What is GSMT?

GSMT is one of RedPocket Mobile’s wireless network options. GSMT plans work with GSM-unlocked and T-Mobile-compatible devices—meaning the phone uses a SIM card and is not restricted to a single carrier.

GSM Devices Only

RedPocket services work exclusively with GSM-compatible phones. Some devices—such as certain older Verizon models—are CDMA-only, while others support GSM. Verizon began offering GSM-compatible phones around 2010, so compatibility depends on the specific model.

Sprint phones are not supported. Even if unlocked, Sprint devices do not use SIM cards, and the Sprint network has been fully decommissioned.

How to Check If Your Phone Is GSM

• Look for a SIM card slot, usually located on the side, top, bottom, or under the battery.

  Note: iPhone models iPhone 14 and newer are eSIM-only. While these devices are GSM-compatible, they do not have a physical SIM card slot.

• Check your phone’s user manual or search online for your specific model’s SIM or eSIM compatibility.

• If you’re still unsure, contact support for help confirming compatibility

Choosing a GSMT Plan

If you’re interested in a GSMT calling plan, visit redpocket.com/plans/plans-gsmt. Here's some important information to keep in mind!

• Plans must be activated within 90 days of purchase

• You can upgrade, downgrade, or cancel anytime

• All new line activations are backed by a 7-day return policy

Visit redpocket.com/plans/plans-gsmt to select the GSMT plan that’s right for you.