You’ll have one plan, but every line on your account gets a 4GB data allowance.
Enjoy these features with your 4GBSM plan:1
Good to know: If a line uses more than 4GB of data in a month, we’ll automatically add overage data in increments of 2GB and charge you $10 for each 2GB added to the line. Plus, the 4GB plan doesn’t include 5G access or Rollover Data®. Any unused data, including overage data, is forfeited at the end of each billing period.
The AT&T 4GB plan now includes international long-distance calling to Canada and Mexico from wearable devices that support cellular service at no additional charge.
For Series 5 and higher Apple® wearables (WatchOS 9.1 or higher required ), this rate plan now also includes at no additional charge:
FYI: For travel with an Apple wearable outside of the U.S., Canada, and Mexico, continue to use your smartphone cellular connection or Wi-Fi.