The ultimate sports and adventure watch

Apple Fitness+, the ultimate fitness experience powered by Apple Watch. Get 3 months free when you buy Apple Watch. Offer available to new subscribers who purchase an eligible device. No commitment. Plan automatically renews after trial until cancelled. Only one offer per Apple ID. This offer is not available if you or your family have previously subscribed to Apple Fitness+. Restrictions and other terms apply.

Apple Watch Ultra 4 is the ultimate running and sports watch with multi-day battery life,² game-changing health and fitness tracking and high-frequency HRV readings for insights into stress, recovery and your readiness to take on the day.

MULTI DAY BATTERY LIFE
Ultra 4 is a smartwatch with ultramarathon battery stamina,² perfect for runners to go the distance — with up to 45 hours of Max Extended Workout tracking.⁵ And you can fast charge in just 15 minutes for up to 18 hours of use.⁶

STAY CLOSER TO YOUR HEART HEALTH
The most accurate heart rate sensing in a wearable,¹ Ultra 4 now measures HRV as often as every five minutes for insights on stress and recovery, and background heart rate readings every five seconds.

ULTIMATE RUNNING AND 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.

CHECK YOUR READINESS FOR THE DAY
Know when to rest or put yourself to the test. The readiness experience gives you one clear score and can help you determine your capacity to take on the day by analysing your recent activity, vitals and sleep.

SIRI AI AND AUDIO INTELLIGENCE
Using just your voice, engage in natural, back and forth conversations, brainstorm ideas and more with Siri AI.³ Audio Intelligence helps catch what you missed and summarise conversations with Live Rewind and Siri Recap.⁴ Siri AI is rolling out in English. Some Audio Intelligence features coming in beta late 2026. Usage limits may apply.

Additional information:

• Charger included: N
• Depth: 3.8 CM
• Height: 11.8 CM
• Maximum Charger power: 40
• Minimum Charger power: 20
• Charger required: Y
• USB PD: Y
• Width: 21.4 CM

Apple Watch Ultra 4 requires iPhone 11 or later with iOS 27 or later. 1 Apple heart rate accuracy study, August 2026. 2 Battery life varies by use and configuration. 3 Apple Intelligence availability varies by region and language. 4 Audio Intelligence, including Live Rewind, Siri Recap, Sound Recognition and faster Shazam, requires Series 12 or Ultra 4. 5 Outdoor run tested without iPhone, with heart rate sensor on.