The Apple Watch Ultra 3 is a rugged adventure smartwatch with a 49 mm titanium case, sapphire crystal screen, and LTPO3 wide-angle OLED display that offers up to 42 hours of battery life (72 hrs in Low Power Mode). It adds 5G, dual-antenna support, and two-way satellite communication for emergencies or messaging off-grid. New health features include sleep scoring and chronic-hypertension notifications.
Key Features
09 September 2025
watchOS 26
Apple S10
64GB
1.98 inches
Li-Ion
5G
-
Technical Specifications
Speed
HSPA, LTE, 5G
Network
2G Band
GSM 850 / 900 / 1800 / 1900
3G Band
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Band
1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66
5G Band
SA/NSA
Launch
Annoucement
09 September 2025
Availability
Available
Body
Dimentions
49 x 44 x 12 mm
Weight
61.6 Gram
Build
Sapphire crystal front, ceramic/sapphire crystal back, titanium frame (grade 5)
Display
Screen Type
Retina LTPO3 OLED, 3000 nits (peak)
Screen Size
1.98 inches
Resolution
514 x 422 pixels (~326 ppi density)
Protection
Sapphire crystal glass
Wide-angle OLED
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)
Operating Platform
OS
watchOS 26
Chip Set
Apple S10
CPU
Dual-core
GPU
PowerVR
Memory
external Memory
No
Internal Memory
64GB
Camera
No
Selfie camera
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
Data
2G GSM, 3G HSPA, 4G LTE, 5G capable
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
Loud Speeker
Yes, with dual speakers
Battery
Type & Capacity
Li-Ion
Charging
Wireless, 0-80% in 45 min
Misc
SIM
eSIM
Color
Natural, Black
Modals
A3281, A3282
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