Apple Watch Ultra 4

Apple

Watch Ultra 4

S11 chip with 64-bit dual-core processor
Audio Intelligence (Live Rewind, Siri Recap, Shazam, Sound Recognition)2
4-core Neural Engine

64GB capacity

Three-microphone array with beamforming and wind noise mitigation
Dual speakers
Media playback
Siren

Health Sensing System: second‑generation electrical heart sensor, always‑on optical heart sensor, blood oxygen sensor,3 and temperature sensor
Depth gauge
Water temperature sensor
Compass
Always‑on altimeter
High‑g accelerometer
High dynamic range gyroscope
Ambient light sensor

Readiness app
Vitals app with heart rate, respiratory rate, wrist temperature, sleep duration, and heart rate variability (HRV)
Blood Oxygen app
ECG app
Heart Rate app
High and low heart rate notifications
Recovery HRV
High‑frequency background heart rate tracking
Irregular rhythm notifications
Advanced Cycle Tracking app with fertile window estimates, retrospective ovulation estimates, and perimenopause and menopause support
Medications app
Mindfulness app with state of mind tracking
Noise app
Sleep app including sleep stages
Sleep score
Sleep apnea notifications
Hypertension notifications

watchOS
watchOS is the world’s most advanced wearable operating system, with apps and features designed to keep you active, healthy, safe, and connected.

Built-in rechargeable lithium-ion battery

Multiday battery life, up to 50 hours of normal use12
Up to 84 hours in Low Power Mode
Up to 18 hours workout tracking
Up to 25 hours Extended Workout tracking
Up to 45 hours Max Extended Workout tracking

Up to 80% charge in about 45 minutes
15 minutes for up to 18 hours of normal use
5 minutes for up to 10 hours of sleep tracking

Customizable Action button
Digital Crown with haptic feedback
Side button
Single tap, double tap, and wrist flick gestures
Siri powered by Apple Intelligence

Fits 130–210mm wrists
Controls:
Customizable Action button
Digital Crown with haptic feedback
Side button
Double tap and wrist flick gestures
Siri with on‑device processing

Round

1245 sq mm display area

Always‑On Retina display with wide‑angle OLEDs and LTPO3
1Hz refresh

Active area (422 by 514 pixels, 326 pixels per inch)
Flat sapphire crystal display
Up to 3000 nits peak brightness
1 nit minimum brightness
Night Mode for Apple Watch Ultra faces (Modular Ultra, Wayfinder, Orienteering)

Active area 422 by 514 pixels, 326 pixels per inch
Flat sapphire crystal display

3000 nits peak brightness
1 nit minimum brightness
Night Mode for Apple Watch Ultra faces (Modular Ultra, Wayfinder, Orienteering)

Support for 2.4GHz and 5GHz Wi‑Fi networks
Wi‑Fi 4 (802.11n)

Bluetooth 5.3

Precision dual‑frequency GPS (GPS, Galileo, QZSS, and BeiDou)
Second‑generation Ultra Wideband chip

Supports RedCap for 5G and LTE

Black titanium case
Natural titanium case

Grade 5

On-wrist operating temperature: –4° to 130° F (–20° to 55° C)
Operating temperature: 32° to 95° F (0° to 35° C)
Non-operating storage temperature: –4° to 113° F (–20° to 45° C)
Dive operating temperature: 32° to 104° F (0° to 40° C)
Relative humidity: 5% to 90% noncondensing
Operating altitude: –1600 feet to 29,500 feet (–500m to 9000m)

Water resistance 100m (swim, snorkel, scuba, high-speed water sports) under ISO standard 22810:2010
Dust resistance IP6X under IEC 60529

Height: 49mm
Width: 44mm
Depth: 12mm

Weight (natural): 63.0 grams
Weight (black): 63.1 grams

Dark Olive
Burgundy
Desert
Dark Umber
Sand
Translucent Black
Translucent Kelp
Translucent Gray

1 year