Apple Watch Ultra · 2025
Apple Watch Ultra 3 Technical specifications
Apple Watch Ultra 3 was introduced by Apple in 2025. It has the S10 chip with 64-bit dual-core processor chip. Storage options: 64GB. Colors: Titanium case, Grade 5, Natural, Black. Weight: 61.6 g.
- ChipS10 chip with 64-bit …
- Batteryup to 42 h
- Storage64GB
- Weight61.6 g
- Titanium case
- Grade 5
- Natural
- Black
Updated:
Apple Watch Ultra 3: key specifications
| Released | 2025 |
|---|---|
| Display | Flat sapphire crystal · 422 × 514 |
| Chip | S10 chip with 64-bit dual-core processor · 4-core Neural Engine |
| Storage | 64GB |
| Battery | up to 42 h |
| Weight | 61.6 g |
| Connectivity | 5G · Wi-Fi 4 · Bluetooth 5.3 · UWB |
| Operating System | watchOS |
| Model Numbers | A3281, A2515, A2305 |
Models, storage and colors
Model Numbers
- A3281
- A2515
- A2305
Storage
- 64GB
Colors
- Titanium case
- Grade 5
- Natural
- Black
Complete specifications
Size and Weight
- Height49mm
- Width44mm
- Depth12mm
- 422 by 514 pixels
- 1245 sq mm display area
- Weight (natural)61.6 grams
- Weight (black)61.8 grams
- Fits 130–210mm wrists
Display
- Always‑On Retina display with wide‑angle OLEDs and LTPO3
- 1Hz refresh
- Active area (422 by 514 pixels, 326 pixels per inch)
- Flat sapphire crystal display
- Up to 3000 nits peak brightness
- 1 nit minimum brightness
- Night Mode for Apple Watch Ultra faces (Modular Ultra, Wayfinder, Orienteering)
Chip
- S10 chip with 64-bit dual-core processor
- 4-core Neural Engine
- 64GB capacity
Sensors
- Electrical heart sensor
- Third-generation optical heart sensor
- Blood oxygen sensor
- Temperature sensor
- Depth gauge
- Water temperature sensor
- Compass
- Always-on altimeter
- High-g accelerometer
- High dynamic range gyroscope
- Ambient light sensor
Operating System
- watchOS
- watchOS is the world’s most advanced wearable operating system, with apps and features designed to keep you active, healthy, safe, and connected.
Accessibility
- Built-in accessibility features supporting vision, mobility, hearing, and cognitive disabilities.
- Features include
- VoiceOver
- Zoom
- On/Off Labels
- Reduce Transparency
- Increase Contrast
- Color Filters
- Text Size
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- Bold Text
- Reduce Motion
- Hourly Chimes
- AssistiveTouch
- Button Click Speed
- Touch Accommodations
- Auto-Answer Calls
- Type to Siri
- RTT Support
- Audio Volume Balance
- Audio Transcription
- Live Speech
- Accessibility Shortcut
- Mono Audio
- Taptic Time
- Personal Voice
- Live Listen
Environmental Requirements
- On-wrist operating temperature–4° to 130° F (–20° to 55° C)
- Operating temperature32° to 95° F (0° to 35° C)
- Non-operating storage temperature–4° to 113° F (–20° to 45° C)
- Dive operating temperature32° to 104° F (0° to 40° C)
- Relative humidity5% to 90% noncondensing
- Operating altitude–1600 feet to 29,500 feet (–500m to 9000m)
In the Box
- Apple Watch Ultra 3
- Band
- Apple Watch Magnetic Fast Charger to USB-C Cable (1m)
Material and Finish
- Titanium case, Grade 5
- Natural
- Black
Hardware and Buttons
- Microphone
- Speaker
- Customizable Action button
- Siren/Speaker
- Antennas (GPS, cellular/satellite)
- Side button
- Digital Crown
- Depth gauge/Water temperature sensor/Altimeter
Controls
- Customizable Action button
- Digital Crown with haptic feedback
- Side button
- Double tap and wrist flick gestures
- Siri with on‑device processing
Health and Wellness
- Blood Oxygen app
- ECG app
- Cycle Tracking app with retrospective ovulation estimates
- Heart Rate app
- High and low heart rate notifications
- Irregular rhythm notifications
- Medications app
- Mindfulness app with state of mind tracking
- Noise app
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- Sleep app including sleep stages
- Sleep score
- Sleep apnea notifications
- Hypertension notifications
Audio
- Three-microphone array with beamforming and wind noise mitigation
- Dual speakers
- Media playback
- Siren
Power and Battery Life
- Multiday battery life, up to 42 hours of normal use
- Up to 72 hours in Low Power Mode
- Built-in rechargeable lithium-ion battery
- Fast-charge capable
- Up to 80% charge in about 45 minutes
- 15 minutes for up to 12 hours of normal use 10
- 5 minutes for up to 8 hours of sleep tracking
Workouts and Activity
- Running
- Custom workouts
- Customizable Workout Views
- Training Load / Workout Effort Tracking
- Heart Rate Zones (customizable)
- Postworkout heart rate
- VO2 max
- Race Route
- Pacer
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- Precision Start using Action button
- Stride Length, Ground Contact Time, Cadence, Power, and Vertical Oscillation
- Automatic track detection
- Multisport workout
- Hiking
- Compass with bearing, incline, elevation, and coordinates
- Custom waypoints
- Automatically generated waypoints to cellular connectivity
- Backtrack GPS data
- Offline maps with custom route creation
- Elevation alerts
- Topographic maps for thousands of national and regional parks (U.S. only)
- Hundreds of curated hikes across all 63 U.S. national parks
- Siren
- Cycling
- Average speed, elevation gained, and distance
- Bluetooth-compatible with power meters
- Functional Threshold Power (with power meter connection)
- Live Activity on iPhone
- Cadence (rpm), speed (mph), power (watts), power zones (with power meter connection)
- Swimming
- Custom workouts (pool swim) with haptics to cue the next interval
- Customizable Workout Views (pool swim, open water swim)
- Splits and auto sets
- SWOLF score
- Automatic stroke and count detection (including kickboard)
- Water temperature
- Average pace, total distance, heart rate, and laps
- Diving
- Recreational dive to 40m
- Dive computer app (available on the App Store)
- Automatic launch at 1m
- Current and maximum depth duration
- GPS entry and exit points
- Depth gauge
- Water temperature sensor
- Skiing
- Snowboarding
- Outdoor Rowing
- Paddling
- Golf
- Walk
- Elliptical
- Rower
- Stair Stepper
- HIIT
- Yoga
- Functional Strength Training
- Dance
- Cooldown
- Core Training
- Pilates
- Tai Chi
- Wheelchair
- Kickboxing
- Multisport
- and more
Safety
- Satellite connectivity (Emergency SOS, Messages, Find My)
- Emergency SOS13
- International emergency calling
- Siren
- Flashlight
- Crash Detection
- Fall Detection
- Last Emergency Call Availability Waypoint
- Noise monitoring
- Backtrack
Durability
- Water resistance 100m (swim, snorkel, scuba, high-speed water sports) under ISO standard 22810:201015
- Dust resistance IP6X under IEC 6052916
- EN13319 recreational scuba diving to 40m (±1m accuracy)
- Tested to MIL-STD 810H against subsections for altitude, high temperature, low temperature, temperature shock, immersion, freeze with thaw, ice and freezing rain, and shock and vibration
Connectivity
- All Models
- Support for 2.4GHz and 5GHz Wi-Fi networks
- Wi-Fi 4 (802.11n)
- Bluetooth 5.3
- L1 and L5 precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, and BeiDou)
- Second-generation Ultra Wideband chip
- Apple Pay18
- GymKit
- Model A3281
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- Supports RedCap for 5G19 and LTE20
- FDD‑5G NR (Bands n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n66, n71)
- TDD‑5G NR (Bands n38, n40, n41, n53)
- FDD‑LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66, 71)
- TDD‑LTE (Bands 38, 39, 40, 41, 53)
- Support for Apple Watch For Your Kids
- International roaming
Apple Watch and the Environment
- Apple Watch Ultra 3 is designed to reduce environmental impact:23
- See the Apple Watch Ultra 3 Product Environmental Report (PDF)
- Progress toward Apple 2030
- Apple 2030 is our commitment to be carbon neutral for our entire carbon footprint. Our plan to decarbonize products is rigorous and focuses on transitioning to low-carbon electricity, designing with recycled and low-carbon materials, and prioritizing lower-carbon ways of shipping products, like ocean freight.
- Materials
- Apple Watch Ultra 3 is made with 40% recycled content, including
- 100% recycled titanium in the case
- 100% recycled cobalt and 95% recycled lithium in the battery
- 100% recycled rare earth elements in all magnets
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- 100% recycled gold plating and tin solder in all Apple-designed printed circuit boards
- 100% recycled tungsten in the Taptic Engine
- 80% recycled steel in the speaker and Taptic Engine
- Energy
- 100% of manufacturing electricity for Apple Watch Ultra 3 is sourced from renewable electricity
- 100% of expected customer energy use matched with low-carbon electricity
- Meets California Energy Commission’s energy efficiency standards for battery charger systems
- Packaging
- 100% fiber-based packaging
- Waste
- No established final assembly sites generate waste sent to landfill as part of Apple’s Zero Waste Program
- Smarter chemistry
- All of the materials used in Apple products, accessories, and packaging are covered by the requirements of our Regulated Substances Specification, which was one of the first in industry to restrict the use of key substances of concern. See the latest Environmental Progress Report to understand Apple’s recent efforts in phasing out these chemistries.
Compatibility
- iPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 26 or later
Apple Watch Ultra 3 technical specifications
This page contains complete technical specifications for Apple Watch Ultra 3, including display, chip, storage, colors, model numbers, dimensions, weight, operating system, connectivity, battery information and other hardware details.
Use this information to compare Apple devices, identify the exact model, check compatibility and verify key hardware features before service, repair, resale or purchase.
Apple Watch Ultra 3 — FAQ
What year was Apple Watch Ultra 3 released?
Apple Watch Ultra 3 was released in 2025.
What is the display size of Apple Watch Ultra 3?
Apple Watch Ultra 3 has Flat sapphire crystal · 422 × 514.
What chip does Apple Watch Ultra 3 use?
Apple Watch Ultra 3 uses S10 chip with 64-bit dual-core processor, 4-core Neural Engine.
What storage capacities are available for Apple Watch Ultra 3?
Available storage capacities include 64GB.
What are the model numbers for Apple Watch Ultra 3?
Known model numbers include A3281, A2515, A2305.
What colors does Apple Watch Ultra 3 come in?
Apple Watch Ultra 3 is available in Titanium case, Grade 5, Natural, Black.
What are the dimensions and weight of Apple Watch Ultra 3?
Apple Watch Ultra 3 weighs 61.6 g.
How long does the Apple Watch Ultra 3 battery last?
Battery life of Apple Watch Ultra 3: up to 42 h.
Does Apple Watch Ultra 3 support 5G?
Yes, Apple Watch Ultra 3 supports 5G. Connectivity: 5G, Wi-Fi 4, Bluetooth 5.3, UWB.
