Apple Watch Ultra 3 Technical Specifications

Material and Finish

Titanium case, Grade 5

Natural, Black

Size and Weight

Height: 49mm
Width: 44mm
Depth: 12mm
422x514 pixels
1,245 sq mm display area
Weight (natural): 61.6 grams
Weight (black): 61.8 grams
Fits 130–210mm wrists

Hardware and Buttons

Microphone
Speaker
Customisable Action button
Siren/Speaker
Antennas (GPS, cellular, satellite)
Microphone
Side button
Microphone
Digital Crown
Depth gauge/water temperature sensor/altimeter

Controls

Customisable Action button
Digital Crown with haptic feedback
Side button
Double tap and wrist flick gestures
Siri with on‐device processing

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 apnoea notifications⁶
Hypertension notifications⁷

Display

Always‐On Retina display with wide‐angle OLEDs and LTPO3
1Hz refresh
Active area (422x514 pixels, 326 pixels per inch)
Flat sapphire crystal display
Up to 3,000 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

Multi‐day battery life, up to 42 hours of normal use⁸
Up to 72 hours in Low Power Mode⁸
Built-in rechargeable lithium‐ion battery
Fast-charge capable⁹
Up to 80% charge in about 45 minutes⁹
15 minutes for up to 12 hours of normal use¹⁰
5 minutes for up to 8 hours of sleep tracking¹⁰

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
Customisable Workout Views
Training Load / Workout Effort Tracking
Heart Rate Zones (customisable)
Post‐workout heart rate
VO₂ max
Race Route
Pacer
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 (US only)
Hundreds of curated hikes across all 63 US national parks
Siren

Cycling

Custom workouts
Customisable 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 (customisable)
Cadence (rpm), speed (mph), power (watts), power zones (with power meter connection)
Post‐workout heart rate

Swimming

Custom workouts (pool swim) with haptics to cue the next interval
Customisable 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 lengths

Diving

Recreational dive to 40m
Dive computer app (available on the App Store)¹¹
Automatic launch at 1m
Current and maximum depth duration
GPS entry and exit points
Depth gauge
Water temperature sensor

More Workouts

Skiing

Snowboarding

Outdoor Rowing

Paddling

Golf

Walk

Elliptical

Rowing Machine

Stair Stepper

HIIT

Yoga

Functional Strength Training

Dance

Cooldown

Core Training

Pilates

Tai Chi

Wheelchair

Kickboxing

Multisport

and more

Safety

Satellite connectivity (Emergency SOS, Find My)¹²
Emergency SOS¹³
International emergency calling¹⁴
Siren
Torch
Crash Detection¹³
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

L1 and L5 precision dual‐frequency GPS (GPS, GLONASS, Galileo, QZSS and BeiDou)
Supports RedCap for 5G¹⁷ and LTE¹⁸
Wi-Fi 4 (802.11n)
Support for 2.4GHz and 5GHz Wi‐Fi networks
Bluetooth 5.3
Second-generation Ultra Wideband chip¹⁹
NFC: Apple Pay,²⁰ GymKit
Support for Apple Watch For Your Kids²¹

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
Colour Filters
Text Size
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:

–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% non-condensing

Operating altitude:

–500 to 9,000 metres (–1,600 to 29,500 feet)

Apple Watch
and the Environment

Apple Watch Ultra 3 is designed to reduce environmental impact:²²

See the Apple Watch Ultra 3 Product Environmental Report (PDF)

Progress towards Apple 2030

Apple 2030 is our commitment to be carbon neutral for our entire carbon footprint. Our plan to decarbonise products is rigorous and focuses on transitioning to low‐carbon electricity, designing with recycled and low‐carbon materials, and prioritising lower‐carbon ways of shipping products, like sea freight.

See Apple’s commitment

Materials

Apple Watch Ultra 3 is made with 40% recycled content,²³ 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 energy²⁴
100% of expected customer energy use matched with low-carbon electricity
Meets California Energy Commission’s energy efficiency standards for battery charger systems²⁵

Packaging

100% fibre-based packaging²⁶

Waste

No established final assembly sites generate waste sent to landfill as part of Apple’s Zero Waste Programme²⁷

Smarter chemistry²⁸

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
Strap
Apple Watch Magnetic Fast Charger to USB-C Cable (1m)