Apple Watch Ultra 3 Technical Specifications

Material and Finish

Titanium case, Grade 5

Natural, Black

Size and Weight
  • Height: 49mm
  • Width: 44mm
  • Depth: 12mm
  • 422 by 514 pixels
  • 1245 sq mm display area
  • Weight (natural): 61.6 grams
  • Weight (black): 61.8 grams
  • Fits 130–210mm wrists
Hardware and Buttons
  • Microphone
  • Speaker
  • Customizable Action button
  • Siren/Speaker
  • Antennas (GPS, cellular)
  • Microphone
  • Side button
  • Microphone
  • 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
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 sensor1
  • Temperature sensor2
  • Depth gauge
  • Water temperature sensor
  • Compass
  • Always-on altimeter
  • High-g accelerometer
  • High dynamic range gyroscope
  • Ambient light sensor
Health and Wellness
  • Blood Oxygen app1
  • ECG app3
  • Cycle Tracking app with retrospective ovulation estimates4
  • Heart Rate app
  • High and low heart rate notifications
  • Irregular rhythm notifications5
  • Medications app
  • Mindfulness app with state of mind tracking
  • Noise app
  • Sleep app including sleep stages
  • Sleep score
  • Sleep apnea notifications6
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)
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 use7
  • Up to 72 hours in Low Power Mode7
  • Built-in rechargeable lithium-ion battery
  • Fast-charge capable8
  • Up to 80% charge in about 45 minutes8
  • 15 minutes for up to 12 hours of normal use9
  • 5 minutes for up to 8 hours of sleep tracking9

Learn more

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.
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
  • Precision Start using Action button
  • Stride Length, Ground Contact Time, Cadence, Power, and Vertical Oscillation
  • Multisport workout

Hiking
  • Compass with bearing, incline, elevation, and coordinates
  • Custom waypoints
  • Automatically generated waypoints to cellular connectivity
  • Backtrack GPS data
  • 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
  • Custom workouts
  • Customizable Workout Views
  • Training Load / Workout Effort Tracking
  • Average speed, elevation gained, and distance
  • Bluetooth-compatible with power meters
  • Functional Threshold Power (with power meter connection)
  • Live Activity on iPhone
  • Heart Rate Zones (customizable)
  • Cadence (rpm), speed (mph), power (watts), power zones (with power meter connection)
  • Postworkout heart rate

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)10
  • Automatic launch at 1m
  • Current and maximum depth duration
  • GPS entry and exit points
  • Depth gauge
  • Water temperature sensor

More Workouts
Safety
  • Emergency SOS11
  • International emergency calling12
  • Siren
  • Flashlight
  • Crash Detection11
  • Fall Detection
  • Last Emergency Call Availability Waypoint
  • Noise monitoring
  • Backtrack
Durability
  • Water resistance 100m (swim, snorkel, scuba, high-speed water sports) under ISO standard 22810:201013
  • Dust resistance IP6X under IEC 6052914
  • 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
  • L1 and L5 precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, and BeiDou)
  • Cellular: LTE15 and UMTS
  • Wi-Fi 4 (802.11n)
  • Support for 2.4GHz and 5GHz Wi-Fi networks
  • Bluetooth 5.3
  • Second-generation Ultra Wideband chip16
  • NFC: Apple Pay,17 GymKit
Accessibility

Built-in accessibility features supporting vision, mobility, hearing, and cognitive disabilities.

Learn more

Features include:
  • VoiceOver
  • Zoom
  • On/Off Labels
  • Reduce Transparency
  • Increase Contrast
  • Color Filters
  • Text Size
  • Bold Text
  • Reduce Motion
  • Hourly Chimes
  • AssistiveTouch
  • Button Click Speed
  • Touch Accommodations
  • Auto-Answer Calls
  • Audio Volume Balance
  • Live Speech
  • Accessibility Shortcut
  • Mono Audio
  • Taptic Time
  • Live Listen
Environmental Requirements
On-wrist operating temperature:

–20° to 55° C (–4° to 130° F)

Operating temperature:

0° to 35° C (32° to 95° F)

Non-operating storage temperature:

–20° to 45° C (–4° to 113° F)

Dive operating temperature:

0° to 40° C (32° to 104° F)

Relative humidity:

5% to 90% noncondensing

Operating altitude:

–500m to 9000m (–1600 feet to 29,500 feet)

Apple Watch
and the Environment

Apple Watch Ultra 3 is designed to reduce environmental impact:18

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.

See Apple’s commitment

Materials

Apple Watch Ultra 3 is made with 40% recycled content,19 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
  • 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 electricity20
  • 100% of expected customer energy use matched with low-carbon electricity
  • Meets California Energy Commission’s energy efficiency standards for battery charger systems21

Packaging

100% fiber-based packaging22

Waste

No established final assembly sites generate waste sent to landfill as part of Apple’s Zero Waste Program23

Smarter chemistry24

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

In the Box
  • Apple Watch Ultra 3
  • Band
  • Apple Watch Magnetic Fast Charger to USB-C Cable (1m)
Apple Watch Ultra 3, natural titanium color case, edge-to-edge display, neon green Ocean Band, Apple Watch Magnetic Fast Charger to USB-C Cable