Apple Watch Series 3 (42mm) vs Apple Watch Series 3 (38mm) Specs Comparison

Design

Dimensions
1.67 x 1.43 x 0.45 inches 42.5 x 36.4 x 11.4 mm	1.52 x 1.31 x 0.45 inches 38.6 x 33.3 x 11.4 mm
Weight
1.86 oz / 52.8 g	1.50 oz / 42.4 g
Materials
Back: Ceramic Frame: Stainless steel	Back: Ceramic Frame: Stainless steel
Resistance
Water, Dust	Water, Dust
Colors
Space Black, Silver	Space Black, Silver

Display

Size
1.6-inch, 55.61% screen-to-body	1.5-inch, 55.12% screen-to-body
Type
OLED, 1000 nits	OLED, 1000 nits
Resolution
390x312px, 303 PPI	340x272px, 290 PPI
Protection
Sapphire	Sapphire
Features
Pressure-sensitive, Scratch-resistant glass	Pressure-sensitive, Scratch-resistant glass

Hardware

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

Battery

Type
341 mAh	279 mAh
Charging
Qi wireless charging	Qi wireless charging

Connectivity & Features

Bluetooth
4.2	4.2
WLAN
b,g,n 802.11 b, g, n	b,g,n 802.11 b, g, n
Sensors
Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer	Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer
Location
A-GPS, Glonass	A-GPS, Glonass
Other
NFC	NFC

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Loudspeaker	Loudspeaker

Cellular

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

Discover more

Full Specs Apple Watch Series 3 (42mm) Specs PA Review Apple Watch Series 3 (42mm) Review

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