Samsung Galaxy Watch 4 (40mm) vs OPPO Watch X2 Specs Comparison

Availability

Officially announced
Aug 11, 2021	Feb 20, 2025

Design

Dimensions
	1.87 x 1.83 x 0.46 inches 47.6 x 46.6 x 11.8 mm
Weight
	1.75 oz / 49.7 g
Materials
	Back: Plastic Frame: Stainless steel
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
Colors
	Lava Black, Summit Blue

Display

Size
1.2-inch	1.5-inch
Type
Super AMOLED	AMOLED, 2200 nits
Resolution
450x450px, 530 PPI	466x466px, 439 PPI
Protection
Corning Gorilla Glass DX+	Sapphire
Features
	Scratch-resistant glass, Ambient light sensor

Hardware

System chip
Exynos W920 (5 nm)	Snapdragon W5 Gen 1 (4 nm)
Memory
1.5GB/16GB	2GB/32GB
OS
Wear OS	Wear OS

Battery

Type
247 mAh, Li - Ion	648 mAh
Charging
Qi wireless charging
Charge speed
	Wired: 7.5W

Connectivity & Features

Bluetooth
5.0	5.2
WLAN
a,b,g,n,ac,dual-band 802.11 a, b, g, n, ac	a,b,g,n 802.11 a, b, g, n
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
Location
GPS, Glonass, Galileo, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou
Other
NFC	NFC

Multimedia

Speakers
Loudspeaker	Loudspeaker

Cellular

Data Speed
	LTE

Discover more

Full Specs Samsung Galaxy Watch 4 (40mm) Specs PA Review Samsung Galaxy Watch 4 (40mm) Review

Full Specs OPPO Watch X2 Specs