APPLE Watch Ultra 4 GPS + Cellular Natural Titanium, Desert Alpine Loop, M, 49mm (MJAF4QF/A)

WATCH ULTRA 4 Battery record. The highlights. The longest battery life of any Apple Watch. Now with up to 45 hours with maximum extended workout tracking. The new health detection system provides the most precise heart rate measurement in a wearable. A new personal readiness score tells you when it's time for a break or a new personal best. More frequent heart rate variability (HRV) measurements provide insights into stress and recovery. With the Apple Watch Ultra 4 featuring integrated satellite communication, you stay connected and safe—even without cellular service. Take a closer look. Finishes. Choose from two aerospace-grade titanium finishes: Natural and Black. The Ultra 4 shown is in Black. Finishes. Choose from two aerospace-grade titanium finishes: Natural and Black. The Ultra 4 shown is in Natural. Battery life and fast charging. With normal use, you have a battery life of up to 50 hours. And with just 15 minutes of fast charging, the battery lasts up to 18 hours. Health detection system. The redesigned system with more powerful optical and electrical sensors and larger, more energy-efficient green LEDs enables more comprehensive insights into health and fitness. Durability. The Ultra 4 is built to last. It comes with a robust titanium case and a sapphire crystal display—one of the hardest naturally occurring materials in the world. And it is tested for extreme environments according to MIL-STD-810H. Water and dust resistant. The Ultra 4 is rated WR100 for scuba diving up to 40 meters and high-speed water sports. It is also dust resistant according to IP6X. Action button. With a short press, you can precisely control many customizable functions, such as starting a workout, marking a segment, switching to the next interval, or turning on the flashlight. Personalization. Choose from versatile band styles with endless possibilities for everything you do daily—whether you're working out or going out. And create unlimited watch face combinations. Advanced health and fitness tracking Run with all your heart. The Apple Watch Ultra was designed as the ultimate running watch. It has powerful features for smarter workouts and comes with precise dual-frequency GPS. And now the Apple Watch Ultra 4 goes even further—with health and fitness tracking on a whole new level. Everything you need to continue pushing your performance. And a longer battery life for workouts brings you even closer to all your goals. Run better. And further. The core of your health. Heart data is extremely important when tracking your overall health and fitness. The all-new health detection system has more powerful optical and electrical sensors and, together with the S11 chip, enables heart monitoring at a higher frequency. The redesigned sensors and the larger, more energy-efficient green LEDs deliver more comprehensive heart data for more meaningful insights. This value takes you further. The new readiness feature gives you a concrete value with which you can assess your daily performance. Every morning, the value is calculated based on your recent activities, vital signs, and sleep quality. And it automatically adjusts throughout your day. So whether you are training for a race or just have a lot to do—you can direct your energy toward what matters most to you. HRV? Check. Heart rate variability, or HRV, is an indicator of how your body responds to stress and recovery. Too much training or poor sleep can increase your stress and thus lower your HRV. With the most precise heart rate measurement in a wearable, the Apple Watch Ultra 4 measures HRV every five minutes. And heart rate values are measured in the background every five seconds. More frequently than any other Apple Watch. And with the redesigned Heart Rate app and new watch face complications, you can easily keep an eye on all measurements at any time. 60x more frequent background heart rate measurements than the Ultra 3 24x more frequent background HRV measurements than the Ultra 3 Stay updated while running. The Ultra 4 always goes one step further so that you can precisely track and analyze your running workouts. With real-time measurements and better insights into your training and performance, you will reach your goals faster than ever before. Stay updated while running. The Ultra 4 always goes one step further so that you can precisely track and analyze your running workouts. With real-time measurements and better insights into your training and performance, you will reach your goals faster than ever before. Check your heart rate zones. See instantly how intensely you are training—with heart rate zones that are automatically calculated and personalized based on your health data. You can also adjust them manually or set up alerts. Ready, Set, Action button. The Action button is customizable and lets you quickly activate various functions—so you can control a workout, switch to your next interval, mark a segment, and more. And all of it extremely precisely. Track your pace with Pacer. Set specific time and distance goals with Pacer while running or cycling outdoors and track whether you are maintaining your pace. Always stay one step ahead. With Course Break. Try to beat your personal bests on your favorite routes. You can see if you are faster or slower and how much further it is. Stay on track with automatic track detection. The Ultra 4 automatically detects when you arrive at a running track and combines Apple Maps data with precise GPS so that you get the most accurate data while running. You can also create your own workout with a warm-up phase, a recovery interval, and more. Always stay updated with the improved step counter. Whether you take a relaxed walk with your coffee in the morning or train on the treadmill in the evening—the Ultra 4 provides you with even more accurate data on your steps and distances traveled throughout the day. And you can now see your step count directly on the watch face. Track your training load. Helpful insights from training load show you how your training affects your body over time. This allows you to plan better when you are training for your next big challenge. Even better on the move with Strava. Track every run, every ride, and every hike and get motivated in real time. Live segments show your progress compared to your personal bests and live elevation