Apple Watch Ultra 3

Operating system watchOS 26 -
Display 1.98 inches 514x422 pixels
Storage 64 GB storage
Performance - Apple S10
Battery 599 mAh -
Camera -

Apple Watch Ultra 3 Specifications

Launch

Announced	2025, September 09
Status	Available. Released 2025, September 19

Network

Technology	GSM / HSPA / LTE / 5G
2g Bands	GSM 850 / 900 / 1800 / 1900
3g Bands	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, Canada
4g Bands	1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada
5g Bands	SA/NSA
Speed	HSPA, LTE, 5G

Body & Build Quality

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 certified100m water resistant (22810:2010)40m swimproof/diving (EN13319)MIL-STD-810H compliantECG certified (region dependent SW application; HW available on all models)

Display Features

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
Chipset	Apple S10
Cpu	Dual-core
Gpu	PowerVR

Memory

Card Slot	No
Internal	64GB

Sound

Loudspeaker	Yes, with dual speakers (86-decibel)
35mm Jack	No

Connectivity

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