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.

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
1.7-inch
1GB · 32GB
1GB · 64GB
308 mAh
308 mAh
Check prices

Availability

Officially announced
Sep 07, 2022 Sep 12, 2023

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, 66.64% screen-to-body 1.7-inch, 63.01% screen-to-body
Type
OLED, 1000 nits OLED, 1000 nits
Resolution
484x396px, 329 PPI 430x352px, 329 PPI

Hardware

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

Battery

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

Camera

Connectivity & Features

Bluetooth
5.0 Yes
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, Altimeter, Compass, Heart rate, Thermometer, Barometer, ECG, Blood Oxygen
Location
A-GPS, Glonass, Galileo, BeiDou, QZSS A-GPS, Glonass, Galileo, BeiDou, QZSS
Other
NFC NFC, Ultra Wideband (UWB)

Multimedia

Speakers
Loudspeaker Loudspeaker
Additional microphone(s)
Yes Yes

Cellular

4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 66 1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 66
4G (TDD) Bands
39, 40, 41 39, 40, 41
3G Bands
1, 2, 4, 5 1, 2, 4, 5
Data Speed
LTE, HSDPA+ (4G) 42.2 Mbit/s LTE, HSDPA+ (4G) 42.2 Mbit/s
SIM type
eSIM eSIM

Alternative variants

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