Apple Watch Series 3 (38mm) vs Samsung Galaxy Watch 8 (40mm) Specs Comparison

Availability

Officially announced
	Jul 09, 2025
Prices (MSRP)
	$350

Design

Dimensions
1.52 x 1.31 x 0.45 inches 38.6 x 33.3 x 11.4 mm	1.57 x 1.59 x 0.34 inches 40 x 40.4 x 8.6 mm
Weight
1.50 oz / 42.4 g	1.06 oz / 30.0 g
Materials
Back: Ceramic Frame: Stainless steel	Back: Aluminum
Resistance
Water, Dust	Water (up to 5 meters), Dust; IP68; MIL-STD-810 certified
Colors
Space Black, Silver

Display

Size
1.5-inch, 55.12% screen-to-body	1.3-inch
Type
OLED, 1000 nits	Super AMOLED
Resolution
340x272px, 290 PPI	438x438px, 462 PPI
Protection
Sapphire	Sapphire
Features
Pressure-sensitive, Scratch-resistant glass

Hardware

System chip
Apple S3	Exynos W1000 (3 nm)
Processor
Dual-core
GPU
PowerVR
Memory
768GB/16GB	2GB/32GB
OS
watchOS (8.x, 7.x, 6.1, 6.x, 5.1, 5, 4.x)	Wear OS

Battery

Type
279 mAh	325 mAh
Charging
Qi wireless charging

Connectivity & Features

Bluetooth
4.2	5.3
WLAN
b,g,n 802.11 b, g, n	a,b,g,n,ac 802.11 a, b, g, n, ac
Sensors
Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer	Accelerometer, Gyroscope, Pedometer, Compass, Heart rate, Thermometer, Barometer, Step detector, ECG, Blood Oxygen, Ambient light sensor
Location
A-GPS, Glonass	Glonass, Galileo, BeiDou
Other
NFC	NFC

Multimedia

Headphones
No 3.5mm jack
Speakers
Loudspeaker

Cellular

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

Discover more

Full Specs Apple Watch Series 3 (38mm) Specs PA Review Apple Watch Series 3 (38mm) Review

Full Specs Samsung Galaxy Watch 8 (40mm) Specs