A battery you
can’t outrun.
Check back later for availability
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The longest battery life of any Apple Watch. Now with up to 45 hours of Max Extended Workout tracking.1
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All-new Health Sensing System delivers the most accurate heart rate sensing in a wearable.2
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A new personal readiness score tells you whether to rest or put yourself to the test.
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More frequent heart rate variability, or HRV, readings help provide insights on stress and recovery.
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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.
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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.
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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.
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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.
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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.
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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.10
Available in English and Spanish.
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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.
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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.
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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 tracking5 and up to 45 hours of Max Extended Workout tracking — enough time to complete a 100‑mile race.1
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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.
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A new read on HRV.
Now you can better understand insights on stress and recovery with HRV in the Vitals app.11 HRV is sampled as often as every five minutes, both during the day and night.
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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.12
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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.
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Measure your blood oxygen. It’s a breathtaking innovation.
The sensor and app in Apple Watch Ultra 4 allow you to take on‑demand readings of your blood oxygen as well as background readings, day and night.13
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Receive hypertension notifications.
Ultra 4 can notify you if it identifies patterns of hypertension.14 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.
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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.15
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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.16
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Revisit conversations in the Siri app.
Ask Siri a question on your iPhone or any other Apple device synced with iCloud, and pick up where you left off on your Apple Watch. Pin conversations and see the same content, including images, across your devices. Here’s to a little more conversation and a lot more Siri.
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Siri Recap can summarize your chats to refresh your memory.
Siri Recap transforms your conversations into high-level notes, so you can stay focused and present. Each Siri Recap includes a title, a summary, and key points that you can review in the Siri app on your Apple Watch or iPhone. You can turn Siri Recap off or on at any time from Control Center or choose where and when it takes notes, such as only at work or never at night.17
Siri Recap coming in beta late 2026.
Usage limits may apply. -
Live Rewind catches what you missed.
Did someone say something you couldn’t hear in a loud restaurant or share cooking instructions you didn’t quite catch? Just double-click the Digital Crown, and Live Rewind transcribes what was said in the last 15 seconds. You can ask Siri about the content of the transcript or save it to the new Siri app to revisit later.17
Live Rewind coming in beta late 2026.
Usage limits may apply. -
Sound Recognition notifies you when it detects important sounds.
Designed for those who are Deaf or hard of hearing, Sound Recognition can listen for sounds you don’t want to miss, like sirens, alarms, doorbells, or a crying baby. You’ll be alerted with a notification on your watch — even when your iPhone isn’t nearby.18
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Shazam can now automatically tell you what song is playing.
Shazam can instantly detect the music playing around you and automatically display the song title and artist’s name on the Music Recognition widget in the Smart Stack — all without a tap. You can also see the song info when you use the Shazam app or Siri. Talk about music to your ears.19
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Master the Multisport workout.
Ultra 4 can recognize when you transition between swimming, cycling, and running — and record your metrics for each. Tracking your segments for a triathlon has never been easier.
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Watch your cycling metrics on your iPhone.
When you start a cycling workout on Ultra 4, it automatically shows up as a Live Activity on your iPhone — making it easier to see and safer when it’s mounted on your handlebars.
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Find your Power Zones.
Connect your personal power meter to Ultra 4 to estimate your Functional Threshold Power (FTP), the highest level of intensity theoretically maintainable for an hour. Your FTP enables Power Zones to show your current power, time in a zone, and average power.
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Crank it up with Workout Views.
Want to check your current speed as you ride? Workout Views put your chosen metrics front and center so they’re easy to track. And it’s simple to switch between metrics like Heart Rate Zones, splits, and elevation by turning the Digital Crown.
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Strength training. Easy flex.
The Workout app features extensive strength training capabilities, so you can more accurately track your bench press and barbell lift workouts. Making light work of your heavy lifting.
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Make a splash with swim stroke.
When you’re in a pool, Ultra 4 automatically detects your swim stroke, calculates auto sets with distance and pace, and provides advanced metrics like SWOLF to measure efficiency.
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Know what’s Up Next.
For any Custom Workout you create, the Up Next view allows you to see what’s remaining in your current interval and what you’ll be tackling next. Pro moves.
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Retrace your steps with Backtrack.
To get back on route, Backtrack uses GPS data to automatically create a path of where you’ve been when you’re off grid. You can easily add waypoints for locations, like trailheads or campsites.
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Aim higher with a Hiking workout.
Ultra 4 has a Hiking workout that lets you track your pace, distance, elevation gain, and calories burned. See how high you’ve climbed in real time, and get your total elevation gain when you’re finished. Sky’s the limit.
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Blaze a trail with custom routes.
Create and save custom walking and hiking routes on your iPhone. Choose from different route options: One way, out and back, or a loop — even get turn-by-turn directions — right from your wrist.
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Download offline maps.
Plan ahead and download a map of where you’ll be hiking on your iPhone. It will automatically sync to your watch, so you’ll know where to go, even when you don’t.20
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Create waypoints in the Compass app.
Mark your current location or drop one on a trailhead or campsite. Cellular waypoints automatically mark your most recent location within your available networks.
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Go deeper with full dive capabilities.
The Oceanic+ app from Huish Outdoors and other apps turn Ultra 4 into a fully capable dive computer.21 Turn the Digital Crown to get useful data at a glance. Equipped with all the safety warnings you’d expect, the app constantly calculates and monitors your dive parameters.
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Let the Tides app guide you.
Get seven days of estimated information including rising, falling, high, and low tides, sunrise, and sunset. Check conditions at shorelines around the world, or search over 115,000 beaches by name.
Get help with Emergency SOS via satellite.
With a few simple taps, Ultra 4 can gather critical information, and reach out to emergency services, so you can get the assistance you need as quickly as possible.22
Fall Detection at the ready.
If Ultra 4 detects that you’ve taken a hard fall, it can automatically help connect you with emergency services, provide dispatchers with your location, and notify loved ones.22
Crash Detection. Your guardian on the go.
If you’ve been in a severe car crash, Ultra 4 can automatically help call emergency services, share your location, and notify your emergency contacts.22
Activate a siren.
If you need to attract attention when you’re lost or injured, hold down the Action button to activate a siren that can be heard up to 600 feet or 180 meters away.
Stay connected and safe with Messages.
Use Messages to stay in touch or contact emergency services. You can also send and receive texts, emoji, and Tapbacks via iMessage or use SMS.
Be found with Find My.
Use Find My to share your location so friends and family know where you are. And with Check In, your watch can automatically notify someone when you arrive at your destination.
Let there be flashlight.
Illuminate nearby objects, alert others when you’re running at night, or shine a light in a campsite. You can also customize the Action button to control it.
Set up your Medical ID.
In an emergency, first responders are able to quickly access critical medical information — like allergies or medications — directly from your Ultra 4.
All you need is your watch.
With Apple Watch Ultra 4, you can keep in touch with the people and things that matter most no matter where you are.23 Cellular connectivity lets you text, talk, listen to music or podcasts, and work out on the go.
Keep exploring Apple Watch.
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New Apple Watch
Ultra 4
- Natural titanium
- Black titanium
- +more
The ultimate sports and adventure watch.
Currently viewing, Apple Watch Ultra 4
49mm titanium case
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Wide-angle Always-On Retina display
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Up to 3000 nits
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New Apple Watch Series 12
- Aluminum dark bronze
- Aluminum light gold
- Aluminum black
- Aluminum space gray
- Titanium radiant gold
- Titanium natural
- Ceramic pearl white
- Ceramic night blue
- +more
The ultimate way to
watch your health.
46mm or 42mm aluminum, titanium, or ceramic case
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Wide-angle Always-On Retina display
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Up to 2000 nits
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Made with 45% recycled material by weight.
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Manufactured with 100% renewable electricity.
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Ships in compact packaging for 30% more units per trip.
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A plan as innovative as our products.
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Privacy. That’s Apple.
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Innovation that’s accessible by design.