
Expert Score8.7
1 / 2
Roku•product
Roku Streaming Stick 4K (2021)
Plug-direct 4K Dolby Vision streaming stick with long-range Wi-Fi, Dolby Atmos, and TV controls for $49.99
Expert Rating
8.7/10
Best Pricing & Availability
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The Analysis
Quick Specs
Ram1GB LPDDR4
WifiWi-Fi 5 (802.11ac), dual-band MIMO with long-range receiver
Price$49
Storage8GB
Expert Review Summary
The Roku Streaming Stick 4K launched in October 2021 as Roku's mid-range 4K streaming stick, combining the plug-direct HDMI dongle form factor with a long-range dual-band Wi-Fi antenna specifically designed to reduce buffering when the router is far from the TV. At $49.99 it became one of the best-selling streaming sticks on Amazon throughout 2022 and 2023, earning nearly 100,000 Amazon ratings and a 4.7-star average.
Video specs match the pricier Roku Ultra for everyday streaming: Dolby Vision, HDR10+, HDR10, and HLG at up to 4K 60fps over HDMI 2.0b, plus Dolby Atmos audio passthrough to compatible soundbars. A quad-core 1.8GHz ARM processor with 1GB of RAM delivers a snappy Roku OS interface. The stick draws power directly from the TV's USB port in most installations, which removes the need for a wall adapter. The included Roku Voice Remote includes dedicated TV power and volume buttons for one-remote control.
The Roku Streaming Stick 4K is the best fit for viewers who have experienced 4K buffering with earlier streaming sticks and want a Roku experience without running an Ethernet cable. The dongle form also makes it easy to move between TVs. This model was succeeded in April 2025 by the Roku Streaming Stick Plus at the same $39.99 price with a refreshed design, but the 4K remains available through secondary retailers for those who prefer its remote style or want to reduce spending further.
Technical Specifications
Ram1GB LPDDR4
WifiWi-Fi 5 (802.11ac), dual-band MIMO with long-range receiver
Price$49
Storage8GB
Air Play2 No
BluetoothBluetooth 5.0
ProcessorQuad-core ARM Cortex-A55, 4x 1.8GHz
Thread Hub No
App Library5000
Dolby Atmos Yes
Hdr SupportDolby Vision, HDR10+, HDR10, HLG
Home Kit Hub No
I Cloud Sync No
Resolution3840x2160
Dolby Vision Yes
Ease Of SetupPlug stick into HDMI port, power from TV USB, and follow the four-step Roku on-screen guide
Hdmi Version2.0b
Ethernet Port No
Voice Control Yes
Matter Support No
App Store AccessRoku Channel Store
Voice AssistantRoku Search
Siri Integration No
Alexa Integration No
Prime Video Access Yes
Smart Home Control No
Streaming QualityOutstanding 4K Dolby Vision with long-range Wi-Fi reducing buffering and enabling stable 4K HDR in large rooms
Frame Rate Matching Yes
Ecosystem CompatibilityAmazon Alexa, Google Assistant