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Amazon Fire TV Cube (3rd Gen, 2022) vs Roku Express 4K+

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Product A: Amazon

Fire TV Cube (3rd Gen, 2022)

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Product B: Roku

Express 4K+

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Only differences

AAmazon Fire TV Cube (3rd Gen, 2022)

BRoku Express 4K+

General

6 of 8 differ

Series

Fire TV Cube2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Technical details heading identifies the third-generation Fire TV Cube.

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.

GA5Z9L4Owner's manualdigprjsurvey.amazon.com/csad/help/node/GFAYGLRY3SG69MYNRead 8 October 2026Product Specifications explicitly pairs Fire TV Cube (3rd Gen) with GA5Z9L. AFTGAZL is the developer Build model software identifier and is stored as an alias only. YKF470 and K7Q3MT are remote models and excluded from device model numbers.

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.

28 September 20225Press releaseaboutamazon.com/news/devices/devices-and-services-news-2022Read 8 October 2026September 28, 2022 event entries at 9:51 AM announce the next-generation Cube. 9:53 AM entry states shipping October 25. US launch month 2022-10, corroborated by original reviews published October 25.

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

Available2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Exact maker US page continues to offer this third-generation model for purchase. Current availability checked October 8, 2026.

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.

$139.995Press releaseaboutamazon.com/news/devices/devices-and-services-news-2022Read 8 October 2026September 28 event 9:53 AM Shipping soon entry states 139.99 USD, US launch price for standard bundle. Later price increases and discounts excluded.

$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.

Not available

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.

Box1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Exact table says Cube. Stored as box under the existing schema.

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

6 of 11 differ

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

3840 × 2160px2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Output/Input resolution supported row lists 2160p, 1080p and 720p up to 60 fps. 4K Ultra HD output establishes the standard 3840 x 2160 raster. Not a decoder-only value.

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.

60Hz2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Output/Input resolution supported row says up to 60 fps at 2160p, 1080p and 720p. No 120 Hz feature inferred from HDMI 2.1.

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.

AAmazon Fire TV Cube (3rd Gen, 2022)

Height (px)	Refresh rate (Hz)
2160	60
1080	60
720	60

Source2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Published Output/Input resolution supported row records each vertical resolution up to 60 fps. HDR, bit depth and chroma combinations are not separately stated, so those cells are omitted.

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+, HLG, Dolby Vision1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Exact HDR row lists HDR10, HDR10+, HLG and Dolby Vision. App, content and TV support are required.

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.

4-MEL, 5 (up to Level 9), 8 (up to Level 9), 9 (up to Level 5), 101Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Video codecs Dolby Vision row: 4-MEL, 5, 8, 9 and 10. Levels specified only for profiles 5 and 8 (up to 9), and 9 (up to 5). No level borrowed from a Fire TV Stick table. Local-file support depends on the player.

Not available

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

2.11Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Connectors / Ports explicitly separates one HDMI 2.1 input and one HDMI 2.1 output with ARC. This field is the output revision. Optional HDMI features are not inferred.

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

2.31Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Connectors / Ports row states HDCP 2.3. Retail page separately requires HDCP 2.2 on the connected 4K TV, which is a compatibility minimum.

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

Yes8Reviewandroidauthority.com/amazon-fire-tv-cube-3rd-gen-review-3243902Read 8 October 2026December 10, 2022 exact third-gen review explicitly states included remote supports HDMI-CEC for power and volume. Test ran Fire OS 7.6.1.3. Compatible equipment required.

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.

Super Resolution Upscaling2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Product description names Super Resolution Upscaling for converting HD content to 4K. No claim that all content or apps improve. HD source and 4K output required for this stated function.

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

4 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.265 / HEVC, H.264 / AVC, AV1, VP9, MPEG-2, MPEG-41Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Exact third-generation decoder table. Does not inherit H.263 or VP8 from older Cubes or Sticks.

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.

AAmazon Fire TV Cube (3rd Gen, 2022)

Codec	Profile	Level	Height (px)	Max frame rate (fps)	Bit depth (bits)
H.265 / HEVC	Main 10	5.1	2160	60	Not available
H.264 / AVC	High	5.1	2160	30	8
H.264 / AVC	High	5.1	1080	60	8
AV1	Main	5.1	2160	60	10
VP9	2	Not available	2160	60	Not available
MPEG-2	Not available	Not available	1080	60	Not available
MPEG-4	Not available	Not available	1080	60	Not available

Source1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Video codecs rows are decoder limits, distinct from HDMI output/input modes. H.264 explicitly has 2160p at 30 fps or 1080p at 60 fps, High L5.1 and 8-bit. AV1 Main L5.1 10-bit. VP9 Profile 2 at up to 30 Mbps with unspecified limitations. Horizontal pixel counts are omitted where only vertical resolution is published.

BRoku Express 4K+

Not available

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

MP46Reviewcomputerbase.de/artikel/audio-video-foto/amazon-fire-tv-cube-3-gen-test.82507Read 8 October 2026Supported codecs section explicitly reports AV1 videos in MP4 on an NTFS USB drive playing successfully in the integrated media player. Codec, storage route and container combination only. Not a claim for every MP4 codec. Player and firmware versions unstated.

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 v11, PlayReady 3.31Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Exact DRM row lists Widevine L1 v11 and PlayReady 3.3. Secure Media Path note applies to video media only. Does not guarantee service 4K availability.

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 MAT, Dolby Digital / AC3, Dolby Digital Plus / EAC3, Dolby Atmos (DDP+JOC and AC4), Dolby TrueHD, DTS, DTS-HD (basic profile), MPEG-H, AAC-LC, HE-AAC, HE-AACv2, AAC-ELD, xHE-AAC, FLAC, MIDI, MP3, Vorbis, PCM / WAV, AMR-NB, Opus1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Audio codecs are input formats and qualified routes. Dolby MAT transcoding applies to streaming apps and HDMI input. MAT input to MAT output is specified for HDMI input. TrueHD, DTS, basic-profile DTS-HD and MPEG-H are passthrough. Other named audio formats are decoder capabilities. PCM/Wave up to 96 kHz, six channels, 16/24-bit is a decoder limit, so output maximum fields remain empty.

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.

Dolby TrueHD (Atmos), DTS, DTS-HD (basic profile), MPEG-H1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Exact table explicitly names Dolby TrueHD, DTS, DTS-HD basic profile and MPEG-H passthrough. TrueHD Atmos is named in the Dolby row. Compatible player, content and HDMI audio equipment are required. These are current support statements, not guaranteed launch behavior. Full DTS-HD Master Audio support is not claimed.

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 pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Exact table names DDP+JOC, AC4 Atmos and TrueHD Atmos. Matching content, app and output equipment required.

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.

7.1 surround sound, 2-channel stereo, HDMI audio passthrough up to 5.12Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Audio support row names 7.1 surround, stereo and HDMI audio passthrough up to 5.1. It does not identify 7.1 as PCM. Separate current developer passthrough format support is retained without extending this general channel claim.

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

Yes2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Bluetooth technical row explicitly permits compatible speakers and headphones. Accessibility row corroborates headphone and compatible hearing-device output. Codec support is not inferred.

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

10 of 11 differ

System on chip

Amlogic POP1-G1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Processor (SoC) row: Amlogic POP1-G, also named Amlogic AML Popcorn. No generic A311D2 chipset substitution.

Not available

CPU

4x ARM Cortex-A73 at 2.2 GHz and 4x ARM Cortex-A53 at 2.0 GHz1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026CPU row: ARM 4xCA73 at 2.2 GHz and ARM 4xCA53 at 2.0 GHz.

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

81Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Four CA73 plus four CA53 cores. Exact US product page separately calls it octa-core.

Not available

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

2.2GHz1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Exact CPU row gives 2.2 GHz for the four CA73 cores. CA53 cluster runs at 2.0 GHz.

Not available

GPU

ARM Mali-G52 MP81Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026GPU row names ARM G52 MP8 at 800 MHz. Clock retained in this note because no separate GPU clock field exists.

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.

2GB1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Memory row: 2GB, LPDDR4/x at 4224 MT/s.

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

RAM type

LPDDR4/x1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Exact maker notation LPDDR4/x. Does not identify LPDDR4 versus LPDDR4X more precisely.

Not available

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

16GB1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Storage row: 16 GB internal marketed capacity. Free space is separate.

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.

Yes6Reviewcomputerbase.de/artikel/audio-video-foto/amazon-fire-tv-cube-3-gen-test.82507Read 8 October 2026Exact 2022 third-generation review NTFS-USB-Sticks section: NTFS or FAT32 files accessible through apps supporting external media. Apps can be moved after formatting storage on the Cube. NTFS media drive cannot also serve as the device-formatted app drive. Firmware version unstated.

Not available

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

USB external storage6Reviewcomputerbase.de/artikel/audio-video-foto/amazon-fire-tv-cube-3-gen-test.82507Read 8 October 2026Exact review describes USB-A drives for direct media playback and device-formatted app storage. No microSD slot. Capacity and exFAT support not inferred.

Not available

Connectivity

7 of 7 differ

Wi-Fi

Wi-Fi 6E2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Technical details Wi-Fi row names Wi-Fi 6E tri-band. 6 GHz operation requires a Wi-Fi 6E network using WPA3. Regional radio availability may differ, this is the US reference.

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 GHz, 6 GHz1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Wi-Fi row explicitly lists 2.4 GHz, 5.0 GHz and 6 GHz tri-band.

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.

2x2 MIMO1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Wi-Fi row explicitly lists 2x2 MIMO.

Not available

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

100Mbps1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Ethernet row: 10/100 Mbps built-in Ethernet. Not gigabit and not an optional dongle.

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.

5.01Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Bluetooth row specifies 5.0 with BLE for the device, separate from the remote.

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.

AAmazon Fire TV Cube (3rd Gen, 2022)

Connector	Count	Version	Role
HDMI	1	2.1	Video input
HDMI	1	2.1	Video output, ARC input support
USB-A	1	2.0	External storage, webcam or compatible controller
Ethernet	1	Not available	10/100 Mbps network
DC power	1	Not available	Power input
Other	1	Not available	IR extender output

Source3Owner's manuald1ergij2b6wmg5.cloudfront.net/Amazon+Fire+TV+User+Guides/Fire+TV+Cube+Documentation/FireTVCube_Gen3_Online_QSG_US.pdfRead 8 October 2026Page 1 rear diagram labels exactly six physical connectors: HDMI input, HDMI output, USB-A, network, power and IR extender. Revisions and Ethernet rate from exact developer and retail technical tables. QSG page 2 names external webcam. External storage scope from ComputerBase exact review. Compatible USB controller use from PCWorld exact review. IR connector is stored as other because it is an IR control port, not an audio output.

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

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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

Alexa3Owner's manuald1ergij2b6wmg5.cloudfront.net/Amazon+Fire+TV+User+Guides/Fire+TV+Cube+Documentation/FireTVCube_Gen3_Online_QSG_US.pdfRead 8 October 2026Page 2 Do even more with Alexa explains voice control of compatible smart-home devices. No Matter controller or Thread border-router capability inferred.

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

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Remote model

Alexa Voice Remote Enhanced2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Included in the box explicitly names Alexa Voice Remote Enhanced. Original supplied remote, excluding Pro bundles and later replacements.

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.

Bluetooth2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Alexa Voice Remote Enhanced technical details Technology row specifies Bluetooth 5.0. No infrared radio is inferred for the remote from the Cube IR blaster.

Not available

Remote microphone

Yes3Owner's manuald1ergij2b6wmg5.cloudfront.net/Amazon+Fire+TV+User+Guides/Fire+TV+Cube+Documentation/FireTVCube_Gen3_Online_QSG_US.pdfRead 8 October 2026Page 2 remote diagram labels Microphone and Alexa voice button.

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.

Alexa2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Original remote voice button supports Alexa. Alexa+ is a later device software feature, qualified separately.

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, Volume, Mute, Channel up/down2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Product page Enhanced remote paragraph and QSG page 2 label power, volume, mute and channel buttons. Compatible television, audio equipment or cable-box setup required.

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

No7Reviewpcworld.com/article/1360317/amazon-fire-tv-cube-3rd-gen-review.htmlRead 8 October 2026October 25, 2022 review An upgraded remote section explicitly says standard Cube remote lacks remote finder. Pro is separate.

Not available

Remote backlight

No7Reviewpcworld.com/article/1360317/amazon-fire-tv-cube-3rd-gen-review.htmlRead 8 October 2026Same section explicitly says standard Cube remote lacks backlighting. Pro is separate.

Not available

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

2 AAA batteries2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Enhanced remote technical details: two included AAA batteries. No rechargeable internal battery or charging port inferred.

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

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

Fire OS1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Exact OS version row says Fire OS 7.

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

Fire OS 7 (Android 9)1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 20262022 identity table states Fire OS 7 and Android Level 28 (Android 9). Android Authority original review ran Fire OS 7.6.1.3. No Fire OS 8 inheritance from 2023 Sticks.

Not available

App store

Amazon Appstore9Maker product pageaboutamazon.com/news/devices/xbox-gaming-on-amazon-fire-tvRead 8 October 2026How to get started explicitly names Fire TV Cube (3rd Gen) and installing Xbox app via Amazon Appstore.

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.

Miracast1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Miracast display mirroring with Fire tablet row says Supported. No native AirPlay or Google Cast claim.

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.

Alexa, Alexa+2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Original Alexa and current exact product page Alexa+. Alexa+ requires a US Amazon account and compatible devices set to US English. Focused experience included, full access across devices requires Prime or Alexa+ Standard. Later software support, not a 2022 launch feature.

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.

Yes1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Far-field Alexa control row says Supported. Four-microphone array is built into this device. No linked Echo is required.

Not available

Mobile remote platforms

Android, iOS, Other2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Voice support row names free Fire TV app for Android, iOS and Fire OS. Fire OS is represented by other in the existing enum.

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

VoiceView screen reader, Screen magnifier, Text Banner, Closed captions, Audio Description, Audio Streaming for Hearing Aids (ASHA)2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Accessibility row lists these features. Captions and Audio Description depend on content. ASHA supports select compatible Bluetooth hearing devices, not every hearing aid.

Not available

Gaming

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

Amazon Luna, Xbox Game Pass2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Exact current product page gaming section names Luna and Xbox Game Pass. US availability, subscriptions, accounts, compatible controllers and network required. Xbox support is a later addition, not a launch promise.

Not available

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

Xbox Wireless Controller (Bluetooth), Xbox Adaptive Controller, Sony DualSense (Bluetooth), Sony DualShock 4 (Bluetooth)9Maker product pageaboutamazon.com/news/devices/xbox-gaming-on-amazon-fire-tvRead 8 October 2026Exact supported Cube guide names these controllers over compatible Bluetooth. Microsoft account and Game Pass Ultimate required for subscription catalog. Fortnite has a membership-free option. No all-game or all-controller claim.

Not available

Power

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Power supply

External DC adapter3Owner's manuald1ergij2b6wmg5.cloudfront.net/Amazon+Fire+TV+User+Guides/Fire+TV+Cube+Documentation/FireTVCube_Gen3_Online_QSG_US.pdfRead 8 October 2026Page 1 instructions connect included external power adapter to Cube power port and wall outlet. Not USB power.

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.

12 V DC, 1.25 A4Owner's manualdigprjsurvey.amazon.com/csad/help/node/GFAYGLRY3SG69MYNRead 8 October 2026Exact GA5Z9L electrical rating: 12 V DC, 1.25 A. Device input rating. Not a measurement of power consumption or proof of adapter output.

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.

Not available

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

4 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.

Width86Height77Depth86mm(3.4 × 3 × 3.4 in)2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Device Size row: 86 x 86 x 77 mm. Width and depth are the square footprint, height is vertical, corroborated by the technical diagram. Millimetre figures take precedence over rounded inch figures. Excludes adapter and remote.

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.

513g(1.1 lb)2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Device Weight row: 513 g. Device only, excludes adapter and remote.

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.

Width38Height158Depth17mm(1.5 × 6.2 × 0.7 in)2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Enhanced remote Size row: 38 x 158 x 17 mm. Width across buttons, height along buttons, depth thickness.

Not available

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

51g(1.8 oz)2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Enhanced remote Weight row: 51 g without batteries.

Not available

Certifications

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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

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In the box

Fire TV Cube (3rd Gen), Alexa Voice Remote Enhanced, Power adapter, 2 AAA batteries, Quick Start Guide2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Exact Included in the box row. HDMI, IR extender and Ethernet cables sold separately. Standard Enhanced remote bundle.

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.

No2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Exact Included in the box row explicitly states HDMI cable sold separately. QSG page 1 also says not included.

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

www.amazon.com/dp/B09BZZ3MM72Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026Exact US standard bundle ASIN B09BZZ3MM7. Remote Pro and protection-plan bundles are excluded from the reference.

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

developer.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.html1Maker product pagedeveloper.amazon.com/docs/device-specs/device-specifications-fire-tv-cube.htmlRead 8 October 2026Exact table headed Fire TV Cube - 3rd Gen (2022). Older Cube tables on the same page are excluded.

Not available

Manual

d1ergij2b6wmg5.cloudfront.net/Amazon+Fire+TV+User+Guides/Fire+TV+Cube+Documentation/FireTVCube_Gen3_Online_QSG_US.pdf3Owner's manuald1ergij2b6wmg5.cloudfront.net/Amazon+Fire+TV+User+Guides/Fire+TV+Cube+Documentation/FireTVCube_Gen3_Online_QSG_US.pdfRead 8 October 2026Official US Gen3 quick-start guide linked from exact product page. Three image-only pages rendered and inspected.

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

0 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.

1year2Maker product pageamazon.com/dp/B09BZZ3MM7Read 8 October 2026US Warranty and service row: 1-year limited warranty. Purchased extensions and statutory rights excluded.

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.