5GHz WiFi band is better than 2.4GHz band when connecting your devices in close proximity. 5GHz has several WiFi channels which can be used without interference or overlapping. Moreover, 5GHz offers speedier WiFi at a short range as compared to 2.4GHz WiFi. However, 5GHz is easily blocked by walls and obstacles and has a shorter range as compared to 2.4GHz WiFi.