Apple Watch Ultra 4 GPS + Cellular 49mm Titanium Case Black Burgundy Trail Loop Small/Medium

The ultimate sports and adventure watch

Apple Watch Ultra 4 is the ultimate running and sports watch with multi-day battery life, game-changing health and fitness tracking, and high-frequency HRV readings for insights on stress, recovery, and your readiness to take on the day.

Multi-Day Battery Life

Ultra 4 is a smartwatch with ultramarathon battery stamina, perfect for runners to go the distance—with up to 45 hours of Max Extended Workout tracking. And you can fast-charge in just 15 minutes for up to 18 hours of use.

Stay Closer to Your Heart Health

The most accurate heart rate sensing in a wearable, Ultra 4 now measures HRV as often as every five minutes for insights on stress and recovery, and background heart rate readings every five seconds.

Apple Watch Ultra 4 health tracker

Better understand your body with advanced health insights. View your overnight health metrics with the Vitals app and get a daily sleep score, track your menstrual cycle, and take readings of your blood oxygen.

Check Your Readiness for the Day

Know when to rest or put yourself to the test. The readiness experience gives you one clear score and can help you determine your capacity to take on the day by analyzing your recent activity, vitals, and sleep.

Ultimate Running and Workout Companion

A superior fitness tracker for distance running, triathlons, mountain biking, strength training, and more. Ultra 4 has precision dual-frequency GPS, Pacer, Heart Rate Zones, Custom Workouts, training load, and more.

Keep Help Close at Hand

A smartwatch that puts your safety first. Ultra 4 can detect a hard fall or severe car crash. If you don’t have cell service or Wi-Fi, built-in satellite communications let you text emergency services to get help.

Siri AI and Audio Intelligence

Using just your voice, engage in natural, back-and-forth conversations, brainstorm ideas, and more with Siri AI. Audio Intelligence helps catch what you missed and summarize conversations with Live Rewind and Siri Recap. Siri AI is rolling out in English. Some Audio Intelligence features coming in beta late 2026. Usage limits may apply.

Rugged and Ready to Go

Ultra 4 is built for extreme environments with a tough titanium case and a strong sapphire crystal display. Water resistant up to 100m, this smartwatch is great for swimmers, divers, and fans of high-speed water sports.

The Freedom of Cellular

With just your smartwatch, you can take and make calls, stream music and podcasts, and listen with your AirPods—even without your iPhone.

Advanced Health and Fitness Tracking

Run with all your heart.
Apple Watch Ultra was designed to be the ultimate running watch, with powerful features that help you train smarter and precision dual-frequency GPS. Now Apple Watch Ultra 4 takes it to the next level with game-changing health and fitness tracking to help you elevate your performance. And new extended battery life for workouts to keep you moving toward your goals. Run better, run longer.

Heartcore innovation.
Heart data is fundamental in tracking your overall health and performance. Redesigned with more capable optical and electrical sensors, the all-new Health Sensing System works with the S11 chip to provide higher-frequency heart monitoring. The updated sensors and larger, more power-efficient green LEDs give you richer heart data for more meaningful insights.

Ready advice.
The new readiness experience can help you determine your capacity to take on the day by providing you with one simple score. Your score is determined each morning by analyzing your recent activity, vitals, and sleep - and it adjusts as you go about your day. So whether you're training for a race or juggling a busy schedule, you can spend your energy on what matters most.

HRV? Check.
Heart rate variability, or HRV, is an indicator of how your body responds to stress and recovery. Overtraining or poor sleep can raise your stress and lower your HRV. With the most accurate heart rate sensing in a wearable,2 Apple Watch Ultra 4 measures HRV as often as every five minutes and takes background heart rate readings every five seconds - the most frequent sensing ever for Apple Watch. And with the updated Heart Rate app and new watch face complications, you can easily view your readings anytime.

• 60x more frequent background heart rate readings than Ultra 3
• 24x more frequent HRV readings than Ultra 3

Run circles around your data.
Ultra 4 goes the extra mile to ensure that you can precisely track and analyze your running workouts. With real-time metrics, deeper insights into training and performance, and personalized encouragement, you'll be motivated to hit your goals like never before.

Advance with advanced metrics.
Track your progress with metrics like running power and cadence. And if you create a Custom Workout on your watch or iPhone, you can add work and recovery intervals, set a pace for outdoor workouts, and more. You can even get an estimate of your VO2 max after your run.

Monitor your Heart Rate Zones.
Quickly see your exercise intensity level with Heart Rate Zones, which are automatically calculated and personalized using your health data. You can adjust them manually or set up alerts.

Hit the ground running with the Action button.
It's customizable and gives you quick control over a variety of functions, so you can do things like control a workout, move to your next interval, mark a segment, and more. All with extreme precision.

Keep pace with Pacer.
Set specific time and distance goals with Pacer for a running or outdoor cycle workout, and track whether you're keeping pace.

Get ahead of yourself with Race Route.
Race against your best times on your favorite runs. See how far ahead or behind you are and how far you have to go.

Slay in your lane with Automatic Track Detection.
Ultra 4 automatically detects when you arrive at a track and combines Apple Maps data with precision GPS to deliver the most accurate track running experience. Create a Custom Workout with a warmup period, recovery interval, and more.

Push your progress with enhanced Workout Buddy.
Get real-time encouragement right when you need it with new insights about your pace, distance, and workout progress. And you can finally leave your iPhone at home - all you need is Apple Watch with cellular.

Never miss a step with an improved step tracker.
Whether you're out for a leisurely stroll with your coffee in the morning or running on a treadmill at night, Ultra 4 gives you a more accurate step count and distance measurements all day long. And now you can more easily check your step count, right from your watch face.

Track your training load.
Helpful insights from training load show the impact your workouts have on your body over time, so it's easier to plan when you're training for your next big event.

Step it up with Strava.
Track every run, ride, or hike with real-time motivation. Live Segments show your progress against your PRs and Live Elevation Stats track your climb. Subscribers can also follow Routes hands-free with Off-Route Alerts to stay on track. Your workout data automatically syncs with the Fitness app on iPhone.

Extreme staying power.
With optimized, more efficient workout algorithms, Ultra 4 delivers even longer battery life. While providing up to 50 hours of everyday battery use, it now gives you up to 18 hours of standard workout tracking and up to 45 hours of Max Extended Workout tracking - enough time to complete a 100-mile race.

Boost your performance with a body of metrics.
The more health insights you have, the more empowered you are to take actions that will optimize how you perform. With in-depth clinical validation and FDA-cleared features, Apple Watch Ultra 4 provides a fuller picture of your health, so you can stay informed.

Wake up to your sleep score.
Sleep quality is influenced by factors such as sleep duration, bedtime consistency, how often you wake up, and time spent in each sleep stage. Sleep score analyzes these factors every night and provides a classification and a score. You'll see how the score is calculated, so you can understand the quality of your sleep and learn how to make it more restorative.

A new read on HRV.
Now you can better understand insights on stress and recovery with HRV in the Vitals app. HRV is sampled as often as every five minutes, both during the day and night.

Track and understand changes in your cycle.
Cycle Tracking is with you through every stage of your menstrual health journey. Log your cycle and get predictions for your period, fertile window, and retrospective ovulation estimates. Cycle Tracking can notify you when your cycle patterns are suggestive of perimenopause as well as provide support during menopause.

Follow your heart more frequently.
Ultra 4 uses high-frequency heart rate tracking to monitor your background heart rate, even when you're not working out, and surfaces a value every five seconds in a new watch face complication.

Measure your blood oxygen.
It's a breathtaking innovation. The Health app on iPhone uses data from the sensor in Apple Watch to enable you to take on-demand readings of your blood oxygen as well as background readings, day and night.

Receive hypertension notifications.
Ultra 4 can notify you if it identifies patterns of hypertension. How? The optical sensor provides data to an algorithm that can detect potential hypertension by analyzing how your blood vessels respond to beats of the heart over 30-day periods.

Take an ECG anytime, anywhere.
Check for signs of an irregular heart rhythm, also known as atrial fibrillation, by using the ECG app to generate a single-lead electrocardiogram. You can share your ECG reading with your healthcare provider.

Heart this app.
Check your heart rate at any time with the Heart Rate app. And get notifications of a high or low heart rate or an irregular rhythm.

Redesigned Health app. Your present and future. On tap.
With Apple Intelligence at its core, the redesigned Health app transforms your health and fitness data into proactive insights delivering a whole new view of your health - today and over time. Featuring groundbreaking privacy protections, your personalized hub securely brings together data from your Apple Watch and synced medical records. And since the Health app adapts to you, you'll get a real-time read on your health and longevity.

Insights
Tap into the Insights tab for a quick look at daily metrics and trends in your heart, sleep, fitness, vitals, readiness, and cycle tracking. Apple Intelligence makes sense of your daily habits and offers personalized guidance, like tips on how to improve your sleep routine. It's all about you - right here, right now.

Health Age
Health Age shows you exactly which factors are adding years and which ones are taking them off. With combined data from your Apple Watch like VO2 max, HRV, and sleep, you'll learn what's affecting your Health Age and how to improve it. You can even add biometrics from your blood work for deeper insights.

Longevity
The Longevity tab turns metrics from your Apple Watch and iPhone into helpful analytics that build a foundation for a healthier future. Explore categories like heart health, sleep, and movement to get a clear read on your health. Unlock personal insights by taking in-depth physical assessments at home. The more you understand your health, the better you can take care of it.

Personalized guidance
Personalization is built into every part of the Health app, so you always know where you stand and how to improve. Get timely, personalized guidance powered by Apple Intelligence, like a suggestion to boost your cardio by adding intervals to your morning run. And helpful videos and articles explain the results of your physical assessments with your data layered in so you can better understand your health. It's expert insight, made personal.