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Apple Watch SE (44mm) vs Apple Watch Series 3 (42mm) Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

8.9	7.0
Apple Watch SE (44mm)	Apple Watch Series 3 (42mm)
Released · Sep 18, 2020	Released · 2017
1.8-inch · 448x368px	1.6-inch · 390x312px
1GB · 32GB	768GB · 16GB
	341 mAh

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)
Wrist size
Case fits 140-220 mm wrists
Materials
	Back: Ceramic Frame: Stainless steel
Materials & Colors
Aluminum: Silver, Space gray, Gold
Resistance
Water (up to 50 meters)	Water, Dust
Colors
	Space Black, Silver

Display

Size
1.8-inch	1.6-inch
Resolution
448x368px, 326 PPI	390x312px, 303 PPI
Technology
OLED	OLED
Screen-to-body
	55.61 %
Peak brightness
1000 cd/m2 (nit)	1000 cd/m2 (nit)
Features
Pressure-sensitive, Scratch-resistant glass (Sapphire), Ambient light sensor	Pressure-sensitive, Scratch-resistant glass (Sapphire)

Hardware

System chip
Apple S5	Apple S3
Processor
Dual-core	Dual-core
GPU
PowerVR	PowerVR
RAM
1GB	768GB
Internal storage
32GB	16GB
Storage expansion
not expandable
OS
watchOS (9.x, 8.x, 7.x)	watchOS (8.x, 7.x, 6.1, 6.x, 5.1, 5, 4.x)
Compatible devices
Apple iPhone 6s or later with iOS 13 or later

Battery

Capacity
	341 mAh
Type
Li - Ion
Charging
Magnetic charging	Qi wireless charging

Camera

Connectivity & Features

Bluetooth
5.0	4.2
WLAN
802.11 b,g,n	802.11 b,g,n
Location
GPS, Glonass	A-GPS, Glonass
Sensors
Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer	Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer
Other
NFC	NFC

Multimedia

Headphones
	No 3.5mm jack
Speakers
Loudspeaker	Loudspeaker

Cellular

4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 25(1900+), 26(850+), 66(AWS-3)	Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+)
4G (TDD)
Bands 39(1900+), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850)	Bands 1(2100), 5(850), 8(900)
Data Speed
LTE, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE, HSDPA+ (4G) 42.2 Mbit/s
SIM type
eSIM	eSIM

Buyers information

MSRP
$ 359

Availability

Officially announced
Sep 15, 2020

Alternative variants

non-LTE version


MSRP	$ 309

Links

Full specifications
Apple Watch SE (44mm) Specs	Apple Watch Series 3 (42mm) Specs
PhoneArena Review
Apple Watch SE (44mm) Review	Apple Watch Series 3 (42mm) Review