Apple Watch Ultra 3

61.6 - 61.8 gm

IP6X

49 mm, Titanium

Fluoroelastomer, Nylon Weave, Titanium, Woven Textile

44 x 12 x 49 mm

IP6X, 10 ATM, MIL-STD-810H certified, EN13319 dive certified

Black, Natural

1.92-inch

Retina LTPO3 OLED

514 x 422 px, 326 PPI

Up to 3000 nits

Sapphire Crystal

Yes

5.3

Wi-Fi 4, dual-band

Yes

Yes

A-GPS (dual-band L1+L5), BDS, Galileo, GLONASS, QZSS

iOS 26 or later

Apple Watch app, Health app, Fitness app

watchOS 26

Apple S10 (4nm)

64GB storage

Yes (dual speaker)

Yes (triple mics)

Optical Heart Rate, SpO2, ECG, Accelerometer, Gyroscope, Compass, Altimeter, Ambient Light, Depth Gauge, Water Temperature

24/7 Heart Rate, SpO2 (Blood Oxygen), Blood Pressure, Sleep Tracking, Women's Health

100+ workout modes

Up to 3 days

599 mAh (Li-Ion)

Up to 42 hours (typical), 72 hours (battery saver)

Wireless charging, 80% in 45 min

Crash Detection, Fall Detection, Depth gauge, Emergency SOS