Apple
Watch Ultra 4
Multi-day battery life
Ultra 4 is the smartwatch with ultramarathon battery stamina², perfect for runners to go the distance—with up to 45 hours of Max Extended Workout tracking⁵. And you can fast-charge in just 15 minutes for up to 18 hours of use⁶.
Stay closer to your heart health
The most accurate heart rate sensing in a wearable¹, Ultra 4 now measures HRV as often as every five minutes for insights on stress and recovery, and takes background heart rate readings every five seconds.
Fully-loaded health tracking
Better understand your body with invaluable health insights. View your overnight health metrics with the Vitals app⁷ and get a daily sleep score, track your menstrual cycle⁸, and take readings of your blood oxygen⁹.
Start the day ready
Know when to rest or put yourself to the test. The readiness experience can help you determine your capacity to take on the day by analyzing your recent activity, vitals, and sleep.
Your ultimate 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.
Help is always close at hand
A smartwatch that puts your safety first. Ultra 4 can detect a hard fall or severe car crash¹⁰. If you don’t have cell service or Wi-Fi, built-in satellite communications let you text emergency services to get help¹¹.
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Overview
Apple Watch Ultra 4 is the ultimate running and sports watch for every terrain you want to tackle. Multi-day battery life goes the distance² while delivering game-changing health and fitness tracking, enabled by the most accurate heart rate sensing in a wearable¹. Get high-frequency HRV readings for insights on stress, recovery, and your readiness to take on the day. And now every day is more effortless with Siri AI³ and Audio Intelligence⁴.
Available at Cellular Sales:
49mm
Black titanium case:
with Burgundy Trail Loop in S/M and M/L
with Burgundy Alpine Loop in S, M, and L
with Black Titanium Milanese Loop in S, M, and L
with Translucent Black Ocean Band
Natural Titanium Case:
with Desert Alpine Loop in S, M, and L
with Translucent Gray Ocean Band
with Natural Titanium Milanese Loop in S, M, and L
with Sand Trail Loop in S/M and M/L
What's in the box
- Apple Watch Ultra 4
- Band
- Apple Watch Magnetic Charger to USB-C Cable
1. Based on Apple-conducted study of heart rate accuracy, August 2026. Visit apple.com/HRAccuracy .
2. Battery life varies by use and configuration. See apple.com/watch/battery for more information.
3. Apple Intelligence is available with Siri and device language set to Chinese (Simplified), Chinese (Traditional), Danish, Dutch, English, French, German, Italian, Japanese, Korean, Norwegian, Portuguese, Spanish, Swedish, Turkish, or Vietnamese. Some features may not be available in all regions or languages. Some devices may not be available in all regions. Siri AI is available in beta in watchOS 27 and requires an Apple Intelligence–enabled device set to a supported language. Available in English to start. Siri AI will not be initially available in the EU on watchOS. Certain Apple Intelligence features that rely on server-side models are subject to daily usage limits, including but not limited to Siri AI. Daily limits may vary by feature, request complexity, system demand, system policies, and other factors. Expanded access to such features will be available for a fee in the future. Use of these features is subject to the Apple Intelligence Terms and Conditions. Learn more at apple.com/apple-intelligence.
4. Audio Intelligence includes Live Rewind, Siri Recap, Sound Recognition, and faster Shazam and requires Apple Watch Series 12 or Apple Watch Ultra 4. Live Rewind and Siri Recap will be available in beta in late 2026 and require an Apple Intelligence–enabled iPhone 16 or later (excluding iPhone 16e). Will be available in English to start and will not initially be available in the EU. Certain Audio Intelligence features that rely on server-side models are subject to daily usage limits, including but not limited to Live Rewind and Siri Recap. For more information, visit support.apple.com/148354.
5. Workout tested without iPhone and with heart rate sensor on during outdoor run workout sessions. Extended Workout turns on Low Power Mode during the workout; running form metrics will be unavailable. Max Extended Workout turns on Low Power Mode during the workout, and turns off alerts and splits; certain metrics will be unavailable. Testing conducted by Apple in July and August 2026 using preproduction Apple Watch Ultra 4; all devices tested with prerelease software. Battery life varies by use, configuration, cellular network, signal strength, and many other factors; actual results will vary.
6. Testing conducted by Apple in July and August 2026 using preproduction Apple Watch Ultra 4 paired with an iPhone; all devices tested with prerelease software, preproduction Apple Watch Magnetic Fast Charger to USB-C Cable (Model A3277), and Apple 20W USB-C Power Adapter (Model A2305). Charge time varies with adapter, region, settings, initial battery levels, usage, and environmental factors; actual results will vary.
7. The Vitals app is for wellness purposes only and not for medical use.
8. The Cycle Tracking app should not be used for birth control or to diagnose a health condition. Cycle deviation notifications inclusive of perimenopause are for people 40 years old or older.
9. The Blood Oxygen app is for wellness purposes only and not for medical use. Measurements are calculated and viewed on iPhone in the Health app. The Blood Oxygen app is available on Apple Watch Series 6 and later (excluding Apple Watch SE models) and all Apple Watch Ultra models.
10. Emergency SOS requires a satellite connection, cellular connection, or Wi-Fi calling with an internet connection from your Apple Watch or nearby iPhone. You can use cellular models of Apple Watch to make an emergency call in many locations, provided that cellular service is available. Some cellular networks may not accept an emergency call from your Apple Watch if your Apple Watch isn't activated, if it isn't compatible with or configured to operate on a particular cellular network, if it isn't set up for cellular service, or if the cellular network does not support emergency calling over IMS. See support.apple.com/108374 and apple.com/watch/cellular for more information.
11. Emergency SOS, Find My, and Messages via satellite are included for free for two years with the activation of Apple Watch Ultra 3 or later. Connection and response times vary based on location, site conditions, and other factors. Find My and Messages via satellite require a carrier plan. To send and receive SMS from cellular models of Apple Watch over satellite, your paired iPhone must be powered on and connected to Wi-Fi or an active cellular network, but your iPhone doesn't need to be nearby. SMS message rates may apply. Satellite connectivity provided by Globalstar and its affiliates. See support.apple.com/123924 for more information.
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