Apple Watch Series 4 (44mm) vs Apple Watch Ultra 2 Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Apple Watch Series 4 (44mm) Apple Watch Ultra 2
Released · September 2018
Released · Sep 22, 2023
1.8-inch
1.9-inch
1GB · 16GB
64GB
292 mAh
564 mAh
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Availability

Officially announced
Sep 12, 2023

Design

Dimensions
1.73 x 1.50 x 0.42 inches
44.0 x 38.0 x 10.7 mm
Weight
1.29 oz (36.7 g)
Materials
Frame: Aluminum Back: Ceramic
Frame: Titanium
Resistance
Water Water, Dust; IP6X; MIL-STD-810 certified
Colors
Silver, Black

Display

Size
1.8-inch, 59.89% screen-to-body 1.9-inch
Type
OLED, 1000 nits OLED, 3000 nits
Resolution
448x368px, 326 PPI 502x410px, 338 PPI
Protection
Sapphire Sapphire
Features
Pressure-sensitive, Scratch-resistant glass, Ambient light sensor

Hardware

System chip
Apple S4 (7 nm) Apple S9
Processor
Dual-core Dual-core
GPU
Apple G11M PowerVR
Memory
1GB/16GB 64GB
Storage expansion
not expandable not expandable
OS
watchOS (9.x, 8.x, 7.x, 6.x, 5) watchOS (10.x)

Battery

Type
292 mAh 564 mAh, Li - Ion
Charging
Magnetic charging Qi wireless charging

Camera

Connectivity & Features

Bluetooth
5.0 5.3
WLAN
b,g,n
802.11 b, g, n
b,g,n
802.11 b, g, n
Sensors
Accelerometer, Gyroscope, Heart rate, Barometer, Ambient light sensor Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Thermometer, Barometer, ECG, Blood Oxygen
Location
Glonass, Galileo, QZSS A-GPS, Glonass, Galileo, BeiDou, QZSS
Other
NFC NFC, Ultra Wideband (UWB)

Multimedia

Speakers
Loudspeaker Multiple speakers
Additional microphone(s)
Noise cancellation Yes

Cellular

4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 25, 26, 66
4G (TDD) Bands
39, 40, 41
3G Bands
1, 2, 4, 5
Data Speed
LTE, HSPA LTE-A, HSDPA+ (4G) 42.2 Mbit/s
SIM type
eSIM eSIM
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