The smartphone is the first flagship to launch with Cricket's new trio of Phone Payment Plans.
AT&T's GigaPower broadband service claims to bring speeds of up to 1Gbps for $110 a month.
The Galaxy S6 is coming out in a few weeks. Even so, the carrier will sell the smaller version of Samsung's 2014 flagship phone for $100 on contract starting this week.
The carrier plans to launch a health platform to help monitor and break down data from fitness trackers. Separately, AT&T will also power Philips GoSafe's medical alert service.
Months after its unveiling, the squat smartphone is finally coming to a US carrier.
The metal-banded smartphone is now available exclusively through AT&T, both online and at the carrier's retail stores. It costs $200 under contract.
AT&T's Randall Stephenson plans to lean on DirecTV relationships to strike new media deals.
The Modio Case provides battery capacity, the potential for more storage and a 4G LTE connection.
The carrier previously had a plan to extend its 4G LTE network to the skies in late 2015.
The new Nexus phone, rumored to have an imminent debut, can be seen on an AT&T page among items recently viewed.