Streaming devices / Compare

onn. Android TV UHD Streaming Device vs Roku Express 4K+

A

Product A: onn.

Android TV UHD Streaming Device

47 of 97 known

Change onn. Android TV UHD Streaming Device

Compare the Roku Express 4K+ with

Search streaming devices

B

Product B: Roku

Express 4K+

52 of 97 known

Change Roku Express 4K+

Compare the onn. Android TV UHD Streaming Device with

Search streaming devices

All 97 fields

Every value links to where we found it.

Only differences

Aonn. Android TV UHD Streaming Device

BRoku Express 4K+

General

3 of 8 differ

Series

Not available

Express1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026The live roku.com page for this URL now shows another product, so the maker page was read from the Internet Archive capture of 2022-10-10. Product details, model 3941R.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

1000262408Retailer pageebay.com/p/2327209974Read 14 October 2026Catalog entry onn. 100026240 Android TV UHD Streaming Device, MPN 100026240. A second eBay entry for the Android TV UHD Streaming Box lists the same MPN. Walmart's own page for the box was not readable, so the link to the 2021 box rests on these entries and the Amazon listing.9Retailer pageamazon.com/dp/B0B75QMC7XRead 14 October 2026Marketplace listing, model number and mfr part number 100026240. The gallery shows a different, newer onn stick, so the text is used and the images are not.

3941R, 3941R21Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Model row 3941R. 3941R2 is the same Express 4K+ device according to Roku's answer on the Best Buy product Q&A page.16Retailer pagebestbuy.com/site/questions/roku-express-4k--streaming-player-hd-4k-hdr-with-roku-voice-remote-with-tv-controls-includes-premium-hdmi-cable-black/6449512/question/f1b4d262-9e14-37b8-b599-10e45fb527a2Read 11 October 2026Best Buy product Q&A, Roku Team answer: both the 3941R and 3941R2 are the same Roku Express 4K+ device. The Roku developer table lists 3941X and 3941X2 as the software model names.

GTIN / EAN

6811314133438Retailer pageebay.com/p/2327209974Read 14 October 2026UPC 0681131413343, valid check digit and Walmart's 681131 prefix. The Amazon marketplace listing shows 671227008065, which is not stored.

Not available

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

Not available

13 April 202112Press articletechcrunch.com/2021/04/13/roku-launches-a-rechargeable-hands-free-voice-remote-and-other-devices-rolls-out-roku-os-10Read 11 October 2026Article dated 2021-04-13 announces the Roku Express 4K+.

Status

Discontinued10Press articleaftvnews.comRead 14 October 2026January 31, 2023 article says the Onn 4K Box and the matching 1080p stick quietly disappeared from Walmart's site and shelves. A successor appeared in 2023. Amazon marketplace sellers still list new units. Walmart made no discontinuation statement.

Discontinued3Maker product pagedeveloper.roku.com/dev/docs/hardwareRead 11 October 2026Express 4K+ rows (3941X Marlin, 3941X2 Bailey) sit in the Updatable list. Roku says it no longer manufactures these products. Retailers may still hold stock.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Roku Streaming Stick Plus (2025)17Maker product pageroku.com/blog/players-25Read 23 October 2026Roku says the Roku Streaming Stick Plus replaces the Roku Express 4K+ at the same price.

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$29.881Reviewaftvnews.comRead 14 October 2026Hands-on gives $29.88. Tom's Guide gives $29.99. The Walmart listing price reported by What Hi-Fi and 9to5Google is $29.88.2Press articlewhathifi.com/news/walmart-could-undercut-roku-and-amazon-with-dollar30-4k-android-tv-streamerRead 14 October 2026Listing price $29.88 with 4K, Dolby Audio, Chromecast built-in and Google voice control.3Press article9to5google.com/2021/05/06/walmart-android-tv-streamer-listing-4kRead 14 October 2026Says the price went live at $29.88 soon after the May 6, 2021 article, though not consistently on the site.

$39.9912Press articletechcrunch.com/2021/04/13/roku-launches-a-rechargeable-hands-free-voice-remote-and-other-devices-rolls-out-roku-os-10Read 11 October 2026Express 4K+ at $39.99 in the US. Price excludes sales tax.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US9Retailer pageamazon.com/dp/B0B75QMC7XRead 14 October 2026Product description says it is designed for use in the United States and is not compatible outside the U.S.

US1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026The page is the Roku US site and the model row is the US retail model 3941R. The maker's launch material and the TechCrunch launch report give US availability.

ColoursiThe maker's own colour names

Black8Retailer pageebay.com/p/2327209974Read 14 October 2026Both eBay entries and the Amazon listing say black.9Retailer pageamazon.com/dp/B0B75QMC7XRead 14 October 2026

Black13Retailer pagequill.com/roku-express-4k-plus-black-3941r/cbs/55407410.htmlRead 11 October 2026Retailer listing for the Roku Express 4K Plus 3941R, colour Black.

Form factoriA stick plugs straight into the HDMI port. A dongle hangs from its own short fixed HDMI lead. A box stands on its own and connects by a separate cable.

Box1Reviewaftvnews.comRead 14 October 2026Reviewer calls it a streaming box, 2.75 inches square.

Box1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026The maker's product image and the quick start guide show a small separate player that connects to the TV with an HDMI cable. It is not a stick or dongle.

Video output

7 of 11 differ

Max output resolutioniHighest published video output resolution. Decoder capability and app streaming quality do not establish the output resolution.

3840 × 2160px9Retailer pageamazon.com/dp/B0B75QMC7XRead 14 October 2026Features table: Video Output Resolution 3840 x 2160 pixels. 4K Ultra HD resolution in the bullets.

3840 × 2160px1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Tech specs, TV Compatibility: 4K TVs up to 2160p at 60fps (3840 x 2160), needs an HDMI input that supports HDCP 2.2.

Max output refresh rateiHighest published output refresh rate. Resolution, HDR and connection conditions belong in the source note. This is not a television panel refresh rate.

Not available

60Hz1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Tech specs, TV Compatibility: up to 2160p at 60fps. HDR and chroma conditions are not stated.

Video output modesiPublished video output combinations. A row records support, not a proved maximum at every lower resolution. Keep HDR, chroma and bit depth conditions in source notes.

Aonn. Android TV UHD Streaming Device

Not available

BRoku Express 4K+

Width (px)	Height (px)	Refresh rate (Hz)
3840	2160	60

Source1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026One row from the 4K TVs line. HDR, bit depth and chroma are not stated for this row. The HD TVs line states up to 1080p without a rate, so no 1080p row is stored.

HDR formats

HDR101Reviewaftvnews.comRead 14 October 2026Supports HDR10, not Dolby Vision or HDR10+. Tom's Guide says it has no HDR. 9to5Google and androidpctv say HDR10 works.4Review9to5google.com/2021/06/21/walmart-android-tv-onn-4k-boxRead 14 October 2026Reviewer saw HDR10 trigger on a Vizio TV. Dolby Vision is not supported.6Spec databaseandroidtv-guide.com/streaming-gaming/onn-wallmart-android-tv-uhd-streaming-deviceRead 14 October 2026Entry lists HDR10.

HDR10, HDR10+, HLG1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Tech specs, 4K HDR TVs: supports HDR10/10+ and HLG. No Dolby Vision is listed.

Dolby Vision profilesiPublished supported Dolby Vision profiles and levels. Streaming support does not prove local-file support.

Not available

Not available

HDMI versioniPublished HDMI output revision. A revision does not establish every optional HDMI feature.

Not available

2.0b10Reviewtechradar.com/reviews/roku-express-4k-2021Read 11 October 2026Review of the Express 4K+ states 4K HDR streaming at up to 60 frames per second over HDMI 2.0b. No maker page states the HDMI revision.

HDCP version

Not available

2.21Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Tech specs footnote: requires a compatible TV with an HDMI input that supports HDCP 2.2. This is the stated protected-output chain version.

HDMI-CEC

Yes7Reviewandroidpctv.comRead 14 October 2026Review video settings say HDMI-CEC is available, see manual. The review does not test it.

Yes10Reviewtechradar.com/reviews/roku-express-4k-2021Read 11 October 2026Review of the Express 4K+: the remote's volume and power buttons control the TV over HDMI-CEC. Roku's support pages describe CEC settings for Roku players in general.

Automatic frame rate matchingiCan switch the video output rate to match content. App, operating system and playback restrictions belong in the source note.

No7Reviewandroidpctv.comRead 14 October 2026Review says automatic refresh rate is not available and there is no automatic refresh rate change.

Not available

Dynamic range matchingiCan switch the output dynamic range to match SDR or HDR content. App and firmware restrictions belong in the source note.

Not available

Not available

UpscalingiNamed video upscaling modes. Record source resolution and output restrictions in source notes.

Not available

720p to 1080p, 720p and 1080p to 4K1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026HD TVs: up to 1080p with up-scaling from 720p. 4K TVs: up to 2160p with upscaling from 720p and 1080p.

Video decoding

2 of 4 differ

Video codecsiExplicitly supported video decoding formats. Use names such as H.264, HEVC, AV1 and VP9. Chip capabilities alone do not prove device playback support.

H.264, HEVC, VP96Spec databaseandroidtv-guide.com/streaming-gaming/onn-wallmart-android-tv-uhd-streaming-deviceRead 14 October 2026Entry lists VP9, H.264 and H.265 (HEVC). No AV1. No profiles or limits.7Reviewandroidpctv.comRead 14 October 2026Review playback tests: H.264, H.265 and VP9 decode in hardware, no AV1.

H.264, HEVC8Owner's manualsupport.roku.com/article/share-media-over-usb-or-networkRead 11 October 2026Roku Media Player lists H.264/AVC and 4K H.265/HEVC. VP9 and AV1 are stated only for some Roku devices, so they are not stored. This player has no USB port, so the network media-server route applies.

Video decode limitsiPublished supported decoding limits. Profiles, levels and playback route matter. Output resolution and service support are separate.

Not available

Not available

Video containersiExplicitly supported local playback containers. App requirements belong in the source note.

Not available

MKV, MP4, MOV8Owner's manualsupport.roku.com/article/share-media-over-usb-or-networkRead 11 October 2026AVC and HEVC in MKV, MP4 and MOV. Network media-server route. App, firmware and file capabilities apply.

DRM systemsiNamed supported DRM systems and security levels. DRM certification does not prove a particular service streams at 4K.

Widevine L1, PlayReady6Spec databaseandroidtv-guide.com/streaming-gaming/onn-wallmart-android-tv-uhd-streaming-deviceRead 14 October 2026Entry lists Widevine L1. The androidpctv review adds PlayReady.7Reviewandroidpctv.comRead 14 October 2026Review line: Google Widevine L1 and PlayReady.

Widevine L1, PlayReady9Maker product pagedeveloper.roku.com/dev/docs/content-protectionRead 11 October 2026Widevine security-level table lists Marlin and Bailey, the Express 4K+ code names, under L1 Players. The page documents PlayReady for Roku OS and lists no exclusion for these code names. App DRM libraries and valid licenses are required.

Audio

4 of 8 differ

Audio formatsiPublished supported audio formats. Decoder, output and passthrough roles are qualified in source notes.

Dolby Audio5Reviewtomsguide.com/reviews/onn-android-tv-uhd-review-too-buggy-to-recommendRead 14 October 2026Review says the only popular standard it supports is Dolby Audio.

Digital stereo, DTS Digital Surround, Dolby-encoded audio, MP3, FLAC, PCM, ALAC, Vorbis, AAC1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Maker lines: digital stereo over HDMI, DTS Digital Surround pass through over HDMI, pass-through of Dolby-encoded audio over HDMI. MP3, FLAC, PCM, ALAC, Vorbis and AAC come from the Roku Media Player page and apply to the network media-server route.

Audio passthrough formatsiCompressed formats explicitly passed to external audio equipment without decoding. Dolby Atmos support alone does not establish TrueHD passthrough.

Not available

DTS Digital Surround, Dolby-encoded audio1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Literal maker lines. Dolby codecs stay generic because the page does not name Dolby Digital, Dolby Digital Plus or Atmos.

Dolby AtmosiExplicit device support for Dolby Atmos. Codec, service, app and output requirements belong in the source note.

No1Reviewaftvnews.comRead 14 October 2026Supports Dolby surround sound audio, not Dolby Atmos.5Reviewtomsguide.com/reviews/onn-android-tv-uhd-review-too-buggy-to-recommendRead 14 October 2026Review says no Dolby Atmos and no Dolby Vision. It also says no HDR, which AFTVnews, 9to5Google and androidpctv contradict.

No11Reviewtomsguide.com/reviews/roku-express-4k-plusRead 11 October 2026Review of the Express 4K Plus: no Dolby Vision or Atmos audio. TechRadar and SlashGear agree.

Audio channel configurationsiPublished output configurations, such as 2.0, 5.1 or 7.1. Keep PCM and compressed audio routes separate in source notes. Dolby Atmos support alone does not establish a channel configuration.

Not available

2.01Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Digital stereo over HDMI. No numeric multichannel layout is stated.

Max audio sample rateiHighest published audio output sample rate. Keep playback route and format in source notes.

Not available

Not available

Max audio bit depthiHighest published audio output bit depth. Keep playback route and format in source notes.

Not available

Not available

Bluetooth audio output

Not available

No7Owner's manualsupport.roku.com/en-us/article/how-to-use-bluetooth-headphone-modeRead 11 October 2026Roku Express is listed as a device without Headphone Mode. The Express 4K+ is not in the compatible list. The article names 'Roku Express' without a generation, so Express 4K+ is read as part of that family. A Bluetooth radio version is not published.

Bluetooth audio codecsiExplicitly supported codecs for audio sent to Bluetooth headphones or speakers. Bluetooth version alone is not proof.

Not available

Not available

Processor and memory

9 of 11 differ

System on chip

Amlogic S905Y21Reviewaftvnews.comRead 14 October 2026Update to the article confirms an Amlogic S905Y2.4Review9to5google.com/2021/06/21/walmart-android-tv-onn-4k-boxRead 14 October 2026Review says the box uses the Amlogic S905Y2 with 2 GB of RAM.

Not available

CPU

Quad-core ARM Cortex-A531Reviewaftvnews.comRead 14 October 2026Amlogic 1.8 GHz quad-core Cortex-A53 CPU and Mali-G31 GPU.6Spec databaseandroidtv-guide.com/streaming-gaming/onn-wallmart-android-tv-uhd-streaming-deviceRead 14 October 2026Entry for the onn. Android TV UHD Streaming Device, 2021, code names STI6140-D360, 8822CS and dopinder. Lists the Amlogic S905Y2 with a quad-core 1.8 GHz Cortex-A53.

ARM Cortex-A553Maker product pagedeveloper.roku.com/dev/docs/hardwareRead 11 October 2026Express 4K+ rows: ARM Cortex A55. The core count is not stated for this model.

CPU cores

41Reviewaftvnews.comRead 14 October 2026

Not available

Max CPU clockiHighest explicitly published processor clock for this device. Generic chipset limits are not device evidence.

1.8GHz1Reviewaftvnews.comRead 14 October 2026

Not available

GPU

ARM Mali-G31 MP21Reviewaftvnews.comRead 14 October 20266Spec databaseandroidtv-guide.com/streaming-gaming/onn-wallmart-android-tv-uhd-streaming-deviceRead 14 October 2026

Not available

RAMiKeep published GB values as stated. Convert a source explicitly labelled MB using 1000 MB per GB and preserve its original figure and unit in the note. Do not assume MB means MiB. Convert explicit MiB or GiB to decimal GB through their byte definitions, recording the conversion in the note. This normalization does not establish an exact physical byte count.

2GB1Reviewaftvnews.comRead 14 October 20264Review9to5google.com/2021/06/21/walmart-android-tv-onn-4k-boxRead 14 October 2026

1GB3Maker product pagedeveloper.roku.com/dev/docs/hardwareRead 11 October 2026Express 4K+ rows: 1 GB.

RAM type

DDR37Reviewandroidpctv.comRead 14 October 2026Review says 2 GB of RAM DDR3 and 8 GB eMMC. It also writes DDR without a number.

Not available

StorageiMarketed built-in storage capacity in decimal GB. Free space after the operating system is separate.

8GB1Reviewaftvnews.comRead 14 October 20264Review9to5google.com/2021/06/21/walmart-android-tv-onn-4k-boxRead 14 October 2026Review says 8 GB of onboard storage.

Not available

Storage type

eMMC7Reviewandroidpctv.comRead 14 October 2026

Not available

Expandable storageiCan use added removable or external storage to store installed apps or play media directly. Copying files through a USB data connection alone does not qualify. The source note states whether apps, media or both are supported and names the connection and limitations. Storage must be attached to the streaming device. Cloud and network streaming do not qualify.

Not available

Not available

Storage expansion methodsiPublished methods for adding app or media storage. USB support alone does not prove app installation on external storage.

Not available

Not available

Connectivity

3 of 7 differ

Wi-Fi

Wi-Fi 51Reviewaftvnews.comRead 14 October 2026

Wi-Fi 51Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Networking row: 802.11ac dual-band Wi-Fi (2.4 GHz / 5 GHz). 802.11ac is Wi-Fi 5.

Wi-Fi bands

2.4 GHz, 5 GHz1Reviewaftvnews.comRead 14 October 2026

2.4 GHz, 5 GHz1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Networking row: 2.4 GHz / 5 GHz.

Wi-Fi MIMOiWritten as 2x2 MIMO when the maker gives the stream count, or MIMO when it does not. 2T2R counts as 2x2. MU-MIMO support alone does not show more than one stream, so it is not stored. Band wording goes in the source note.

MIMO1Reviewaftvnews.comRead 14 October 2026

Not available

Built-in Ethernet speediRated speed of a built-in Ethernet port. An optional USB Ethernet adapter does not count.

Not available

Not available

Optional Ethernet adapter supportiExplicit support for an external Ethernet adapter. Required adapter and connection belong in the source note.

Yes1Reviewaftvnews.comRead 14 October 2026Reviewer verified an Ethernet adapter works through the micro USB OTG port.7Reviewandroidpctv.comRead 14 October 2026Review tested a USB Ethernet adapter on a USB 3.0 hub through the micro USB OTG port.

Yes1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Networking row: wired Ethernet requires a USB adaptor, sold separately. The setup article names the micro USB port. This is not a built-in Ethernet port.15Owner's manualsupport.roku.com/article/connect-to-a-wired-network-with-usbRead 11 October 2026Roku Express 4K+ (3941) is in the compatible device table. It needs a micro USB Ethernet adapter, 10/100 Mbps only, with an AX8877X or SMSC95XX chipset. The adapter is powered separately. This is not built-in Ethernet or storage expansion.

Bluetooth versioniPublished device Bluetooth version. The remote can use a different Bluetooth version.

4.21Reviewaftvnews.comRead 14 October 2026Article lists 802.11 a/b/g/n/ac MIMO Wi-Fi and Bluetooth 4.2.

Not available

PortsiPhysical device connectors, including a fixed HDMI plug and power-only USB. Excludes connectors on the remote and optional adapters. Count identical connectors in each row.

Aonn. Android TV UHD Streaming Device

Connector	Count	Version	Role
HDMI	1	Not available	Video and audio output
Micro USB	1	USB 2.0	Power input, also takes OTG adapters

Source1Reviewaftvnews.comRead 14 October 2026Only HDMI and micro USB for power. The micro USB port supports OTG adapters. The micro USB 2.0 version is from the androidpctv review.4Review9to5google.com/2021/06/21/walmart-android-tv-onn-4k-boxRead 14 October 2026Review says micro USB is used for power and there is no SD card slot.7Reviewandroidpctv.comRead 14 October 2026Review lists HDMI and a micro USB 2.0 OTG port. It says the OTG port takes external drives and peripherals. 9to5Google says there is no easy way to expand storage because micro USB is also the power input. Expandable storage is left out because the two disagree.

BRoku Express 4K+

Connector	Count	Version	Role
HDMI	1	2.0b	Video and audio output
Micro USB	1	Not available	Power input and compatible optional Ethernet adapter connection

Source1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Ports row lists HDMI, Micro USB and a Reset button. The reset button is not a connector and is not stored. The micro USB role comes from the setup article. HDMI version comes from TechRadar.

Smart home

1 of 3 differ

Thread border router

Not available

Not available

Matter controlleriCan commission and control Matter accessories. Acting as a Matter accessory alone does not qualify.

Not available

Not available

Smart home platforms

Not available

Apple HomeKit, Google Home, Amazon Alexa1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Compatibility rows: works with Apple AirPlay and HomeKit, Google Home and Alexa. This does not establish Matter or Thread.

Remote control

5 of 9 differ

Remote model

G10 (Google reference design)1Reviewaftvnews.comRead 14 October 2026Remote is Google's G10 reference design, made by TW Electronics. It is not a retail model number.

Roku Voice Remote with TV controls1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Remote control row: voice remote with TV power, volume, and mute buttons. The name 'Roku Voice Remote with TV controls' follows the Roku Express 4K+ retail title.

Remote connectioniEvery wireless link the included remote uses, to the device or to other equipment. An infrared transmitter that controls the TV counts as infrared.

Bluetooth, Infrared7Reviewandroidpctv.comRead 14 October 2026Review says the remote is Bluetooth plus IR with a microphone for Google Assistant.

Not available

Remote microphone

Yes7Reviewandroidpctv.comRead 14 October 2026

Yes1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Remote control row and the Voice button on the quick start guide diagram. Press-to-talk remote, not hands-free.

Remote voice assistantsiVoice assistants usable from the supplied remote. Region, language, app and firmware restrictions belong in the source note.

Google Assistant7Reviewandroidpctv.comRead 14 October 2026

Roku Voice1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Voice remote row and the Roku Voice search button. Roku Voice is the only assistant on the supplied remote.

Remote TV controliSupported TV controls, such as power, volume and input. Infrared and HDMI-CEC routes are qualified in source notes.

Power, Input, Volume1Reviewaftvnews.comRead 14 October 2026Power and input buttons at the top. Volume and mute below. The reviewer could not program the TV buttons for his two TVs.5Reviewtomsguide.com/reviews/onn-android-tv-uhd-review-too-buggy-to-recommendRead 14 October 2026Review lists TV volume, TV power and input change buttons.

Power, Volume, Mute1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Remote TV power and volume buttons work with most TVs. Mute is the third button named in the Remote control row.

Remote finder

Not available

Not available

Remote backlight

Not available

Not available

Remote poweriPublished batteries or rechargeable battery arrangement for the supplied remote.

2 AAA batteries (included)1Reviewaftvnews.comRead 14 October 2026A pair of AAA batteries is included.

2 AAA batteries2Owner's manualimage.roku.com/c3VwcG9ydC1B/Roku-Express-4K-Plus-QSG-US-Fall2022-pdf.pdfRead 11 October 2026What's included page: two pre-installed AAA batteries.

Remote charging port

Not available

Not available

Software

6 of 8 differ

Operating systemiPlatform name. The launch version is stored separately from later firmware support.

Android TV1Reviewaftvnews.comRead 14 October 20263Press article9to5google.com/2021/05/06/walmart-android-tv-streamer-listing-4kRead 14 October 2026Walmart's listing names Android TV, not Google TV. It also confirms 2.4 GHz and 5 GHz Wi-Fi and 4K output.

Roku OS3Maker product pagedeveloper.roku.com/dev/docs/hardwareRead 11 October 2026Hardware table is the Roku OS developer reference. The player runs Roku OS.

Operating system at launch

Android TV 101Reviewaftvnews.comRead 14 October 2026

Not available

App store

Google Play Store7Reviewandroidpctv.comRead 14 October 2026Review says Google Play for Android TV is installed.

Roku Streaming Store4Owner's manualsupport.roku.com/article/1500004688162Read 11 October 2026How to set up your Roku Express 4K+: add new apps from the Streaming Store. The same article lists the box contents and the micro USB port for a compatible Ethernet adapter.

Casting protocolsiPublished casting or screen mirroring protocols. AirPlay and Google Cast are distinct. App-only playback support does not prove system-wide mirroring.

Google Cast7Reviewandroidpctv.comRead 14 October 2026Review says Google Cast works, Miracast and AirPlay do not.

Apple AirPlay 26Owner's manualsupport.roku.com/article/screen-mirror-your-apple-device-with-airplayRead 11 October 2026Roku Express 4K+ (3941) is in the table of devices that support Apple HomeKit and streaming with AirPlay 2 on Roku OS 9.4 or higher.

Voice assistantsiVoice assistants supported by the device. A remote microphone and hands-free activation are separate features.

Google Assistant7Reviewandroidpctv.comRead 14 October 2026

Roku Voice, Amazon Alexa, Google Assistant, Apple Siri1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Compatibility rows: works with Alexa, Google Home, and Apple AirPlay and HomeKit. Roku Voice runs from the supplied remote. Alexa, Google Assistant and Siri work through other devices. They do not run on the supplied remote.6Owner's manualsupport.roku.com/article/screen-mirror-your-apple-device-with-airplayRead 11 October 2026Apple HomeKit lets you use Siri and the Home app on an Apple device to control the player. Supported on Roku Express 4K+ (3941).

Hands-free voice controliControl the streaming device by voice without pressing a button. This may use built-in microphones or a compatible linked smart speaker, phone or headset. The source note names the required device, connection, software and supported commands. A microphone on a press-to-talk remote alone does not qualify.

Not available

Not available

Mobile remote platforms

Not available

Android, iOS5Owner's manualsupport.roku.com/article/360063908513Read 11 October 2026Getting to know your Roku Express 4K or Express 4K+: the free Roku mobile app for iOS and Android controls the device by voice.

Accessibility features

Not available

Not available

Gaming

1 of 2 differ

Game servicesiPublished native or cloud gaming services. Service availability is time-sensitive. Record software and region requirements in source notes.

Not available

Not available

Game controller supportiExplicitly supported controllers or connection methods. Bluetooth alone does not establish game controller support.

Bluetooth gamepads, USB gamepads7Reviewandroidpctv.comRead 14 October 2026Review says it works with Bluetooth or USB gamepads. The review does not name controllers.

Not available

Power

2 of 5 differ

Power supply

USB1Reviewaftvnews.comRead 14 October 2026Includes a 5V 1A micro USB power brick.

USB2Owner's manualimage.roku.com/c3VwcG9ydC1B/Roku-Express-4K-Plus-QSG-US-Fall2022-pdf.pdfRead 11 October 2026Step 2 powers the player through the included USB power cable and power adaptor, or from a TV USB port. Power input is micro USB.

Rated power inputiDevice input rating, as published. An external adapter output rating is separate.

Not available

5 V, 1 A1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Power input row: 5V - 1A.

Included adapter outputiRated output of the included power adapter. This is not device power consumption.

5W1Reviewaftvnews.comRead 14 October 20265 V times 1 A is 5 W. The androidpctv review also says 5 V 1 A (5 W).

Not available

Max power consumption (claimed)iMaker-published maximum device power consumption. Adapter rating is not proof.

Not available

Not available

Standby power (claimed)iMaker-published device standby consumption under the source conditions.

Not available

Not available

Measured

None of 4 known

Video playback power (measured)iReviewer-measured device consumption. Video format, app, resolution, power measurement point and equipment belong in source notes.

Not available

Not available

Idle power (measured)iReviewer-measured device consumption when idle. Firmware, measurement point and conditions belong in source notes.

Not available

Not available

Standby power (measured)iReviewer-measured device consumption in standby. Network state, firmware and measurement point belong in source notes.

Not available

Not available

Boot time (measured)iReviewer-measured time from power-on to usable home screen. Cold boot and standby wake are different. Record timing method and firmware.

Not available

Not available

Dimensions and weight

2 of 4 differ

DimensionsiDevice body without remote, cables or adapter. Width is left-to-right in normal use, height is bottom-to-top and depth is front-to-back. For a stick, include the fixed plug only when the source does. A stick's length from the plug to its end is depth and its thickness is height. A puck that lies flat has its thickness as height.

Width70Depth70mm(2.8 × 2.8 in)1Reviewaftvnews.comRead 14 October 2026Article says 2.75 inches square. Androidtv-guide and androidpctv say 70 x 70 mm. Thickness is left out because they give 13 mm and 12 mm. Weight is left out because androidtv-guide says 51 g and androidpctv says 55 g.

Width86.3Height20.8Depth39.3mm(3.4 × 0.8 × 1.5 in)1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Size row: height 0.8 in (20.8 mm), width 3.4 in (86.3 mm), depth 1.5 in (39.3 mm). Player only.

WeightiDevice only, without remote, cable or power adapter. Included fixed cable or plug conditions belong in source notes.

Not available

44.6g(1.6 oz)1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Weight row: 1.6 ounces (44.6 g). Player only, without remote, cable or adapter.

Remote dimensionsiSupplied remote body. Height is its length along the buttons, width is across the buttons and depth is front-to-back.

Not available

Not available

Remote weightiSupplied remote weight. State whether replaceable batteries are included.

Not available

Not available

Certifications

1 of 1 differ

FCC ID

Not available

Not available

Other certifications

Not available

ENERGY STAR1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Page text states this Roku player is ENERGY STAR certified. No certificate number or listing was checked.

In the box

1 of 2 differ

In the box

Streaming device, Voice remote, 2 AAA batteries, HDMI cable, Power adapter (5 V, 1 A, micro USB), Manual1Reviewaftvnews.comRead 14 October 2026Article lists the G10 remote, a pair of AAA batteries, a 5V 1A micro USB power brick, an HDMI cable and the box. The androidpctv review adds a manual.

Roku Express 4K+ streaming player, Voice remote with TV power, volume, and mute buttons, 2 pre-installed AAA batteries, USB power cable, Power adaptor, Premium High Speed HDMI cable, Removable adhesive strip for mounting (optional)1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026What's in the box list.

HDMI cable includediA separate HDMI cable supplied in the box. A fixed HDMI plug or captive lead does not count. A short HDMI extender supplied with a stick counts, and the source note says it is an extender.

Yes1Reviewaftvnews.comRead 14 October 2026

Yes2Owner's manualimage.roku.com/c3VwcG9ydC1B/Roku-Express-4K-Plus-QSG-US-Fall2022-pdf.pdfRead 11 October 2026What's included page shows a separate Premium High Speed HDMI cable. Step 1 connects the player to the TV with the included cable.

Links

Not compared

Product page

Not available

web.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plus1Maker product pageweb.archive.org/web/20221010180237/https://www.roku.com/products/roku-express-4k-plusRead 11 October 2026Internet Archive capture of the maker's product page, because the live URL no longer shows this player.

Spec sheet

Not available

Not available

Manual

Not available

image.roku.com/c3VwcG9ydC1B/Roku-Express-4K-Plus-QSG-US-Fall2022-pdf.pdf2Owner's manualimage.roku.com/c3VwcG9ydC1B/Roku-Express-4K-Plus-QSG-US-Fall2022-pdf.pdfRead 11 October 2026US quick start guide for model 3941, linked from the maker's setup article.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

1 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

Not available

1year14Maker spec sheet (PDF)images.thdstatic.com/catalog/pdfImages/5b/5b125123-9613-4138-9e94-2095d9c4cb30.pdfRead 11 October 2026Roku Limited Warranty page 1: one year for Roku streaming players and included remotes bought by an end user in the United States.

Both are also in the API. Back to all streaming devices.