Compare Apple Watch models

Series 4
Buy in store
 

Series 3
Buy in store
Apple Watch Series 4 

Apple Watch Series 3
GPS + Cellular GPS 

GPS + Cellular

GPS
GPS + Cellular 

GPS + Cellular
GPS 

GPS

Summary

44mm case 40mm case 

42mm case

38mm case
Apple Watch Series 4 case Apple Watch Series 4 case 

Apple Watch Series 3 case Apple Watch Series 3 case
977 sq mm
display area
759 sq mm
display area
 

740 sq mm
display area

563 sq mm
display area
44mm case 

40mm case
Apple Watch Series 4 case 

Apple Watch Series 3 case
977 sq mm
display area
 

740 sq mm
display area
40mm case 

38mm case
Apple Watch Series 4 case 

Apple Watch Series 3 case
759 sq mm
display area
 

563 sq mm
display area
Apple Watch Series 4 Sideview Icon 

Apple Watch Series 3 Sideview Icon
10.7mm thin 

11.4mm thin
Apple Watch Series 4 Chip 

Apple Watch Series 3 Chip
64-bit dual-core S4 processor
Up to 2x faster than S3 processor
 

Dual-core S3 processor
 
Electrical Heart Sensor 

Not Featured
Electrical heart sensor 

 

Second-Generation Optical Heart Sensor 

Optical Heart Sensor
Second-generation optical
heart sensor
 

Optical heart sensor
Fall detection 

Not featured
Fall Detection 

 

Digital Crown with Haptic Feedback 

Digital Crown
Digital Crown with
haptic feedback
 

Digital Crown

Finishes

Apple Watch Series 4 

Apple Watch Series 3
GPS + Cellular GPS 

GPS + Cellular GPS
Stainless Steel Aluminium 

Aluminium Aluminium
Apple Watch Series 4 Colors Apple Watch Series 4 Colors 

Apple Watch Series 3 Colors Apple Watch Series 3 Colors
Aluminium 

 

Apple Watch Series 4 Colors 

 

GPS + Cellular 

GPS + Cellular
Stainless Steel 

Aluminium
Apple Watch Series 4 Colors 

Apple Watch Series 3 Colors
Aluminium 

 

Apple Watch Series 4 Colors 

 

GPS 

GPS
Aluminium 

Aluminium
Apple Watch Series 4 Colors 

Apple Watch Series 3 Colors
Apple Watch Nike+
available in silver and space grey aluminium.
 

Apple Watch Nike+
available in space grey aluminium.

Features

GPS, GLONASS, Galileo and QZSS

Barometric altimeter

Water resistant
50 metres1

Electrical heart sensor

Optical heart sensor

Improved accelerometer
up to 32 G-forces

Improved gyroscope

Ambient light sensor

Capacity 16GB

All ceramic and sapphire crystal back

 

GPS, GLONASS, Galileo and QZSS

Barometric altimeter

Water resistant
50 metres1

Optical heart sensor

Accelerometer
up to 16 G-forces

Gyroscope

Ambient light sensor

Capacity 16GB
GPS + Cellular

Capacity 8GB
GPS

Ceramic and sapphire crystal back (center)
GPS + Cellular

Composite back (center)
GPS

Display

44mm
368×448 pixels
977 sq mm display area
 

42mm
312×390 pixels
740 sq mm display area
40mm
324×394 pixels
759 sq mm display area
 

38mm
272×340 pixels
563 sq mm display area
LTPO OLED Retina display with Force Touch
1,000 nits brightness
 

OLED Retina display with Force Touch
1,000 nits brightness

Chip

S4 with 64-bit dual-core processor
Up to 2x faster processor
 

S3 with dual-core processor
 
W3
Apple wireless chip
 

W2
Apple wireless chip

Connectivity

LTE and UMTS2
GPS + Cellular models
 

LTE and UMTS2
GPS + Cellular models
Wi-Fi (802.11b/g/n 2.4GHz) 

Wi-Fi (802.11b/g/n 2.4GHz)
Bluetooth 5.0 

Bluetooth 4.2

Power

Built-in rechargeable lithium-ion battery
Up to 18 hours3
 

Built-in rechargeable lithium-ion battery
Up to 18 hours4
Magnetic charging cable 

Magnetic charging cable
USB power adapter 

USB power adapter
GPS + Cellular model only