Apple Watch Ultra vs Apple Watch Series 4 (40mm) 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.

9.0
Apple Watch Ultra
Apple Watch Ultra Apple Watch Series 4 (40mm)
Released · Sep 23, 2022
Released · September 2018
1.9-inch
1.6-inch
32GB
1GB · 16GB
542 mAh
225 mAh
Check prices

Availability

Officially announced
Sep 07, 2022

Design

Dimensions
1.93 x 1.73 x 0.57 inches
49 x 44 x 14.4 mm
1.57 x 1.34 x 0.42 inches
40.0 x 34.0 x 10.7 mm
Weight
2.16 oz (61.3 g) 1.06 oz (30.1 g)
Materials
Back: Ceramic
Frame: Titanium
Frame: Aluminum
Resistance
Water, Dust; IP6X; MIL-STD-810 certified Water
Colors
Midnight, Starlight, Green, Blue, Red Silver, Black

Display

Size
1.9-inch, 54.09% screen-to-body 1.6-inch, 57.48% screen-to-body
Type
OLED, 2000 nits OLED, 1000 nits
Resolution
502x410px, 338 PPI 394x324px, 325 PPI
Protection
Sapphire Sapphire
Features
Pressure-sensitive, Scratch-resistant glass, Ambient light sensor

Hardware

System chip
Apple S8 Apple S4 (7 nm)
Processor
Dual-core Dual-core
GPU
PowerVR Apple G11M
Memory
32GB 1GB/16GB
Storage expansion
not expandable not expandable
OS
watchOS (9.x) watchOS (9.x, 8.x, 7.x, 6.x, 5)

Battery

Type
542 mAh, Li - Ion 225 mAh
Charging
Qi wireless charging Magnetic charging

Camera

Connectivity & Features

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

Multimedia

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

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-A, HSDPA+ (4G) 42.2 Mbit/s LTE, HSPA
SIM type
eSIM eSIM

Alternative variants

With stainless steel case
Weight 1.40 oz (39.8 g)
Materials Frame: Stainless steel
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