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Apple Watch Series 8 (45mm) vs Apple Watch Series 9 (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.

Comparison mode:
Specs Size
Differences only
Apple Watch Series 8 (45mm)
9.0
Apple Watch Series 9 (45mm)
Apple Watch Series 8 (45mm) Apple Watch Series 9 (45mm)
Released · Sep 07, 2022
Released · Sep 22, 2023
1.9-inch · 484x396px
1.7-inch · 430x352px
1GB · 32GB
1GB · 64GB
308 mAh
308 mAh
Check prices Check prices

Design

Dimensions
1.77 x 1.50 x 0.42 inches
45 x 38 x 10.7 mm 		1.61 x 1.38 x 0.42 inches
41 x 35 x 10.7 mm
Weight
1.37 oz (38.8 g) 1.82 oz (51.5 g)
Materials
Back: Ceramic
Frame: Aluminum 		Back: Ceramic
Frame: Aluminum
Resistance
Water, Dust; IP6X Water, Dust; IP6X
Colors
Midnight, Starlight, Green, Blue, Red Midnight, Starlight, Green, Blue, Red

Display

Size
1.9-inch 1.7-inch
Resolution
484x396px, 329 PPI 430x352px, 329 PPI
Technology
OLED OLED
Screen-to-body
66.64 % 63.01 %
Peak brightness
1000 cd/m2 (nit) 1000 cd/m2 (nit)

Hardware

System chip
Apple S8 Apple S9
Processor
Dual-core Dual-core
GPU
PowerVR PowerVR
RAM
1GB 1GB
Internal storage
32GB 64GB
Storage expansion
not expandable not expandable
OS
watchOS (9.x) watchOS (10.x)

Battery

Capacity
308 mAh 308 mAh
Type
Li - Ion Li - Ion
Charging
Qi wireless charging Qi wireless charging

Camera

Connectivity & Features

Bluetooth
5.0 Yes
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)

Multimedia

Speakers
Loudspeaker Loudspeaker
Additional microphone(s)
Yes Yes

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

Availability

Officially announced
Sep 07, 2022 Sep 12, 2023

Alternative variants

GPS Only
With stainless steel frame
Weight 1.82 oz (51.5 g)
Materials Frame: Stainless steel
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