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Roku Streaming Stick 4K

RokuStreaming device

Streaming Stick 4K

Released October 2021.3Press articleflatpanelshd.com/news.phpRead 7 October 2026September 21 report says US and UK availability from mid-October. Best supported approximate month for original UK 3820EU. UK Cord Busters hands-on dated November 22 confirms original retail hardware existed. Last checked 16 October 2026.

Max output resolution
3840 × 2160
HDR formats
HDR10, HDR10+, Dolby Vision, HLG
Operating system
Roku OS
Storage
Not available

54 of 97 fields known.

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At a glance

Ports

  • HDMI 2.0
  • Micro USB

All specs

SourceCalculated

General

Series
Not available
Model numbers
3820EU1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 1 UK Set-up Information SKU/Model 3820EU. Original standard Voice Remote package. 3820EU2 and US R2 revisions are not retained variants.
GTIN / EAN
8296100048771Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 1 UPC row. Exact UK 3820EU package UPC. Other regions have separate identifiers.
Announced
20 September 20212Press releaseroku.com/blog/introducing-roku-streaming-stick-4kRead 7 October 2026Maker launch blog is dated September 20, 2021. Original newsroom URL now returns a shell and was replaced with this readable maker announcement.
Status
Discontinued4Maker product pagedeveloper.roku.com/dev/docs/hardwareRead 7 October 2026Current Updatable Roku models table says these devices are no longer manufactured but can run the latest Roku OS. Exact original Madison 3820X row is included. This discontinued status applies to represented original 2021 hardware, not later Logan/R2 or EU2 revision under the same marketed name.
Predecessor
Not available
Successor
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
GB1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 1 UK Set-up Information identifies the selected reference package. Other regions not declared as verified variant rows.
Colours
Black5Reviewpcwelt.de/article/1206133/test-roku-streaming-stick-4k-3820eu.htmlRead 7 October 2026Exact 3820EU Design & Verarbeitung describes matt-black finish.
Form factor
Stick1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 1 description and page 2 Designed to stream, not be seen identify the stick that plugs directly into the TV.

Video output

Max output resolution
3840 × 2160px1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 Video Resolution explicitly gives up to 4K/60 Ultra HD (3840 x 2160) on a 4K UHD TV. This is output, not UI resolution.
Max output refresh rate
60Hz1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 Video Resolution and Output Type explicitly state 4K/60 Ultra HD output with HDMI 2.0 and HDCP 2.2. Compatible TV required.
Video output modes
Width (px)Height (px)Refresh rate (Hz)
3840216060
Source1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 explicit 4K/60 output. No inferred lower-resolution maximum, colour depth or chroma. HDR combination details are not imported from later R2 page.
HDR formats
HDR10, HDR10+, Dolby Vision, HLG3Press articleflatpanelshd.com/news.phpRead 7 October 2026Original 2021 exact-generation specification block names Dolby Vision, HDR10/10+ and HLG. Maker sheet independently names Dolby Vision/HDR10+.
Dolby Vision profiles
Not available
HDMI version
2.01Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 Output Type explicitly HDMI 2.0. Other generic/US sources say 2.0b. Exact UK original sheet is retained without adding a revision suffix.
HDCP version
2.21Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 output row: HDCP 2.2 for 4K/60, Dolby Vision and HDR. Lower output modes may use HDCP 1.4.
HDMI-CEC
Yes3Press articleflatpanelshd.com/news.phpRead 7 October 2026Original article explicitly identifies HDMI CEC support for TV and device controls. It does not prove every optional CEC command.
Automatic frame rate matching
Not available
Dynamic range matching
Not available
Upscaling
720p to 1080p, 1080p to 4K/601Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 Video Up-conversion names these source and output combinations. No AI upscaling claim.

Video decoding

Video codecs
H.264, HEVC, VP98Owner's manualsupport.roku.com/article/share-media-over-usb-or-networkRead 7 October 2026Roku Media Player supports AVC generally and HEVC/VP9 on Roku 4K devices. Network media-server playback applies because stick lacks a media USB port. AV1 is only on some devices and is not imported.
Video decode limits
Not available
Video containers
MKV, MP4, MOV, WebM8Owner's manualsupport.roku.com/article/share-media-over-usb-or-networkRead 7 October 2026Current maker Roku Media Player manual supports network media-server playback on Roku streaming devices. AVC/HEVC MKV, MP4 and MOV, VP9 MKV/WebM. Original UK leaflet says Media Playback File Format none without specifying route or app. Current manual governs this app-based network route. No USB media capability is claimed.
DRM systems
Widevine L1, PlayReady9Maker product pagedeveloper.roku.com/dev/docs/content-protectionRead 7 October 2026Widevine table explicitly places Madison in L1 players. Original hardware table identifies 3820X as Madison. PlayReady streaming table covers Roku devices. No unpublished PlayReady security level inferred. App licenses and firmware requirements apply.

Audio

Audio formats
Digital stereo, DTS Digital Surround, Dolby Audio, Dolby Atmos1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 Audio Features. Digital stereo over HDMI. DTS, Dolby Audio and Atmos are HDMI passthrough, not device Dolby decoding or TrueHD support.
Audio passthrough formats
DTS Digital Surround, Dolby Audio, Dolby Atmos1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 Audio Features explicitly names pass through over HDMI for DTS and Dolby Audio/Atmos. A compatible decoder is required. TrueHD and lossless Dolby are not implied.
Dolby Atmos
Yes1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 Audio Features explicitly Dolby ATMOS pass through over HDMI. Contradictory early reviews say no Atmos. Exact maker sheet takes precedence and only passthrough support is claimed.
Audio channel configurations
2.01Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 digital stereo over HDMI. This row is stereo output only and does not set a surround passthrough channel maximum.
Max audio sample rate
Not available
Max audio bit depth
Not available
Bluetooth audio output
No7Owner's manualsupport.roku.com/en-us/article/how-to-use-bluetooth-headphone-modeRead 7 October 2026Which devices are compatible lists Streaming Stick 4K and 4K+ among devices that do not support direct Bluetooth Headphone Mode. Mobile app headphone output uses the phone radio and is separate.
Bluetooth audio codecs
Not available

Processor and memory

System on chip
Not available
CPU
ARM Cortex-A554Maker product pagedeveloper.roku.com/dev/docs/hardwareRead 7 October 2026Original 2021 Roku Streaming Stick 4K Madison row, model 3820X. Later 2022 Logan 3820X2 row is excluded. No clock inferred.
CPU cores
42Press releaseroku.com/blog/introducing-roku-streaming-stick-4kRead 7 October 2026Exact original launch Smooth streaming bullet explicitly states an all-new quad-core processor.
Max CPU clock
Not available
GPU
Not available
RAM
1GB4Maker product pagedeveloper.roku.com/dev/docs/hardwareRead 7 October 2026Same original 2021 Madison 3820X hardware table explicitly 1 GB. EU 3820 is the selected original marketed model, not the EU2 package.
RAM type
Not available
Storage
Not available
Storage type
Not available
Expandable storage
Not available
Storage expansion methods
Not available

Connectivity

Wi-Fi
Wi-Fi 51Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 Wireless Technology: 802.11ac MIMO dual-band Wi-Fi.
Wi-Fi bands
2.4 GHz, 5 GHz3Press articleflatpanelshd.com/news.phpRead 7 October 2026Original 2021 specification block calls dual-band. Explicit band frequencies independently stated in the original PCWorld review, not inferred from Wi-Fi 5.14Reviewpcworld.com/article/579766/roku-streaming-stick-4k-review.htmlRead 7 October 2026Little niceties everywhere section explicitly describes choosing the best connection on networks with separate 2.4 GHz and 5 GHz bands. Original 2021 Streaming Stick 4K review, corroborating original UK maker dual-band claim.
Wi-Fi MIMO
MIMO1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 wireless row says MIMO without a published antenna-stream count. No 2x2 inferred.
Built-in Ethernet speed
Not available
Optional Ethernet adapter support
Not available
Bluetooth version
Not available
Ports
ConnectorCountVersionRole
HDMI12.0Fixed plug for video and audio output
Micro USB1Not availablePower and supplied long-range Wi-Fi receiver
Source5Reviewpcwelt.de/article/1206133/test-roku-streaming-stick-4k-3820eu.htmlRead 7 October 2026Exact 3820EU Design & Verarbeitung gives direct HDMI plug and Micro-USB power cable port. Version 2.0 follows exact original maker sheet. No USB data speed or peripheral expansion inferred.

Smart home

Thread border router
Not available
Matter controller
Not available
Smart home platforms
Apple HomeKit, Google Assistant, Amazon Alexa1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 1 supports these ecosystems. Page 2 works with compatible external voice-assistant devices. HomeKit is accessory control, not a home hub or Thread border router.

Remote control

Remote model
Roku Voice Remote with TV controls1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 1 and page 3 Accessories Included. Original non-Pro supplied voice remote. No later Voice Remote Pro features inherited.
Remote connection
Not available
Remote microphone
Yes1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 point-anywhere voice remote. Page 1 and 2 explicitly say use your voice to search and control. This is the voice-input microphone, not hands-free operation.
Remote voice assistants
Roku Voice1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 2 use your voice to search and control. Maker launch release calls the supplied remote feature Roku Voice. Alexa, Google Assistant and Siri require separate compatible devices.
Remote TV control
Power, Volume, Mute1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 Accessories Included identifies TV power, mute and volume buttons. Works with compatible TV and depends on TV control setup.
Remote finder
No12Reviewarstechnica.com/gadgets/2022/02/4k-streamer-showdown-chromecast-vs-amazon-fire-tv-stick-vs-roku-streaming-stickRead 7 October 2026Original standard Streaming Stick 4K supplied basic remote explicitly lacks a remote-finding siren. This is distinct from the optional Voice Remote Pro and 4K+ package.
Remote backlight
Not available
Remote power
2 AAA alkaline batteries, 1.5 V each1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 Accessories Included and Battery type rows. Replaceable original supplied batteries, not rechargeable Pro hardware.
Remote charging port
Not available

Software

Operating system
Roku OS5Reviewpcwelt.de/article/1206133/test-roku-streaming-stick-4k-3820eu.htmlRead 7 October 2026Exact 3820EU software section states Roku OS 10.5. Platform and launch version are stored separately.
Operating system at launch
10.56Reviewtomsguide.com/reviews/roku-streaming-stick-4kRead 7 October 2026Interface section explicitly states Streaming Stick 4K came out alongside Roku OS 10.5. Current article later discusses Roku OS 12 separately.
App store
Roku Streaming Store8Owner's manualsupport.roku.com/article/share-media-over-usb-or-networkRead 7 October 2026Article opening says Roku Media Player is available through Roku Store. The other Roku player pages call the same storefront Streaming Store, the name stored here. Supports the device app ecosystem, not sideloading or regional service availability.
Casting protocols
Apple AirPlay 21Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 1 explicitly Apple Airplay 2 and page 2 Share it with Apple AirPlay. Requires compatible Apple device and current compatible software.
Voice assistants
Roku Voice, Siri, Amazon Alexa, Google Assistant1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 1 and 2 ecosystem support. Roku Voice is supplied remote push-to-talk. Siri/HomeKit, Alexa and Google Assistant require compatible external devices, not a built-in far-field microphone.
Hands-free voice control
Yes1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 2 Works with popular voice assistants explicitly supports spoken search/play/control through compatible Alexa, Google Assistant or Siri-enabled external devices. The supplied standard remote remains push-to-talk.13Owner's manualsupport.roku.com/article/article/control-your-streaming-devices-with-alexaRead 7 October 2026External Alexa route, not a hands-free microphone on the supplied standard remote. Official support explicitly includes the UK, requires Roku OS 9.1 or higher, a linked Roku skill/account and compatible Alexa-enabled device such as Echo, and gives spoken search and app-launch commands. Netflix commands and some other controls are excluded. Exact original UK sheet and maker launch independently state compatible external assistant voice control.
Mobile remote platforms
iOS, Android1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 1 free Roku mobile app iOS and Android offers an extra remote. App-based headphone output is distinct from direct device Bluetooth.
Accessibility features
Not available

Gaming

We could not find any of these 2 fields. Show them
Game services
Not available
Game controller support
Not available

Power

Power supply
USB10Owner's manualsupport.roku.com/article/set-up-your-streaming-stick-4kRead 7 October 2026Setup Step 2: supplied USB cable powers device from included wall adapter or compatible TV USB. Original supplied long-range Wi-Fi receiver cable is required.
Rated power input
Not available
Included adapter output
Not available
Max power consumption (claimed)
Not available
Standby power (claimed)
Not available

Measured

We could not find any of these 4 fields. Show them
Video playback power (measured)
Not available
Idle power (measured)
Not available
Standby power (measured)
Not available
Boot time (measured)
Not available

Dimensions and weight

Front and side, drawn to scale.

Dimensions
Width21.1Height11.5Depth95.4mm(0.8 × 0.5 × 3.8 in)1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 4 player Width 21.1, Length 95.4, Height 11.5 mm. Width is across the stick, depth follows its HDMI-plug length. The maker does not separately qualify the fixed plug endpoints. Later/US sources give 94.5 mm length.
Weight
22g(0.8 oz)1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 4 Out of box unit (player) Weight 22 gr. Device only. US/generic sources give 26 g. Exact UK maker sheet takes precedence for this retained reference SKU.
Remote dimensions
Width42Height142Depth21mm(1.7 × 5.6 × 0.8 in)1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 4 remote Width 42, Length 142, Height 21 mm. Mapped to across buttons, along buttons and front-to-back thickness. Supplied standard remote.
Remote weight
Not available

Certifications

We could not find any of these 2 fields. Show them
FCC ID
Not available
Other certifications
Not available

In the box

In the box
Roku Streaming Stick 4K, Roku Voice Remote with TV controls, 2 AAA batteries, USB power cable with long-range Wi-Fi receiver, Power adapter11Reviewcordbusters.co.uk/roku-streaming-stick-4k-uk-reviewRead 7 October 2026Original UK Setting Up section identifies stick, remote with batteries and power cable/adapters. Maker original sheet additionally confirms voice remote, 2 AAA batteries and receiver USB cable. Ambiguous extender wording in sheet is omitted and exact UK review says HDMI extension is not supplied.
HDMI cable included
No5Reviewpcwelt.de/article/1206133/test-roku-streaming-stick-4k-3820eu.htmlRead 7 October 2026Exact 3820EU review says no HDMI extension cable is supplied. Original fixed HDMI plug does not count as separate cable. Maker support requires ordering an extender separately.

Warranty

Manufacturer warranty (source market)
2years1Maker spec sheet (PDF)avxperten.no/files/79407/leaflet-86529-20135904.pdfRead 7 October 2026Page 3 Warranty Description: 2 Year Limited Manufacturer warranty for the UK reference package. No US warranty inherited.

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Sources

We read 14 sources for this streaming device. The numbers match the markers in the sheet.

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