Model:
MX4U3VC/A
Controls:
Customizable Action button
Digital Crown with haptic feedback
Side button
Double tap gesture
Siri with on‑device processing
Chip:
S9 SiP with 64-bit dual-core processor
4-core Neural Engine
64GB capacity
Sensors:
Electrical heart sensor
Third-generation optical heart sensor
Temperature sensor1
Depth gauge ±1m accuracy
Water temperature sensor
Compass
Always-on altimeter
High-g accelerometer
High dynamic range gyroscope
Ambient light sensor
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
Sleep app including sleep stages
Display:
Always-On Retina LTPO2 OLED display
Flat sapphire crystal display
Up to 3000 nits maximum brightness
1 nit minimum brightness
326 pixels per inch
Night Mode using Modular Ultra or Wayfinder watch face
Audio:
Three-microphone array with beamforming and wind noise mitigation
Dual speakers
Media playback
Power and Battery Life:
Multiday battery life, up to 36 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 1 hour
Operating System:
watchOS 11
Safety:
Emergency SOS
International emergency calling
Siren
Crash Detection
Fall Detection
Last Emergency Call Availability Waypoint
Noise Monitoring
Backtrack
Connectivity:
LTE and UMTS
L1+L5 Precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS and BeiDou)
Wi-Fi 4 (802.11n)
Bluetooth 5.3
Second-generation Ultra Wideband chip
Apple Pay
GymKit
Supports Apple Watch For Your Kids
