Is 5 GHz better than 2.4 GHz WiFi?

The answer

Neither band is better in every case. 5 GHz is usually faster and less crowded, but its signal weakens more quickly with distance and through walls. 2.4 GHz reaches farther and passes through walls more easily, but it is usually slower and more crowded, and appliances such as microwave ovens can interfere with it. Use 5 GHz in the same room or one room away from the router, and 2.4 GHz when you are far away or behind several walls. If a device struggles, try the other band.