Apple Watch Ultra 4
A battery you can't outrun.
Background
The Apple Watch Ultra 4 was announced on September 9, 2026 and went on sale September 18. It pairs the S11 chip with a rebuilt health sensing system (5-second background heart rate reads, Readiness index), extending battery life to 50 hours (+14 hours) in normal use, 84 hours in Low Power Mode, and up to 45 hours in Maximum Extended Workout mode. Peak display brightness rises to 3000 nits, and a black titanium finish joins natural titanium (both 3D-printed from 100% recycled titanium), alongside 100m water resistance, EN13319 dive certification and dual-frequency GPS. Prices start at ¥6,499 (China).
Source: Apple Newsroom
Key Specs
Display49mm Always-On LTPO3 OLED Retina display (wide-angle)
ChipApple S11
Memory4GB
Full Specifications
Basic Info
Release Date2026.09.09
Original PriceFrom ¥6,499
OS SupportwatchOS 27 ~ Latest
Support StatusSupported
Unlock MethodPasscode
Chip & Storage
ChipApple S11（64-bit dual-core processor, 4-core Neural Engine）
CoprocessorApple W3 + Apple U2
Memory4GB
Storage64GB
Capacity64 GB
Display
Screen Size49mm
Screen TypeAlways-On LTPO3 OLED Retina display (wide-angle)
Resolution49mm：422 × 514
PPI326
Connectivity
Wi-Fi802.11n 2.4&5GHz
BluetoothBluetooth 5.3
Input MethodDigital Crown, multi-touch, double tap gesture, Action button
System RequirementsiPhone 11 or later running iOS 27 or later
Power
BatteryBuilt-in rechargeable lithium-ion battery
Battery Life50 hours
Power AdapterApple Watch Magnetic Fast Charging Cable to USB-C (1m)
Maximum Battery Cycle Count1000
Audio & Sensors
SensorsHigh-g accelerometer / High dynamic range gyroscope / Ambient light sensor / Heart rate sensor (optical, all-new) / Heart rate sensor (electrical) / Always-on barometric altimeter / Magnetometer / Blood oxygen sensor / Water temperature sensor / Depth gauge
Audio InputMicrophone
Audio OutputSpeaker (Siren)
Body & Dimensions
Size & Weight49mm：49 mm × 12 mm × 44 mm，63.0g（原色钛）/ 63.1g（黑色钛）
Color
Available Colors
Model Identifier
Model IDWatch8,1（49mm GPS + Cellular）
Model NumbersA3579、A3580