There is only one size, 41mm with a 1.2" display, and the design is unchanged from last year. There are a number of improvements on the inside, however.
Google Pixel Watch 2 arrives with new chipset and improved battery life - news
Google Pixel Watch 2: New rumour suggests battery life and fitness tracking improvements with Snapdragon W5 and Fitbit chips - News
Google Pixel Watch 2 may arrive later this year
The Pixel Watch 2 is a little better in every way
New Pixel Watch 2 chipset will hopefully bring better battery life
Introducing the Google Pixel Watch 2: Upgraded Chipset, Better Sensors, and More
Google Pixel Watch vs Fitbit Sense 2 – which is for you?
Google Pixel Watch 2 vs Google Pixel Watch 1: Specs, Prices And More
Pixel Watch 2 Specs Upgrade Could Mean Big Battery Life
Google Pixel Watch: Release Date, Price, Specs, and News
Google Pixel Watch 2 With Aluminum Body, 40% Better Accuracy And All-New Fitbit App Launched; Check Price, Specs Here
Google's Pixel Watch 2 offers solid upgrades
Google Pixel Watch 2 is a Fitbit Loaded with AI Technology