The Redmi Note 14 supports 2.4GHz and 5GHz Wi-Fi.
For your reference, here are more details about the Wi-Fi bands:
1. The 2.4GHz frequency band offers a larger coverage area than the 5GHz band, making it better suited for environments where a broad range is needed, such as larger homes or buildings with thick walls. It can penetrate obstacles like walls and floors more effectively, providing better overall signal coverage at greater distances. 2.4GHz has lower speeds compared to the 5GHz band, with typical Wi-Fi speeds reaching around 600Mbps or less, depending on the Wi-Fi standard;
2. 5GHz Wi-Fi provides faster data transfer rates compared to the 2.4GHz band. It is especially suitable for activities requiring high bandwidth, such as streaming HD/4K video, online gaming, and large file transfers.