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Samsung Galaxy Watch 4 (40mm) vs Samsung Galaxy Watch 8 (40mm) 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.

7.8
Samsung Galaxy Watch 4 (40mm)	Samsung Galaxy Watch 8 (40mm)
Released · Aug 27, 2021	Expected release · Jul 25, 2025
1.2-inch	1.3-inch
1.5GB · 16GB	2GB · 32GB
247 mAh	325 mAh

Availability

Officially announced
Aug 11, 2021	Jul 09, 2025
Scheduled release
	(Official) Jul 25, 2025
Prices (MSRP)
	$350

Design

Dimensions
	1.57 x 1.59 x 0.34 inches 40 x 40.4 x 8.6 mm
Weight
	1.06 oz (30.0 g)
Materials
	Back: Aluminum
Materials & Colors
Black, Silver, Green, Gold
Resistance
Water (up to 50 meters), Dust; IP68; MIL-STD-810 certified	Water (up to 5 meters), Dust; IP68; MIL-STD-810 certified

Display

Size
1.2-inch	1.3-inch
Type
Super AMOLED	Super AMOLED
Resolution
450x450px, 530 PPI	438x438px, 462 PPI
Protection
Corning Gorilla Glass DX+	Sapphire

Hardware

System chip
Exynos W920 (5 nm)	Exynos W1000 (3 nm)
Memory
1.5GB/16GB	2GB/32GB
OS
Wear OS	Wear OS

Battery

Type
247 mAh, Li - Ion	325 mAh
Charging
Qi wireless charging

Camera

Connectivity & Features

Bluetooth
5.0	5.3
WLAN
a,b,g,n,ac,dual-band 802.11 a, b, g, n, ac	a,b,g,n,ac 802.11 a, b, g, n, ac
Sensors
Accelerometer, Gyroscope, Compass, Heart rate, Barometer, ECG, Blood Oxygen, Ambient light sensor	Accelerometer, Gyroscope, Pedometer, Compass, Heart rate, Thermometer, Barometer, Step detector, ECG, Blood Oxygen, Ambient light sensor
Location
GPS, Glonass, Galileo, BeiDou	Glonass, Galileo, BeiDou
Other
NFC	NFC

Multimedia

Speakers
Loudspeaker

Cellular

Data Speed
	LTE
SIM type
	eSIM

Links

Full specifications
Samsung Galaxy Watch 4 (40mm) Specs	Samsung Galaxy Watch 8 (40mm) Specs
PhoneArena Review
Samsung Galaxy Watch 4 (40mm) Review