Apple Watch Series 8 (45mm) vs Apple Watch Ultra Specs Comparison

Display

Size
1.9-inch	1.9-inch
Resolution
484 x 396 px, 329 PPI	502 x 410 px, 338 PPI
Technology
OLED	OLED
Screen-to-body
66.64 %	54.09 %
Peak brightness
1000 cd/m2 (nit)	2000 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
308 mAh	542 mAh
Type
Li - Ion, Not user replaceable	Li - Ion, Not user replaceable
Charging
Qi wireless charging	Qi wireless charging

Camera

Design

Dimensions
1.77 x 1.50 x 0.42 inches (45 x 38 x 10.7 mm)	1.93 x 1.73 x 0.57 inches (49 x 44 x 14.4 mm)
Weight
1.37 oz(38.8 g)	2.16 oz(61.3 g)
Materials
Back: Ceramic Frame: Aluminum	Back: Ceramic Frame: Titanium
Resistance
Water, Dust; IP6X	Water, Dust; IP6X; MIL-STD-810 certified
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), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3)	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)
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, HSDPA+ (4G) 42.2 Mbit/s	LTE-A, HSDPA+ (4G) 42.2 Mbit/s
SIM type
eSIM	eSIM

Multimedia

Speakers
Loudspeaker	Multiple speakers
Additional microphone(s)
Yes	Yes

Connectivity & Features

Bluetooth
5.0	5.3
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	NFC, Ultra Wideband (UWB)

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