Here's how you can pair a Wear OS smartwatch with a new phone without resetting it, thus retaining all the apps and data onboard the watch.
How to Pair Your Galaxy Watch to a New Phone Without Resetting
Google Pixel Watch 2 review: Google brains with Fitbit brawn - TheStreet
Connect Samsung Galaxy Watch to a new Phone without losing Data
Google Pixel Watch 2 (Polished Silver case and Porcelain Active band) Smartwatch with GPS, Bluetooth®, and Wi-Fi at Crutchfield
Pair Android Wear Watches to New Phones Without Factory Resetting
Set up your watch - Android - Wear OS by Google Help
How to setup an Android Wear watch with your phone
How to reboot or factory reset a Wear OS watch
3 surprising features that sold me on the Samsung Galaxy Watch 6 Classic
Samsung Galaxy Watch 4 Series Is Getting Wear OS 4-Based One UI 5 Watch Update: Details
How to pair your Samsung Galaxy Watch 4 or 5 to a new phone without resetting your watch and loosing your settings – CELEST
Google Pixel Watch 2: Features, design, price
Fossil Men's Gen 6 44mm Stainless Steel Touchscreen Smart Watch, Color: Smoke (Model: FTW4059V/FTW4059R) : Clothing, Shoes & Jewelry
How to set up your Wear OS 3 watch with a new phone - Wareable