium watches aimed at fitness enthusiasts, outdoor users, travellers and people who want advanced health and activity tracking.

Apple’s new Ultra 4 brings the S11 chip, improved health sensors, new wellness features and longer battery life. Samsung’s Galaxy Watch Ultra focuses on rugged construction, fitness tracking, outdoor activities and deep integration with Galaxy smartphones.

But which Ultra smartwatch is actually better?

Let’s compare them.

Quick Comparison

1. Design and Durability

Both watches are built for demanding use rather than simply looking like traditional smartwatches.

The Apple Watch Ultra 4 continues Apple’s rugged titanium design and remains a large 49mm-class watch. The design is familiar, but Apple has refined the body while keeping the Ultra identity.

Samsung Galaxy Watch Ultra also uses a rugged premium construction and is designed for outdoor activities.

Both are suitable for:

• Hiking
• Running
• Cycling
• Swimming
• Travel
• Outdoor adventures
• Everyday rugged use

If you prefer Apple’s rectangular display, Ultra 4 has the advantage. If you prefer a more traditional round-watch appearance, Samsung may be more attractive.

Winner: Tie

2. Display

Both watches offer bright, high-quality displays designed to remain readable during outdoor activities.

Apple uses its familiar rectangular Apple Watch interface, while Samsung uses a round display.

The choice largely comes down to personal preference.

Apple’s rectangular screen is excellent for viewing notifications, health information and apps, while Samsung’s circular design feels more like a traditional watch.

Winner: Tie

3. Health Tracking

Health tracking is one of the biggest strengths of both watches.

Apple Watch Ultra 4 introduces an improved Health Sensing System, with more frequent heart-rate measurements and better heart-rate accuracy. It also introduces features such as Readiness Score and Health Age.

Samsung Galaxy Watch Ultra also provides extensive health and fitness tracking through Samsung Health.

For users who want detailed health trends, sleep information and workout data, both watches are excellent.

Winner: Apple Watch Ultra 4

4. Fitness and Outdoor Tracking

Both watches are designed for serious fitness users.

Apple Watch Ultra 4 offers advanced workout tracking, GPS capabilities and features designed for outdoor activities.

Samsung Galaxy Watch Ultra is also built around fitness and outdoor use, with strong activity tracking and Samsung Health integration.

For everyday running, walking, cycling and gym workouts, either watch is more than capable.

Winner: Tie

5. GPS and Navigation

For outdoor enthusiasts, GPS performance is extremely important.

Both watches provide advanced positioning capabilities and are designed for outdoor activities.

Apple Watch Ultra 4 supports dual-band GPS and is designed for demanding outdoor navigation.

Samsung Galaxy Watch Ultra also offers advanced positioning features aimed at runners, hikers and outdoor users.

For most users, both should provide excellent tracking.

Winner: Tie

6. Battery Life

This is one area where the Apple Watch Ultra 4 has made a significant improvement.

Apple rates the Ultra 4 for up to 50 hours of normal use, compared with 42 hours for the previous Ultra generation.

Samsung Galaxy Watch Ultra also offers strong battery life compared with standard Galaxy Watch models.

However, actual battery performance depends on GPS usage, display settings, cellular connectivity and health tracking.

Winner: Apple Watch Ultra 4

7. Smart Features

Apple Watch Ultra 4 is powered by Apple’s new S11 chip, enabling new features in watchOS 27.

Apple has introduced Audio Intelligence features including:

• Live Rewind
• Sound Recognition
• Siri Recap
• Improved Siri capabilities
• Readiness insights
• Health Age

These features make the Ultra 4 more than a fitness tracker.

Samsung Galaxy Watch Ultra uses Wear OS and provides access to Google’s services, apps and Samsung’s own ecosystem.

Both are powerful smartwatches.

Winner: Tie

8. iPhone Compatibility

This is where the decision becomes much easier.

If you use an iPhone, Apple Watch Ultra 4 is the obvious choice.

Apple Watch is built around iPhone integration and provides access to Apple’s notifications, apps, health data and other ecosystem features.

Samsung Galaxy Watch Ultra is designed primarily around Android and Samsung Galaxy smartphones.

Winner: Apple Watch Ultra 4

9. Android Compatibility

For Android users, the situation is reversed.

Samsung Galaxy Watch Ultra is designed to work with Android and provides its best experience when paired with a Samsung Galaxy phone.

Apple Watch Ultra 4 isn’t designed for normal Android use.

Winner: Samsung Galaxy Watch Ultra

10. Which Is Better for Athletes?

Both watches are excellent for athletes, but your smartphone ecosystem still matters.

Apple Watch Ultra 4 is particularly attractive to runners, cyclists and outdoor athletes already using an iPhone.

Samsung Galaxy Watch Ultra is a strong option for Android and Galaxy users who want fitness tracking without leaving the Samsung ecosystem.

For most people, the difference in fitness capabilities is less important than the phone they already use.

Winner: Depends on your smartphone

Apple Watch Ultra 4 vs Galaxy Watch Ultra: Which Should You Buy?

Choose Apple Watch Ultra 4 if you:

• Use an iPhone
• Want advanced health tracking
• Want strong fitness features
• Travel or participate in outdoor activities
• Want excellent Apple ecosystem integration
• Want longer Ultra battery life
• Prefer Apple’s smartwatch interface

Choose Samsung Galaxy Watch Ultra if you:

• Use a Samsung Galaxy smartphone
• Use Android
• Prefer a round watch design
• Want Samsung Health integration
• Want strong fitness and outdoor features
• Prefer Google’s Wear OS ecosystem

Apple Watch Ultra 4 vs Samsung Galaxy Watch Ultra: Comparison

Final Verdict

The Apple Watch Ultra 4 and Samsung Galaxy Watch Ultra are both premium rugged smartwatches, but they are designed for different ecosystems.

The Apple Watch Ultra 4 is the better choice for iPhone users. It combines excellent health tracking, fitness features, outdoor capabilities, a powerful S11 chip and deeper Apple integration. Its battery life has also improved significantly, reaching up to 50 hours.

Samsung Galaxy Watch Ultra is the better choice for Android and Samsung Galaxy users. It offers a rugged design, strong health and fitness tracking and deep integration with Samsung’s ecosystem.

Our Recommendation

Best for iPhone: Apple Watch Ultra 4

Best for Samsung Galaxy: Galaxy Watch Ultra

Best Health Tracking: Apple Watch Ultra 4

Best Android Integration: Galaxy Watch Ultra

Best Apple Integration: Apple Watch Ultra 4

Best Battery: Apple Watch Ultra 4

Best for Outdoor Use: Tie

Bottom Line

If you own an iPhone, choose Apple Watch Ultra 4.

If you own a Samsung Galaxy or compatible Android phone, choose Samsung Galaxy Watch Ultra.

For most buyers, your smartphone ecosystem should be the first factor you consider before comparing individual features.

Frequently Asked Questions

Is Apple Watch Ultra 4 better than Samsung Galaxy Watch Ultra?

For iPhone users, Apple Watch Ultra 4 is the better choice. For Samsung and Android users, Galaxy Watch Ultra provides better ecosystem integration.

Which has better battery life?

Apple Watch Ultra 4 is rated for up to 50 hours of normal use. Actual battery life on both watches varies depending on GPS, cellular, display and health-tracking usage.

Which is better for fitness?

Both are excellent fitness watches. Apple Watch Ultra 4 is particularly strong for iPhone users, while Galaxy Watch Ultra is an excellent choice for Android users.

Which has better health tracking?

Both provide advanced health and fitness tracking. Apple Watch Ultra 4 adds newer features such as Readiness Score and Health Age along with improved heart-rate sensing.

Can I use Apple Watch Ultra 4 with Android?

No. Apple Watch Ultra 4 is designed to work with iPhone.

Can I use Samsung Galaxy Watch Ultra with iPhone?

Samsung’s Ultra watches are primarily designed for Android and Galaxy smartphones, so iPhone users should choose Apple Watch instead.

Which smartwatch should you buy in 2026?

Choose Apple Watch Ultra 4 if you use an iPhone and Samsung Galaxy Watch Ultra if you use Android or a Samsung Galaxy phone.