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Overview

• The ultimate sports and adventure watch.
• 49mm titanium case
• Wide-angle Always-On Retina display Up to 3,000 nits
• Readiness app
• Recovery HRV
• High-frequency background heart rate tracking
• S11 chip
• Siri AI
• Precision Finding for iPhone
• Up to 50 hours of normal use
• Up to 84 hours in Low Power Mode
• Up to 45 hours of Max Extended Workout tracking

Product Description

The longest battery life of any Apple Watch. Now with up to 45 hours of Max Extended Workout tracking.

All-new Health Sensing System delivers the most accurate heart rate sensing in a wearable.

A new personal readiness score tells you whether to rest or put yourself to the test.

More frequent heart rate variability, or HRV, readings help provide insights on stress and recovery.

Apple Watch Ultra 4 has built‑in safety features that can summon help when you need it most.

Take a closer look.

Finishes. Choose from two aerospace-grade titanium finishes — natural and black. 

Ultra 4 shown in Natural.

Ultra 4 shown in Black.

Battery life and fast charging. Get long-lasting battery life with up to 50 hours of normal use.4 Fast charge in just 15 minutes for up to 18 hours of use.

Health Sensing System. Redesigned with more capable optical and electrical sensors and larger, more power-efficient green LEDs, the sensing system unlocks deeper health and fitness insights.

Durability. Ultra 4 is built to last with a rugged titanium case and a display crafted from sapphire crystal — one of the strongest naturally occurring materials on Earth. And it’s MIL-STD-810H tested for extreme environments.

Water and dust resistance. Ultra 4 is rated WR100 — fit for recreational scuba diving to 40 metres and high-speed water sports. It’s also IP6X dust resistant.

Action button. One quick press gives you precise, physical control over a variety of customisable functions — like starting a workout, marking a segment, advancing to the next interval or turning on the torch.

Make it yours. Choose from beautiful, endlessly versatile strap styles that meet the demands of your daily activities, from workouts to nights out. And create limitless watch face combinations.

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 towards 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 analysing 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 analyse your running workouts. With real‑time metrics, deeper insights into training and performance, and personalised 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 personalised using your health data. You can adjust them manually or set up alerts.

Hit the ground running with the Action button. It’s customisable 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 favourite runs. See how far ahead or behind you are and how far you have to go.

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 mobile connectivity.

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.

With optimised, 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 160-kilometre 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 optimise how you perform. With advanced health tracking 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 analyses 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.10 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 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.

More Sports

Ultra versatile.

Apple Watch Ultra 4 ups your game in every sport. When you’re cycling, it actively monitors your speed and efficiency so you can see your progress in real time. And in the water, it can track your sets as you swim, automatically detect stroke patterns and calculate your total distance. Time to clock your best.

Master the Multisport workout. Ultra 4 can recognise when you transition between swimming, cycling and running — and record your metrics for each. Tracking your segments for a triathlon has never been easier.

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.

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.

Crank it up with Workout Views. Want to check your current speed as you ride? Workout Views put your chosen metrics front and centre 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.

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.

Make a splash with your 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.

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.

Adventure

Geared to go further.

Hiking to new heights and diving to new depths requires specialised tools. Apple Watch Ultra 4 has pioneering features like a powerful compass and a full dive computer, so you can pack light and still be equipped for every expedition.

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 the start of a trail or campsites.

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.

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.

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.

Create waypoints in the Compass app. Mark your current location or drop one on the start of a trail or campsite. Mobile connectivity waypoints automatically mark your most recent location within your available networks.

Go deeper with full dive capabilities. The Oceanic+ app from Huish Outdoors and other apps turn Ultra 4 into a fully capable dive computer.16 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.

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.

On the Go

Connected. Protected.

Ultra 4 is packed with safety features including Fall Detection, Crash Detection, Siren and Emergency SOS. If you need critical help, you can contact emergency services — right from your wrist. Packed with innovative safety firsts, Apple Watch Ultra 4 has your back. It’s designed to summon help when you need it most — even if you can’t reach your iPhone.

Get help with Emergency SOS. 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.	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.	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.
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 180 metres 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.
Torch at the ready. Illuminate nearby objects, alert others when you’re running at night or shine a light in a campsite. You can also customise the Action button to control it.	Set up your Medical ID. In an emergency, paramedics 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.18 Mobile connectivity lets you text, talk, listen to music or podcasts and work out on the go.

Apple Watch Ultra 4 and the environment.

Our values lead the way.

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