The POCO X7 supports High-order modulation. High-order modulation on smartphones refers to the use of advanced modulation schemes in mobile communication to transmit data more efficiently, allowing for higher data rates over wireless networks. Modulation is the process of converting digital data into a signal that can be transmitted over a radio wave. Higher-order modulation techniques increase the amount of data that can be carried per unit of bandwidth, improving the overall efficiency and speed of wireless communication.