Apple Watch® - Dual SIM with an eSIM - Add Multiple Cellular Plans
Only 1 Verizon mobile number can be activated on an Apple Watch at a time.
You can have 1 Verizon mobile number and 1 from another carrier activated; however, they can't be used simultaneously.
For instructions on switching between mobile numbers, refer to Switch Between Plans.
The steps below apply to the following models:
Apple Watch Series 4
Apple Watch Series 3
Ensure your watch is set up with one of the following iPhones running iOS 12.1 or later:
iPhone XS / XS Max
Before completing the steps below, ensure you have a cellular plan setup on both your physical SIM and eSIM.
For info on adding a cellular plan to your eSIM, refer to Add Cellular Plan.
From a Home screen, navigate: Watch > My Watch (lower-left).
From the 'Cellular Setup' screen, select the cellular plan you want to add (e.g., Primary, Secondary, (555) 555-5555, etc.).
Enter your username to sign in to the My Verizon app then tap Sign Me In.
If you haven't registered your mobile number for use on the My Verizon app, tap I Need to Register and follow the prompts.
To activate service, you must sign in as an Account Owner or Account Manager. For more on account roles, review this info.
Enter your password then tap Continue.
Once you sign in, the system performs checks to see if you are on a compatible price plan.
An error displays if your price plan is not eligilble for NumberShare; for more info on compatible plans, visit the NumberShare FAQs.
Enter your 911 address then tap Use this address.
If address isn't found in the system, choose whether to use suggested address or the address as entered.
If you get an error, ensure the State is abbreviated (e.g., 'New York' must be entered as 'NY').
From the 'Device Added' screen, tap OK to complete activation and open Watch app.
For additional info on using your Apple Watch with a Dual SIM capable iPhone, refer to this Apple support page.