Case
Black Titanium
Watch strap colour
Black Ocean Band
Capacity
64GB
Chip
S9 SiP with 64-bit dual-core processor Processor S9 SiP with 64-bit dual-core processor
DisplayÂ
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
 Buttons and ConnectorsÂ
Double tap Gesture
Faster on-device Siri with health data access¹
Digital Crown with haptic feedback
Side button
Customisable Action Button
GPS Antenna
Dual Speakers
Siren
Three-Mic Array
Depth Gauge
Power and BatteryÂ
Built-in rechargeable lithium-ion battery
Up to 36 hours
Up to 72 hours in Low Power Mode
USB-C magnetic fast charging cable
Note:
All-day battery life is based on the following use: 180 time checks, 180 notifications, 90 minutes of app use, and a 60-minute workout with music playback from Apple Watch via Bluetooth, over the course of 36 hours; Apple Watch Ultra 2 (GPS + Cellular) usage includes a total of 8 hours of LTE connection and 28 hours of connection to iPhone via Bluetooth over the course of 36 hours. Battery life in Low Power Mode is based on the following use: 360 time checks, 360 notifications, 180 minutes of app use, and two 60-minute workouts with music playback from Apple Watch via Bluetooth, over the course of 72 hours; Apple Watch Ultra 2 (GPS + Cellular) usage includes on-demand LTE connection and 60 hours of connection to iPhone via Bluetooth over the course of 72 hours. Testing conducted by Apple in August 2023 using preproduction Apple Watch Ultra 2 (GPS + Cellular) paired with an iPhone; all devices tested with prerelease software. Battery life varies by use, configuration, cellular network, signal strength, and many other factors; actual results will vary.
 Size and WeightÂ
Height: 49mm
Width: 44mm
Depth: 14.4mm
410 by 502 pixels
1185 sq mm display area
Weight (natural): 61.4 grams
Weight (black): 61.8 grams
Fits 130–210mm wrists
Sensors
Compass
Always-on altimeter
Blood oxygen sensor
Electrical heart sensor
Third-generation optical heart sensor
High-g accelerometer
High dynamic range gyroscope
Ambient light sensor
Water temperature sensor