Apple Watch Ultra 4

Apple Watch Ultra 4
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📅Released 2026, September 18
⚖️63 g (2.22 oz), 49 x 44 x 12 mm thickness
📱watchOS 27
💾64GB, No card slot
📱
1.98"
514x422 pixels
🏿
N/A
Apple S11
🔋
N/A

Video Review

Is The Apple Watch Ultra 4 Worth It?

Is The Apple Watch Ultra 4 Worth It?

Tech Fowler

Network GSM / HSPA / LTE / 5G

Launch

Announced
2026, September 09
Status
Available. Released 2026, September 18

Body

Dimensions
49 x 44 x 12 mm (1.93 x 1.73 x 0.47 in)
Weight
63 g (2.22 oz)
Build
Sapphire crystal front, ceramic/zirconia 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 27
Chipset
Apple S11
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, always-on heart rate, barometer, always-on altimeter (-500m to 9000m), compass, SpO2, VO2max, temperature (body), temperature (water)
• Health Sensing System: third‑generation electrical heart sensor, always‑on optical heart sensor, blood oxygen sensor, temperature sensor
• Temperature sensing (0.01˚ accuracy)
• Depth gauge (±1m accuracy)
• Ultra Wideband (UWB) support (gen2 chip)
• Emergency SOS via satellite

Battery

Charging
Wireless, 0-80% in 45 min

Misc

Colors
Natural, Black
Models
A3579

⚠️ Information may not be 100% accurate. Read More

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