Roku responds to Amazon with upgraded Roku Streaming Stick 4K and Streaming Stick 4K+ models. New Roku streaming sticks are available in time for the holidays. Not to be outdone by rival Amazon, Roku added two new streaming sticks to its lineup of portable media streamers this week. The Roku Streaming Stick 4K and 4K+ feature Dolby Vision and HDR10+, as well as a new quad-core processor that is up to 30% faster than its predecessor. Meanwhile, a redesigned long-range wireless receiver is said to increase Wi-Fi speeds by up to 2x. Overall, content should load faster and navigation should feel snappier than ever.

Roku responds to Amazon with upgraded Roku Streaming Stick 4K and Streaming Stick 4K+ models. New Roku streaming sticks are available in time for the...