This is SofaBaton, very glad to help you.
Since the Roku Stick is wirelessly controlled, our U1 does not support it,
but the U1 supports most infrared and Bluetooth devices.
I took a video for you, hope it can help you better know U1.
https://www.youtube.com/watch?v=CyWMCY9Gc1Q
1) 02:45-05:15
How to Add IR Devices-Easiest Way (No original remote needed)
(Start 02:45-04:25) Example1: How to add Roku Devices (Start 02:45-04:25)
(Start 04:33-05:15) Example2:How to add Samsung Devices
2) 05:36-06:57 How to add Bluetooth Devices---Example1: How to add Firestick
We launch a new remote control that supports Roku Stick.
I hope you can understand that U1 may not perfect. We need to put more effects on some functions, such as reassign 、add Bluetooth devices.
In order to achieve a balance between quality and function. U1 supports infrared & Bluetooth devices ( Add up to 15 devices ).
X1 support PS4、PS5、IR Signal Boost、point anywhere remote、both connect 2 Bluetooth at once
Now X1 has been released, if you are interested, you can click the link to learn about it
https://www.amazon.com/s?k=universal+remote+control&ref=nb_sb_noss&field-asin=B09SKWPJQB
Have a nice day :)