Apple Watch Series 3 Vs Apple Watch Series 4

Apple Watch Series 3 Vs Apple Watch Series 4: Looking to upgrade your Apple Watch? Read on to compare the Apple Watch Series 3 and the Apple Watch Series 4, and find out which one suits your needs better.

Feature	Apple Watch Series 3	Apple Watch Series 4
Display	1.65-inch OLED Retina display	1.78-inch LTPO OLED Retina display
Processor	Apple S3	Apple S4
Storage Capacity	8 GB	16 GB
Heart Rate Monitor	Yes	Yes
ECG	No	Yes
GPS	Yes	Yes
Water Resistance	Yes (up to 50 meters)	Yes (up to 50 meters)
Battery Life	Up to 18 hours	Up to 18 hours
Fall Detection	No	Yes
Cellular Connectivity	Optional	Optional
Operating System	watchOS	watchOS
Case Material	Aluminum, Stainless Steel	Aluminum, Stainless Steel, Ceramic
Dimensions	38mm or 42mm	40mm or 44mm
Weight	30.1g (38mm) or 32.3g (42mm)	30.1g (40mm) or 36.7g (44mm)