Set up my young daughter's Apple Watch SE on a different carrier than my iPhone SE

“In order to use any cellular features on her Apple Watch SE, she would need to use the same carrier as your iPhone.”

Is this actually correct? I am trying to set up a watch I bought after reassurance this is possible (though so far it hasn’t been easy because I keep hearing it can’t be done?)

The second link says:

• An Apple Watch that you set up for a family member can use a different carrier than your iPhone uses.

Hello 3axap3axap,

We see you are asking about setting up an Apple Watch for your child and how to connect it with having Ting as your mobile carrier. There are a few things to keep in mind with a setup like this.

• In order to use any cellular features on her Apple Watch SE, she would need to use the same carrier as your iPhone.
• You will need to use a supported carrier with your iPhone (then her Apple Watch) for this setup.
• For any Apple Watch cellular plan specific questions, you'll want to reach out to the carrier.

Here are some related Apple Support articles for reference:

• Set up Apple Watch for a family member
• Set up cellular on Apple Watch
• Apple Watch - Carriers

Make sure that you have an eligible cellular service plan with a supported carrier. Your iPhone and Apple Watch must use the same carrier,* and you must be within your carrier's network when you set up cellular on your watch.

We hope this information helps.

Take care.

Hello,

I am in the same situation. I have ATT and my daughter's watch has a new Tmobile line. I would like to know if you found a right answer.

Thanks

Set up cellular on Apple Watch - Apple Support

If you look here, it says * An Apple Watch that you set up for a family member can use a different carrier than your iPhone uses.

very confusing.