Updated : Nov 06, 2025, 5:13 AM

Apple Watch Series 3 (42mm)

Full Specifications

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The Apple Watch Series 3 (42mm) is most commonly compared with these phones:

Design
Dimensions	1.67 x 1.43 x 0.45 inches 42.5 x 36.4 x 11.4 mm
Weight	1.86 oz / 52.8 g
Materials	Back: Ceramic Frame: Stainless steel
Resistance	Water, Dust
Colors	Space Black, Silver

Display
Size	1.6-inch, 55.61% screen-to-body
Type	OLED, 1000 nits
Resolution	390x312px, 303 PPI
Protection	Sapphire
Features	Pressure-sensitive, Scratch-resistant glass

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

Battery
Type	341 mAh
Charging	Qi wireless charging

Connectivity & Features
Bluetooth	4.2
WLAN	b,g,n 802.11 b, g, n
Sensors	Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer
Location	A-GPS, Glonass
Other	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
SIM type	eSIM

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Rival Devices

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