We have gathered the best Cyber Monday Roku deals for a very good reason: Roku rules the streaming world. As 49% of the U.S. streaming device market reportedly consists of Roku sticks, boxes, TVs, and other devices, these deals will help you join the party. [The Roku Streaming Stick Plus 4K is $29, $20 off at Amazon. Best Buy is matching this offer. The high-end Roku Ultra 2020 (just released) is also on sale, as is the new Roku Streambar (a room-filling soundbar with built-in Roku streaming).

These are Cyber Monday deals for those who need to upgrade their streaming situation to 4K or buy a new TV without having to buy a new streaming device.