Apple Watch Series 8 (45mm) vs Apple Watch Ultra 2 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.

Apple Watch Series 8 (45mm) Apple Watch Ultra 2
Released · Sep 07, 2022
Released · Sep 22, 2023
1.9-inch
1.9-inch
1GB · 32GB
64GB
308 mAh
564 mAh
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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
Weight
1.37 oz (38.8 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

Display

Size
1.9-inch, 66.64% screen-to-body 1.9-inch
Type
OLED, 1000 nits OLED, 3000 nits
Resolution
484x396px, 329 PPI 502x410px, 338 PPI
Protection
Sapphire

Hardware

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

Battery

Type
308 mAh, Li - Ion 564 mAh, Li - Ion
Charging
Qi wireless charging Qi wireless charging

Camera

Connectivity & Features

Bluetooth
5.0 5.3
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 Multiple speakers
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, 12, 13, 14, 17, 18, 19, 25, 26, 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-A, 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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