Samsung Galaxy Watch 4 (40mm) vs Apple Watch Series 3 (38mm) Specs Comparison

Availability

Officially announced
Aug 11, 2021

Design

Dimensions
	1.52 x 1.31 x 0.45 inches 38.6 x 33.3 x 11.4 mm
Weight
	1.50 oz / 42.4 g
Materials
	Back: Ceramic Frame: Stainless steel
Materials & Colors
Black, Silver, Green, Gold
Resistance
Water (up to 50 meters), Dust; IP68; MIL-STD-810 certified	Water, Dust
Colors
	Space Black, Silver

Display

Size
1.2-inch	1.5-inch, 55.12% screen-to-body
Type
Super AMOLED	OLED, 1000 nits
Resolution
450x450px, 530 PPI	340x272px, 290 PPI
Protection
Corning Gorilla Glass DX+	Sapphire
Features
	Pressure-sensitive, Scratch-resistant glass

Hardware

System chip
Exynos W920 (5 nm)	Apple S3
Processor
	Dual-core
GPU
	PowerVR
Memory
1.5GB/16GB	768GB/16GB
OS
Wear OS	watchOS (8.x, 7.x, 6.1, 6.x, 5.1, 5, 4.x)

Battery

Type
247 mAh, Li - Ion	279 mAh
Charging
Qi wireless charging	Qi wireless charging

Connectivity & Features

Bluetooth
5.0	4.2
WLAN
a,b,g,n,ac,dual-band 802.11 a, b, g, n, ac	b,g,n 802.11 b, g, n
Sensors
Accelerometer, Gyroscope, Compass, Heart rate, Barometer, ECG, Blood Oxygen, Ambient light sensor	Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer
Location
GPS, Glonass, Galileo, BeiDou	A-GPS, Glonass
Other
NFC	NFC

Multimedia

Headphones
	No 3.5mm jack
Speakers
Loudspeaker	Loudspeaker

Cellular

4G (FDD) Bands
	1, 3, 5, 7, 8, 18, 19, 20, 26
3G Bands
	1, 5, 8
Data Speed
	LTE, HSDPA+ (4G) 42.2 Mbit/s
SIM type
	eSIM

Links

Full specifications
Samsung Galaxy Watch 4 (40mm) Specs	Apple Watch Series 3 (38mm) Specs
PhoneArena Review
Samsung Galaxy Watch 4 (40mm) Review	Apple Watch Series 3 (38mm) Review