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. Over-training or poor sleep can raise your stress and lower your HRV. With the most accurate heart rate sensing in a wearable, 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.

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.

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 warm-up 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 GPS + Cellular.