Hereis a detailed comparison between the Apple Watch Series 4 and Series 3 so you know which variant to pick up down the road Apple Watch series is an increase in case size from 38mm and 42mm AppleWatch Series 4 compared. The older Apple Watches force some watch faces to be small circles, while the S4 gets to enjoy a full-screen graphic (42mm S3, left; 40mm S4, right) $60 at Amazon Iknow I couldn’t notice the size change watching so many reviews, so here are a few images that may (or may not) demonstrate the difference between the 2 models (Apple Watch Series 4 44mm vs. series 3 42mm [and yes, I pasted the long annoying text just for SEO purposes]). AppleWatch Series 1 vs Apple Watch Series 8 comparison on basis of features design display battery, reviews & ratings and much more with full phone specifications at Gadgets Now Here’s EVERY MODEL) New Apple Watch: Size Guide (EVERY MODELS) More Size Comparison Guides: Frequently Asked Questions Apple Watch Size Yesthe Series 3 screen is pretty small - it means the UI and text is pretty small and the catalogue of Watch faces is very limited compared to the SE - which has a bigger screen. RoryLam • 2 yr. ago. Maybe I shd really go for a se then. arlenarmageddon Space Black Titanium Edition • 2 yr. ago. I've never used an s3 so I can't offer any 92qNg.