Apple Watch Ultra 3

Network Technology

GSM / HSPA / LTE / 5G

Launch Announced 2025, September 09

Status Available. Released 2025, September 19

Body Dimensions 49 x 44 x 12 mm (1.93 x 1.73 x 0.47 in)

Weight 61.6 g or 61.8 g (black) (2.15 oz)

Build Sapphire crystal front, ceramic/sapphire crystal back, titanium frame (grade 5)

SIM eSIM

IP6X certified

100m water resistant (22810:2010)

40m swimproof/diving (EN13319)

MIL-STD-810H compliant

ECG certified (region dependent SW application; HW available on all models)

Display Type Retina LTPO3 OLED, 3000 nits (peak)

Size 1.98 inches

Resolution 514 x 422 pixels (~326 ppi density)

Protection Sapphire crystal glass

Wide-angle OLED

Platform OS watchOS 26, upgradable to watchOS 26.1

Chipset Apple S10

CPU Dual-core

GPU PowerVR

Memory Card slot No

Internal 64GB

Camera No

Sound Loudspeaker Yes, with dual speakers (86-decibel)

3.5mm jack No

Comms WLAN Wi-Fi 802.11 b/g/n, dual-band

Bluetooth 5.3, A2DP, LE

Positioning GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS

NFC Yes

Radio No

USB No

Features Sensors Accelerometer, gyro, heart rate, barometer, always-on altimeter (-500m to 9000m), compass, SpO2, VO2max, temperature (body), temperature (water)

Temperature sensing (0.01˚ accuracy)

Depth gauge (±1m accuracy)

Ultra Wideband (UWB) support (gen2 chip)

Emergency SOS via satellite

Battery Type Li-Ion 599 mAh

Charging Wireless, 0-80% in 45 min

Misc Colors Natural, Black