Can I watch Peacock on Roku Express Model 3903R?
The NBC Peacock app for Roku was written by NBC to be compatible with the following Roku models (Check your model number via Settings > System > About):
(Current as of February 20, 2021. Check the source listed below for updates.)
Roku 2 (4210X model only)
Roku 3 & 4 (model 4200X or later)
Roku Streaming Stick (model 3600X or later)
Roku Express/Express+ (model 3900X or later)
Roku Premiere/Premiere+ (model 3920X or later)
Roku Ultra/Ultra LT (model 4640X or later)
Roku TV and Smart Soundbar (model 5000X or later)
If that's a 3930 (I've not heard of a 3903) then, yes, your device is compatible.
Where are you located? Unless something has changed very recently, NBC has not made Peacock available outside the United States.
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