| Material and Finish | Black | 
| Size and Weight | Height: 49mm Width: 44mm
 Depth: 14.4mm
 410 by 502 pixels
 1,185mm² display area
 Weight (natural): 61.4g
 Weight (black): 61.8g
 Fits 130–210mm wrists
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| Hardware and Buttons | 1 Microphone2 Speaker
 3 Customizable Action button
 4 Siren / Speaker
 5 GPS antennas
 6 Microphone
 7 Side button
 8 Microphone
 9 Digital Crown
 10 Depth gauge / water temperature sensor
 
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| Controls | 
Customizable Action buttonDigital Crown with haptic feedbackSide buttonDouble tap gesture | 
| Chip | 
S9 SiP with 64-bit dual-core processor4-core Neural Engine64GB capacity | 
| Sensors | 
Electrical heart sensorThird-generation optical heart sensorTemperature sensor
Blood oxygen sensorDepth gauge ±1m accuracyWater temperature sensorCompassAlways-on altimeterHigh-g accelerometerHigh dynamic range gyroscopeAmbient light sensor | 
| Health and Wellness | 
Blood Oxygen appECG app
Cycle Tracking app with retrospective ovulation estimates
Heart Rate appHigh and low heart rate notificationsIrregular rhythm notifications
Medications appMindfulness app with state of mind trackingNoise appSleep app including sleep stages | 
| Display | 
Always-On Retina LTPO2 OLED displayFlat sapphire crystal displayUp to 3,000 nits maximum brightness1 nit minimum brightness326 pixels per inchNight Mode using Modular Ultra or Wayfinder watch face | 
| Audio | 
Three-microphone array with beamforming and wind noise mitigationDual speakersMedia playback | 
| Power and Battery Life | 
Multi-day battery life, up to 36 hours of normal use
Up to 72 hours in Low Power Mode
Built-in rechargeable lithium-ion batteryFast-charge capable
Up to 80% charge in about 1 hour | 
| Operating System | watchOS 11 watchOS is the world’s most advanced wearable operating system, with apps and features designed to keep you active, healthy, safe, and connected.
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| Workouts and Activity | Running Hiking
 Cycling
 Swimming
 Diving
 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
 
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| Safety | 
Emergency SOS
SirenCrash Detection
Fall DetectionLast Emergency Call Availability WaypointNoise MonitoringBacktrack | 
| Durability | 
Water resistance 100m under ISO standard 22810:2010
Dust resistance IP6X under IEC 60529
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 | 
LTE and UMTS
L1+L5 Precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, and BeiDou)Wi-Fi 4 (802.11n)Bluetooth 5.3Second-generation Ultra Wideband chip
GymKit | 
| Accessibility | 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
 Audio Transcription
 Live Speech
 Accessibility Shortcut
 Mono Audio
 Taptic Time
 Personal Voice
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| Environmental Requirements | On-wrist operating temperature: –20° to 55° C Operating temperature: 0° to 35° C
 Nonoperating storage temperature: –20° to 45° C
 Dive operating temperature: 0° to 40° C
 Relative humidity: 5% to 90% noncondensing
 Operating altitude: –500m to 9,000m
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