Apple Watch Series 3 LTE Carriers

[ANTAWNM26]

1. Will any carrier lte version work on each carriers network?
2. If someone is selling a apple lte version is it possible for it to be locked down due to EIP?

 

[xraydoc]

1. Will any carrier lte version work on each carriers network?
2. If someone is selling a apple lte version is it possible for it to be locked down due to EIP?

In the US, yes.

Apple Watches are not/cannot be locked to carriers.