GSM vs CDMA. Global System for Mobile Communications (GSM) and Code Division Multiple Access (CDMA) are the broad category names for the two “languages” phones use to transmit and receive data ...

Xiaomi Mi 9T specs compared to Xiaomi Mi 9T Pro. Detailed up-do-date specifications shown side by side.

Check out our guide for a closer look at the two popular wireless standards, CDMA and GSM. They're becoming a bit less relevant in the face of LTE, 4G, and 5G.