What happens when you change phone numbers or iPhone country SIM cards?

Discussion in 'Apple Watch' started by patent10021, Sep 15, 2017.

  1. patent10021, Sep 15, 2017
    Last edited: Sep 15, 2017

    patent10021 macrumors 68030


    Apr 23, 2004
    So the Watch 3 uses the eSIM which uses the same phone number as the iPhone .What happens when you change numbers or use a different SIM from overseas?

    EDIT; Oh wow. I just saw the thread

    Well that sucks. I travel all the time swapping my Asian and north American SIM cards. A Lot of good an eSIM stuck on north American LTE does.
  2. dave006 Contributor


    Jul 3, 2008
    Just West of East
    Not exactly. The watch get's it's own phone number with the cell carrier. The magic of using the paired iPhone's number is handled on the carrier's back-end system.

    No roaming is supported at all. The magic only works on the carrier's network.

    The ability to use your watch on another carrier is currently unclear as to if the e-SIM will be locked to the original activation or if it can be used on another carrier.

  3. 0007776 Suspended


    Jul 11, 2006
    I think the esims are about like CDMA was before those carriers started using SIM cards for LTE. In theory there shouldn't be anything stopping you from switching carriers, but they likely won't allow it.
  4. patent10021 thread starter macrumors 68030


    Apr 23, 2004
    Well going by the article I linked to it won't be possible :(

Share This Page

3 September 15, 2017