Streaming devices / Compare

onn. 4K Pro Streaming Device (2024) vs Roku Express 4K+

A

Product A: onn.

4K Pro Streaming Device (2024)

44 of 97 known

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B

Product B: Roku

Express 4K+

52 of 97 known

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Only differences

Aonn. 4K Pro Streaming Device (2024)

BRoku Express 4K+

General

6 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.

1001357691Maker product pagewalmart.ca/en/ip/Onn-4K-Pro-Streaming-Device-with-Google-TV-Hands-Free-Voice-Control-Dolby-Atmos-Dolby-Vision/3ZOTV6K4P8B5Read 13 October 2026Product data on the listing gives model 100135769. The maker Quick Start Guide cover carries the same number 100135769_EN_231222. The FCC product code ORPK4VTG is stored in the FCC ID.

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

Not available

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

Not available

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.

onn. 4K Pro Streaming Device (2026)8Press articleaftvnews.com/2026-onn-4k-pro-and-onn-4k-stick-benchmarks-the-pro-gets-a-much-needed-power-up-and-the-stick-holds-its-ownRead 23 October 2026AFTVnews calls the 2026 model the 2nd-gen onn 4K Pro and says it replaces the 1st-gen onn 4K Pro.

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.

$49.883Press articleaftvnews.comRead 13 October 2026AFTVnews: $49.88. US price excluding sales tax.

$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.

US, CA1Maker product pagewalmart.ca/en/ip/Onn-4K-Pro-Streaming-Device-with-Google-TV-Hands-Free-Voice-Control-Dolby-Atmos-Dolby-Vision/3ZOTV6K4P8B5Read 13 October 2026Sold at Walmart in the US and in Canada through walmart.ca. Other markets were not checked.

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

Not available

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.

Box2Owner's manualandroidtv-guide.com/wp-content/uploads/2025/05/Walmart-Onn-Pro-User-manual.pdfRead 13 October 2026Front and back panel diagrams show a flat table-top box with a power adapter.

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

4 of 11 differ

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

3840 × 2160px4Press articleaftvnews.comRead 13 October 2026AFTVnews Onn comparison chart, Onn 4K Pro (1st-Gen, 2024): 4K at 60 fps. 4K is the 3840 x 2160 raster.

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.

60Hz4Press articleaftvnews.comRead 13 October 2026Chart: 4K at 60 fps. HDR and bit depth conditions are not stated.

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. 4K Pro Streaming Device (2024)

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

Source4Press articleaftvnews.comRead 13 October 2026Chart: 4K at 60 fps. Only the highest published combination is stored.

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

HDR10, HDR10+, Dolby Vision4Press articleaftvnews.comRead 13 October 2026Chart: HDR10, HDR10+ and Dolby Vision. HLG is not listed.

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

Yes6Reviewandroidfaithful.com/review-onn-4k-pro-the-50-streamer-that-rivals-100-devicesRead 13 October 2026Review: connectivity includes HDMI-CEC for integration with other devices.

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.

Not available

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

3 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, H.265 (HEVC), VP9, AV14Press articleaftvnews.comRead 13 October 2026Chart: H.264, H.265, VP9 and AV1 decoding.

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 L15Spec databaseandroidtv-guide.com/streaming-gaming/onn-walmart-4k-pro-gtvRead 13 October 2026Spec table DRM: Widevine L1. No PlayReady level is listed.

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

5 of 8 differ

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

Dolby Digital Plus, Dolby Atmos6Reviewandroidfaithful.com/review-onn-4k-pro-the-50-streamer-that-rivals-100-devicesRead 13 October 2026Review: Dolby Atmos and Dolby Digital Plus are supported and DTS:X is absent. Decoder and passthrough roles are not stated.

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.

Yes1Maker product pagewalmart.ca/en/ip/Onn-4K-Pro-Streaming-Device-with-Google-TV-Hands-Free-Voice-Control-Dolby-Atmos-Dolby-Vision/3ZOTV6K4P8B5Read 13 October 2026Key item features: Dolby Atmos for an immersive audio experience. Atmos needs compatible content and audio equipment.

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

8 of 11 differ

System on chip

Amlogic S905X43Press articleaftvnews.comRead 13 October 2026AFTVnews reports an Amlogic S905X4. The author flags the chip details as reported and not confirmed by the maker.

Not available

CPU

ARM Cortex-A553Press articleaftvnews.comRead 13 October 2026AFTVnews: quad-core Cortex-A55 at 2 GHz, reported.

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

43Press articleaftvnews.comRead 13 October 2026AFTVnews: quad-core.

Not available

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

2GHz3Press articleaftvnews.comRead 13 October 2026AFTVnews reports 2 GHz and the comparison chart lists 2.0 GHz. It is a reported figure.

Not available

GPU

Mali-G31 MP23Press articleaftvnews.comRead 13 October 2026AFTVnews: Mali-G31 MP2, reported.

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.

3GB3Press articleaftvnews.comRead 13 October 2026AFTVnews: 3 GB RAM.

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

RAM type

Not available

Not available

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

32GB3Press articleaftvnews.comRead 13 October 2026AFTVnews: 32 GB storage, about 20 GB free after the operating system and app updates. Marketed capacity is stored.

Not available

Storage type

Not available

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.

Yes4Press articleaftvnews.comRead 13 October 2026Chart: one USB-A port, USB 3.0, usable for external storage. The source does not say whether apps or media only use it. Android Faithful also lists the port for expandable storage.

Not available

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

USB-A port for external storage4Press articleaftvnews.comRead 13 October 2026Chart: USB-A port usable for external storage. App installation on external storage is not stated.

Not available

Connectivity

4 of 7 differ

Wi-Fi

Wi-Fi 61Maker product pagewalmart.ca/en/ip/Onn-4K-Pro-Streaming-Device-with-Google-TV-Hands-Free-Voice-Control-Dolby-Atmos-Dolby-Vision/3ZOTV6K4P8B5Read 13 October 2026Key item features: supports Wi-Fi 6 (2.4/5GHz 802.11ax).

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 GHz1Maker product pagewalmart.ca/en/ip/Onn-4K-Pro-Streaming-Device-with-Google-TV-Hands-Free-Voice-Control-Dolby-Atmos-Dolby-Vision/3ZOTV6K4P8B5Read 13 October 2026Key item features: Wi-Fi 6 (2.4/5GHz 802.11ax).

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.

Not available

Not available

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

100Mbps1Maker product pagewalmart.ca/en/ip/Onn-4K-Pro-Streaming-Device-with-Google-TV-Hands-Free-Voice-Control-Dolby-Atmos-Dolby-Vision/3ZOTV6K4P8B5Read 13 October 2026Key item features: includes a 10/100 Ethernet port for wired internet.

Not available

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

Not available

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.

Not available

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. 4K Pro Streaming Device (2024)

Connector	Count	Version	Role	Data speed (Gbps)
HDMI	1	Not available	Video and audio output	Not available
Ethernet	1	Not available	Network	0.1
USB-A	1	USB 3.0	External storage and peripherals	Not available
DC power	1	Not available	Power input, barrel connector	Not available

Source2Owner's manualandroidtv-guide.com/wp-content/uploads/2025/05/Walmart-Onn-Pro-User-manual.pdfRead 13 October 2026Back panel diagram labels Ethernet, HDMI, USB 3.0 and Power, plus a Reset button. Ethernet is 10/100 on the Walmart Canada listing. AFTVnews lists a USB-A 3.0 port and a barrel power connector. No HDMI version is published.

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

Google Home6Reviewandroidfaithful.com/review-onn-4k-pro-the-50-streamer-that-rivals-100-devicesRead 13 October 2026Review: the built-in microphone and speaker make the device a Google Home hub that works with the TV off. A physical microphone switch is on the side.

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

7 of 9 differ

Remote model

Not available

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.

Bluetooth7Press articlecordcuttersnews.com/walmarts-new-onn-google-tv-4k-pro-device-will-cost-50-include-wifi-6-along-with-32gb-of-storageRead 13 October 2026Cord Cutters News, from an early hands-on video: Bluetooth 5.2 for the remote. No IR blaster is confirmed.

Not available

Remote microphone

Not available

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 Assistant7Press articlecordcuttersnews.com/walmarts-new-onn-google-tv-4k-pro-device-will-cost-50-include-wifi-6-along-with-32gb-of-storageRead 13 October 2026Same article: far-field microphone for Hey Google hands-free control. The remote has a Google Assistant button in the Quick Start Guide diagram.

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.

Not available

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

Yes2Owner's manualandroidtv-guide.com/wp-content/uploads/2025/05/Walmart-Onn-Pro-User-manual.pdfRead 13 October 2026Front panel diagram labels a Find my remote button on the streaming device.

Not available

Remote backlight

Yes4Press articleaftvnews.comRead 13 October 2026Chart: 2024 Premium remote with a backlight, a Star button, a Free TV button and a remote finder.

Not available

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

2 AAA batteries2Owner's manualandroidtv-guide.com/wp-content/uploads/2025/05/Walmart-Onn-Pro-User-manual.pdfRead 13 October 2026What's included lists batteries x2. The remote section marks them AAA.

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

7 of 8 differ

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

Google TV (Android TV OS)4Press articleaftvnews.comRead 13 October 2026Chart: Google TV, based on Android 12, 32-bit.

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 OS 123Press articleaftvnews.comRead 13 October 2026AFTVnews: Android TV 12 running in 32-bit mode on 64-bit hardware. The later software moved on.

Not available

App store

Not available

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 Cast5Spec databaseandroidtv-guide.com/streaming-gaming/onn-walmart-4k-pro-gtvRead 13 October 2026Spec table Features: Google Cast, Google Assistant, Wi-Fi 6, Dolby Atmos, far-field microphone, remote finder.

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 Assistant5Spec databaseandroidtv-guide.com/streaming-gaming/onn-walmart-4k-pro-gtvRead 13 October 2026Spec table Features: Google Assistant. The Quick Start Guide names Google Assistant and Hey Google.

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.

Yes3Press articleaftvnews.comRead 13 October 2026Far-field microphones and a built-in speaker. Four LEDs light up for the Hey Google wake word. A microphone mute switch sits on the side. Hands-free voice stays off until the user presses the mic button and opts in.

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Mobile remote platforms

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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

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Gaming

None of 2 known

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

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

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Power

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Power supply

External DC adapter2Owner's manualandroidtv-guide.com/wp-content/uploads/2025/05/Walmart-Onn-Pro-User-manual.pdfRead 13 October 2026Setup step 3.2: connect the included power adapter to the streaming device. The back panel diagram labels Power, USB 3.0, HDMI, Ethernet and a Reset button.

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.

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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.

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

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

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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.

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

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

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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.

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Dimensions and weight

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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.

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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.

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

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Certifications

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FCC ID

2AYYS-ORPK4VTG5Spec databaseandroidtv-guide.com/streaming-gaming/onn-walmart-4k-pro-gtvRead 13 October 2026The Certifications row links the FCC record 2AYYS-ORPK4VTG. fccid.io blocks automated access, so the record itself was not opened. The same row also links a Bluetooth SIG listing.

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Other certifications

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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

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In the box

4K Pro Streaming Device, Quick Start Guide, Remote control, 2 AAA batteries, HDMI cable, Power adapter2Owner's manualandroidtv-guide.com/wp-content/uploads/2025/05/Walmart-Onn-Pro-User-manual.pdfRead 13 October 2026What's included: streaming device, Quick Start Guide, remote control, 2 AAA batteries, HDMI cable and power adapter. Cable lengths are not stated.

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.

Yes2Owner's manualandroidtv-guide.com/wp-content/uploads/2025/05/Walmart-Onn-Pro-User-manual.pdfRead 13 October 2026What's included lists an HDMI cable. It is a separate cable.

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

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Product page

www.walmart.ca/en/ip/Onn-4K-Pro-Streaming-Device-with-Google-TV-Hands-Free-Voice-Control-Dolby-Atmos-Dolby-Vision/3ZOTV6K4P8B51Maker product pagewalmart.ca/en/ip/Onn-4K-Pro-Streaming-Device-with-Google-TV-Hands-Free-Voice-Control-Dolby-Atmos-Dolby-Vision/3ZOTV6K4P8B5Read 13 October 2026Walmart Canada listing of the onn brand 4K Pro with Google TV and hands-free voice control. Walmart owns the onn brand. The US listing no longer shows this model and the 2026 model has its own page.

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

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Manual

www.androidtv-guide.com/wp-content/uploads/2025/05/Walmart-Onn-Pro-User-manual.pdf2Owner's manualandroidtv-guide.com/wp-content/uploads/2025/05/Walmart-Onn-Pro-User-manual.pdfRead 13 October 2026Maker Quick Start Guide, onn 4K Pro Streaming Device with Google TV, document 100135769_EN_231222. Hosted on AndroidTV-Guide. One wide page, rendered and read.

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.

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Warranty

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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.