Apple Watch Ultra 3

Name: Apple Watch Ultra 3
Brand: Apple

Fully verifiedSmartwatchReleased · 2025-09-19Announced 2025-09-09

Specs verified 2026-10-02 · source

Apple Watch Ultra 3 is Apple's 2025 rugged adventure smartwatch, featuring a titanium case, satellite connectivity, and up to 42 hours of normal-use battery life.

Official product page

At a glance

DisplayAlways-On Retina display, wide-angle OLEDs, LTPO3, 1Hz refresh, flat sapphire crystal, up to 3000 nits peak brightness

Case sizes49mm: Height 49mm, Width 44mm, Depth 12mm

ChipS10 (64-bit dual-core, 4-core Neural Engine)

BatteryMultiday battery life, up to 42 hours of normal use, up to 72 hours in Low Power Mode

Water resistance100m water resistance (ISO 22810:2010); recreational scuba diving to 40m; IP6X dust resistance; MIL-STD-810H tested

ConnectivityBluetooth 5.3

SensorsElectrical heart sensor, Third-generation optical heart sensor, Blood oxygen sensor, Temperature sensor, Depth gauge, Water temperature sensor, Compass, Always-on altimeter, High-g accelerometer, High dynamic range gyroscope, Ambient light sensor

OSwatchOS

Device overview

Display

Always-On Retina display, wide-angle OLEDs, LTPO3, 1Hz refresh, flat sapphire crystal, up to 3000 nits peak brightness, with 422×514 pixels at 326 ppi, 1245 sq mm display area resolution.

Chip

Health & sensors

Health and sensor features: Electrical heart sensor, Third-generation optical heart sensor, Blood oxygen sensor, Temperature sensor, Depth gauge, Water temperature sensor, Compass, Always-on altimeter, High-g accelerometer, High dynamic range gyroscope, Ambient light sensor.

Battery

Battery life: Multiday battery life, up to 42 hours of normal use, up to 72 hours in Low Power Mode.

Connectivity

Supports Wi-Fi 4 (802.11n), Bluetooth 5.3, and NFC for Apple Pay and GymKit.

Specifications

Design & Build
Water resistance	100m water resistance (ISO 22810:2010); recreational scuba diving to 40m; IP6X dust resistance; MIL-STD-810H tested
Colors	Natural, Black
Weight	Natural titanium: 61.6 g Black titanium: 61.8 g
Case dimensions	49mm: Height 49mm, Width 44mm, Depth 12mm
Build materials	Titanium case (Grade 5), sapphire crystal front, ceramic back
Display
Display	Always-On Retina display, wide-angle OLEDs, LTPO3, 1Hz refresh, flat sapphire crystal, up to 3000 nits peak brightness
Resolution	422×514 pixels at 326 ppi, 1245 sq mm display area
Performance
Chipset	S10 (64-bit dual-core, 4-core Neural Engine)
Memory & Storage
Storage	64 GB
Battery & Charging
Battery life	Multiday battery life, up to 42 hours of normal use, up to 72 hours in Low Power Mode
Connectivity
Wi-Fi	Wi-Fi 4 (802.11n)
Bluetooth	Bluetooth 5.3
Contactless payments	NFC for Apple Pay and GymKit
Software
Operating system at launch	watchOS
Security & Sensors
Health sensors	Electrical heart sensor, Third-generation optical heart sensor, Blood oxygen sensor, Temperature sensor, Depth gauge, Water temperature sensor, Compass, Always-on altimeter, High-g accelerometer, High dynamic range gyroscope, Ambient light sensor

Sources & verification

This device is fully verified: every required fact is confirmed from a Tier 1 (manufacturer/official) source.

Apple Inc.Manufacturer support documentation
Tier 1
Apple Inc.Manufacturer newsroom
Tier 1
Apple Inc.Manufacturer support documentation
Tier 1

Tier 1 sources are the manufacturer's own product pages, technical specification sheets, or support documentation. Tier 2 sources are reputable independent technical references, used only for facts that couldn't be confirmed from official documentation. Last verified 2026-10-02.