PSA 18/12/2016 - Data issues for members in the U.S.

Recent letter from AT&T
“We’re shutting down the 2G networks by the end of December 2016.”

What does this mean for you?
If you are using a SIM in any smartwatch that lacks 1900mhz 3G in the U.S. you will lose data service completely in large sections of the country. Some of these areas can be as large as Spain or France.

Devices affected;

All MTK6572 smartwatches running Android 4.4 or higher.

here is a link for 2G shutdown in some countries through wikipedia .
looks like in the usa that T-mobile will keep its 2G through 2020, see slashgear .