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Apple Watch Ultra vs Apple Watch Series 8 (45mm) 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	9.0
Apple Watch Ultra	Apple Watch Series 8 (45mm)
Released · Sep 23, 2022	Released · Sep 07, 2022
1.9-inch · 502 x 410 px	1.9-inch · 484 x 396 px
32GB	1GB · 32GB
542 mAh	308 mAh
Check prices	Check prices

Display

Size
1.9-inch	1.9-inch
Resolution
502 x 410 px, 338 PPI	484 x 396 px, 329 PPI
Technology
OLED	OLED
Screen-to-body
54.09 %	66.64 %
Peak brightness
2000 cd/m2 (nit)	1000 cd/m2 (nit)
Features
Scratch-resistant glass (Sapphire)

Hardware

System chip
Apple S8	Apple S8
Processor
Dual-core	Dual-core
GPU
PowerVR	PowerVR
RAM
	1GB
Internal storage
32GB, not expandable	32GB, not expandable
OS
watchOS (9.x)	watchOS (9.x)
Device type
Smartwatch	Smartwatch

Battery

Capacity
542 mAh	308 mAh
Type
Li - Ion, Not user replaceable	Li - Ion, Not user replaceable
Charging
Qi wireless charging	Qi wireless charging

Camera

Design

Dimensions
1.93 x 1.73 x 0.57 inches (49 x 44 x 14.4 mm)	1.77 x 1.50 x 0.42 inches (45 x 38 x 10.7 mm)
Weight
2.16 oz(61.3 g)	1.37 oz(38.8 g)
Materials
Back: Ceramic Frame: Titanium	Back: Ceramic Frame: Aluminum
Resistance
Water, Dust; IP6X; MIL-STD-810 certified	Water, Dust; IP6X
Colors
Midnight, Starlight, Green, Blue, Red	Midnight, Starlight, Green, Blue, Red

Cellular

4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 17(700 b), 18(800 Lower), 19(800 Upper), 25(1900+), 26(850+), 66(AWS-3)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3)
4G (TDD)
Bands 39(1900+), 40(2300), 41(2600+)	Bands 39(1900+), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850)
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s	LTE, HSDPA+ (4G) 42.2 Mbit/s
SIM type
eSIM	eSIM

Multimedia

Speakers
Multiple speakers	Loudspeaker
Additional microphone(s)
Yes	Yes

Connectivity & Features

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

Availability

Officially announced
Sep 07, 2022	Sep 07, 2022

Alternative variants

GPS Only

With stainless steel frame


Weight	1.82 oz(51.5 g)
Materials	Frame: Stainless steel

Links

Full specifications
Apple Watch Ultra Specs	Apple Watch Series 8 (45mm) Specs
PhoneArena Review
Apple Watch Ultra Review	Apple Watch Series 8 (45mm) Review