Apple Watch Series 3 (38mm) vs Samsung Galaxy Watch 4 (40mm) 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, Dust	Water (up to 50 meters), Dust; IP68; MIL-STD-810 certified
Colors
Space Black, Silver

Display

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

Hardware

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

Battery

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

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
b,g,n 802.11 b, g, n	a,b,g,n,ac,dual-band 802.11 a, b, g, n, ac
Sensors
Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer	Accelerometer, Gyroscope, Compass, Heart rate, Barometer, ECG, Blood Oxygen, Ambient light sensor
Location
A-GPS, Glonass	GPS, Glonass, Galileo, BeiDou
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
Apple Watch Series 3 (38mm) Specs	Samsung Galaxy Watch 4 (40mm) Specs
PhoneArena Review
Apple Watch Series 3 (38mm) Review	Samsung Galaxy Watch 4 (40mm) Review