Help & troubleshooting for network issues, including connecting your device to your home Wi-Fi network, connecting to public networks, troubleshooting wireless issues & ethernet connections, and optimizing streaming performance.
5g (5th generation) refers to a cellular phone protocol. I assume you're asking if Roku can be used with the 5 GHz wifi band.
The two Streaming Stick products and the Ultra are the current Roku products with dual band wifi capability and can use both 2.4 GHz and 5 GHz bands. The lower end products, Express and Premier, have single band wifi receivers that support only the 2.4 GHz band.
Roku Community Streaming Expert I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well. If this post solves your problem please help others find this answer by clicking "Accept as Solution.".
Streaming Stick 4K+ 3821 | Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X