Apple has launched the Apple Watch Ultra 3, a rugged, high-performance smartwatch designed for athletes, adventurers, and anyone seeking a versatile device that excels in every setting. The Apple Watch Ultra 3 combines a powerful S10 chip, a brilliant Always-On Retina display, and advanced health, fitness, and safety features to elevate your experience. At Craft by Merlin, we’re thrilled to enhance this ultimate sports and adventure watch with our hand-painted bands and custom-engraved cases, making your Apple Watch Ultra 3 a unique blend of technology and artistry. Here’s a detailed look at the specs and features that make the Ultra 3 exceptional.
Rugged Design and Brilliant Display
The Apple Watch Ultra 3 features a 49mm case crafted from aerospace-grade titanium in Natural and Black finishes, offering durability and corrosion resistance for extreme environments. Weighing 61.3g, it’s built to withstand the toughest conditions while remaining comfortable for all-day wear. The Wide-angle Always-On Retina LTPO OLED display delivers up to 3,000 nits of brightness and 326 pixels per inch, ensuring clear visibility in direct sunlight or low-light settings. The sapphire crystal front cover provides superior scratch resistance, perfect for outdoor adventures.
Unmatched Fitness and Performance Tracking
The Apple Watch Ultra 3 is the ultimate companion for athletes, with advanced features tailored for running, cycling, swimming, and more. Powered by precision dual-frequency GPS (L1 and L5), it delivers pinpoint accuracy for tracking routes, pace, and distance, even in challenging environments like dense forests or urban canyons. The Workout app supports a wide range of activities, including:
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Running: Custom Workouts, advanced metrics (stride length, ground contact time), and the new Workout Buddy feature provide personalized coaching to optimize every stride.
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Cycling: Real-time monitoring of speed, power, and efficiency helps you track progress and improve performance.
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Swimming: Automatic stroke detection, set tracking, and distance calculations make it ideal for pool or open-water swims, with 100-meter water resistance and EN13319 certification for diving up to 40 meters.
The Ultra 3’s 50-meter water resistance and high-g accelerometer ensure accurate tracking across activities, while the Action button offers quick access to workout controls, waypoints, or dive functions. At Craft by Merlin, our hand-painted bands—crafted to withstand sweat, water, and wear—add vibrant, fitness-inspired designs to match your active lifestyle.
Extended Battery Life for Endurance
Engineered for stamina, the Apple Watch Ultra 3 offers exceptional battery life to keep up with your longest adventures. It delivers up to 42 hours of normal use, extending to 72 hours in Low Power Mode. For outdoor workouts, it provides up to 14 hours with full GPS and heart rate readings, or up to 35 hours in Low Power Mode with reduced GPS and heart rate updates. Fast charging reaches 80% in 45 minutes or provides 12 hours of use from a 15-minute charge, ensuring you’re always ready to go.
Our custom designs at Craft by Merlin complement this endurance, with durable, eco-friendly artwork that stays vibrant through extended wear, whether you’re on a multi-day hike or a marathon training session.
Adventure-Ready Features
The Apple Watch Ultra 3 is built for exploration, with specialized tools for hiking, diving, and off-grid adventures:
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Compass App: A powerful compass with hybrid view, waypoints, and Backtrack functionality maps your path, perfect for hiking or navigating remote trails.
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Dive Computer: Certified for recreational scuba diving up to 40 meters, it tracks depth, water temperature, and dive time, integrating with the Oceanic+ app for a full dive experience.
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Altimeter: An always-on altimeter tracks elevation changes in real time, ideal for mountaineering or skiing.
With an operating temperature range of -20°C to 55°C and MIL-STD 810H certification, the Ultra 3 thrives in extreme conditions, from deserts to snowy peaks. Our adventure-inspired designs, like rugged terrain patterns or oceanic motifs, make your Ultra 3 a bold statement on any expedition.
Advanced Health Monitoring
The Apple Watch Ultra 3 provides comprehensive health insights to keep you informed and empowered:
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ECG App: Take an electrocardiogram anytime to monitor heart health (not for users under 22).
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Blood Oxygen App: Measure oxygen saturation levels for insights into fitness and altitude acclimation.
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Vitals App: Track heart rate, respiratory rate, wrist temperature, and sleep patterns, with a daily sleep score analyzing REM, Core, and Deep stages.
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Health Notifications: Receive alerts for high/low heart rate, irregular rhythms, low cardio fitness, and possible hypertension (not for diagnosed conditions).
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Sleep Apnea Notifications: Detect potential sleep apnea events for proactive health management.
These features make the Ultra 3 a vital health tool, and our custom designs at Craft by Merlin add wellness-inspired artwork to inspire your journey to better health.
Safety Features for Peace of Mind
The Apple Watch Ultra 3 is equipped with life-saving safety features to protect you in any situation:
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Emergency SOS: Press and hold the side button to contact emergency services and share your location.
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Fall Detection: Automatically connects to emergency services if a hard fall is detected and you remain immobile.
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Crash Detection: Uses advanced sensors to detect severe car crashes, alerting emergency services and contacts.
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Check In: Notifies a friend when you arrive at a destination or complete a workout, ideal for solo adventures.
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Siren: An 86-decibel siren audible up to 180 meters away helps attract attention in emergencies.
Our durable, hand-painted bands ensure your Ultra 3 remains stylish while keeping you safe, with designs that withstand the rigors of outdoor use.
Versatile Connectivity and Smart Features
The Apple Watch Ultra 3 seamlessly transitions from sports watch to smartwatch, powered by the S10 chip with on-device Siri for instant responses. Intuitive gestures like double tap (to answer calls or scroll notifications) and wrist flick (to dismiss alerts) make one-handed operation effortless. With 5G support (cellular models), you can stream music, download apps, or stay connected without your iPhone, even on remote trails. Wi-Fi 4 (802.11n), Bluetooth 5.3, and Apple Pay ensure seamless connectivity, while 32GB of storage holds your favorite apps and music.
The watch runs watchOS 11, compatible with iPhone 11 or later on iOS 26, and supports a wide range of apps like Strava, Komoot, Oceanic+, and Nike Run Club for enhanced sports and adventure tracking. Our custom designs enhance this versatility, with patterns that transition from boardroom elegance to outdoor ruggedness.
Sustainability and Accessibility
The Apple Watch Ultra 3 is designed with sustainability in mind, featuring a 100% recycled titanium case, compact packaging, and zero waste to landfills from final assembly sites. Free of PVC and phthalates, it supports Apple’s 2030 carbon neutrality goal. Accessibility features cater to vision, mobility, hearing, and cognitive needs, ensuring inclusivity for all users.
At Craft by Merlin, we align with this eco-conscious ethos by using sustainable paints and processes, delivering hand-painted bands that are both environmentally friendly and visually stunning.
Availability and Customization
The Apple Watch Ultra 3 is available for pre-order, with shipping starting September 19, 2025, in Natural and Black titanium finishes, paired with rugged bands like Alpine Loop, Trail Loop, and Ocean Band. Visit Craft by Merlin to personalize your Apple Watch Ultra 3 with hand-painted bands or engraved cases, from adventure-inspired designs to elegant, custom artwork. Pre-order your customized watch today and make it uniquely yours!
Technical Specifications
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Case Size: 49mm (49mm x 44mm x 14.4mm, 61.3g)
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Materials: 100% recycled titanium in Natural or Black
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Display: Wide-angle Always-On Retina LTPO OLED, sapphire crystal, up to 3,000 nits, 326 ppi
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Processor: S10 chip with on-device Siri
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Sensors: Third-generation optical heart sensor, blood oxygen sensor, wrist temperature sensor, depth gauge, water temperature sensor, compass, always-on altimeter, high-g accelerometer, high dynamic range gyroscope, ambient light sensor
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Health Features: ECG app, Blood Oxygen app, high/low heart rate notifications, irregular rhythm notifications, low cardio fitness notifications, sleep score, retrospective ovulation estimates, sleep apnea notifications, Vitals app
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Fitness Features: Precision dual-frequency GPS, 20+ workout types, dive computer (up to 40m), 100m water resistance, Action button
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Safety Features: Emergency SOS, Fall Detection, Crash Detection, Check In, Backtrack, Siren (86dB)
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Connectivity: GPS/GNSS, Galileo, QZSS, 5G (cellular models), Wi-Fi 4 (802.11n), Bluetooth 5.3, Apple Pay, GymKit
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Battery Life: Up to 42 hours (72 hours in Low Power Mode), 14 hours outdoor workout with GPS, 35 hours in Low Power Mode with GPS/LTE, fast charging (80% in 45 minutes, 12 hours from 15 minutes)
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Operating System: watchOS 11
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Storage: 32GB
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Compatibility: iPhone 11 or later with iOS 26 or later
Conclusion
The Apple Watch Ultra 3 is a powerhouse of innovation, seamlessly blending cutting-edge technology with rugged durability to cater to athletes, adventurers, and everyday users alike. With its precision dual-frequency GPS, advanced health monitoring, robust safety features, and exceptional 42-hour battery life, it’s designed to excel in any environment—from mountain trails to open waters to urban settings. The 49mm titanium case, vibrant 3,000-nit Always-On Retina display, and versatile watchOS 11 ensure unmatched performance and style. At Craft by Merlin, we elevate this extraordinary device with our hand-painted bands and custom-engraved cases, offering personalized designs that reflect your unique personality, from bold adventure-inspired patterns to elegant, minimalist artwork.
