Display:

LTPO OLED Always-On Retina display
49mm: 410 x 502 pixels
1185 sq mm display area
Up to 3000 nits brightness

Processor:

S9 SiP with 64-bit dual-core processor
4-core Neural Engine
W3 Apple wireless chip
U1 chip (Ultra Wideband)

Storage Options:

64GB

Battery Life:

Up to 36 hours
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)

Connectivity:

Wi-Fi (802.11b/g/n 2.4GHz and 5GHz)
Bluetooth 5.3
GPS/GNSS, GLONASS, Galileo, QZSS, BeiDou
LTE and UMTS (GPS + Cellular models)

Dimensions and Weight:

49mm: 49 x 44 x 14.4 mm, 61.4g (Natural Titanium), 61.8g (Black Titanium)

Operating System:

watchOS 11

Additional Features:

Electrical heart sensor
Third-generation optical heart sensor
Temperature sensor
Depth gauge (±1m accuracy)
Water temperature sensor
Compass
Always-on altimeter
High-g accelerometer (up to 256 g-forces)
High dynamic range gyroscope
Ambient light sensor
Dual speakers (40% louder than Series 8)
Three-microphone array with beamforming and wind noise mitigation
Apple Pay
Water resistant up to 100 metres
Certified IP6X dust resistant
Tested to MIL-STD 810H

Colours:

Titanium: Natural, Black