Apple Watch Ultra 4 GPS + Cellular 49mm Smartwatch

Features

• MULTI-DAY BATTERY LIFEUltra 4 is a smartwatch with ultramarathon battery stamina,* perfect for runners to go the distancewith up to 45 hours of Max Extended Workout tracking.* And you can fast-charge in just 15 minutes for up to 18 hours of use.*
• STAY CLOSER TO YOUR HEART HEALTHThe most accurate heart rate sensing in a wearable,* 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.
• A FULL-FEATURED HEALTH TRACKERBetter understand your body with advanced health insights. View your overnight health metrics with the Vitals app and get a daily sleep score,* track your menstrual cycle,* and take readings of your blood oxygen.*
• CHECK YOUR READINESS FOR THE DAYKnow 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 analyzing your recent activity, vitals, and sleep.
• ULTIMATE RUNNING AND WORKOUT COMPANIONA 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.
• KEEP HELP CLOSE AT HANDA smartwatch that puts your safety first. Ultra 4 can detect a hard fall or severe car crash.* If you dont have cell service or Wi-Fi, built-in satellite communications let you text emergency services to get help.*
• SIRI AI AND AUDIO INTELLIGENCEUsing just your voice, engage in natural, back-and-forth conversations, brainstorm ideas, and more with Siri AI.* Audio Intelligence helps catch what you missed and summarize conversations with Live Rewind and Siri Recap.* Siri AI is rolling out in English. Some Audio Intelligence features coming in beta late 2026. Usage limits may apply.
• RUGGED AND READY TO GOUltra 4 is built for extreme environments with a tough titanium case and a strong sapphire crystal display. Water resistant up to 100m, this smartwatch is great for swimmers, divers, and fans of high-speed water sports.*
• THE FREEDOM OF CELLULARWith just your smartwatch, you can take and make calls, stream music and podcasts, and listen with your AirPodseven without your iPhone.*
• LEGAL DISCLAIMERSThis is a summary of the main product features. See below to learn more.

Operating System: watchos

Memory Storage Capacity: 64 GB

Special Feature: Activity Tracker, Cycle Tracking, GPS, Heart Rate Monitor

Connectivity Technology: 5G and LTE, Cellular

Wireless Communication Standard: Bluetooth

Battery Cell Composition: Lithium Ion

GPS: Built-in GPS

Shape: Rectangular

Screen Size: 49 millimeters

Brand: Apple

Package Dimensions: ‎8.43 x 4.69 x 1.46 inches

Item Weight: ‎15.1 ounces

Manufacturer: ‎Apple

Item model number: ‎MJAY4LS/A

Date First Available: ‎September 8, 2026