Streaming devices / Compare

Formuler Z12 Ultra vs Roku Ultra (2024)

A

Product A: Formuler

Z12 Ultra

57 of 97 known

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B

Product B: Roku

Ultra (2024)

62 of 97 known

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Only differences

AFormuler Z12 Ultra

BRoku Ultra (2024)

General

5 of 8 differ

Series

Z124Press releaseformuler.tv/single-post/introducing-the-new-formuler-z12-ultra-se-z12-proRead 15 October 2026Maker news post says the Formuler Z12 family is expanding with the Z12 Ultra SE and the Z12 Pro.

Ultra2Press releaseroku.com/blog/new-roku-ultraRead 7 October 2026Exact 2024 Roku Ultra launch, describing successive Ultra devices.

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

K4R1N46Owner's manualdropbox.com/scl/fi/nl6mshn2s8lukdga95pwl/Quick-guide_FORMULER_Z12-Ultra_-EU-UK-_Outline-4.pdfRead 15 October 2026Compliance page lists FCC ID 2AV9UK4R1N4, IC 29328-K4R1N4, Model number K4R1N4, Product name Formuler Z12 Ultra. K4R1N4 is the regulatory model number.

4850R, 4850X1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Exact retail product details list Model 4850R. Developer model identifier 4850X is separately sourced. Not older 4800/4802 or Walmart LT.3Maker product pagedeveloper.roku.com/dev/docs/hardwareRead 7 October 2026Current hardware table names Ultra Brewster 4850X, 2024. Software hardware identifier alongside retail SKU 4850R.

GTIN / EAN

880960457087014Retailer pageautogarsas.lt/en/products/formuler-z12-ultra-4k-bt-android-tv-priedelisRead 15 October 2026Retailer barcode 8809604570870. Satking (RECFOR032) and Swiss Post (article 848338) list the same EAN for the Z12 Ultra with the GTV-BT3 remote.15Retailer pageshop.post.ch/en/electronics/tv/streaming-boxes/formuler-media-player-z-12-ultra/p/848338Read 15 October 2026EAN/GTIN 8809604570870, article 848338.16Retailer pagesatking.de/en/formuler-z12-ultra-bt3-edition-4k-uhd-android-12-ip-receiverRead 15 October 2026EAN 8809604570870, product number RECFOR032.

8296100068889Retailer pageabt.com/Roku-Ultra-4K-Streaming-Device-2024-4850R/p/213248.htmlRead 7 October 2026Exact 4850R product header UPC 829610006888.

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

31 August 20253Press releaseformuler.tv/single-post/2025-formuler-z12-ultra-releaseRead 15 October 2026Maker news post dated Aug 31, 2025 titled 2025 Formuler Z12 Ultra Release. It gives no price or release date.

24 September 20242Press releaseroku.com/blog/new-roku-ultraRead 7 October 2026Dated September 24, 2024.

Status

Available3Press releaseformuler.tv/single-post/2025-formuler-z12-ultra-releaseRead 15 October 2026The maker's regulatory page and the maker's news list still show the Z12 Ultra as a current Android OTT model, and the Z12 Ultra SE and Z12 Pro were added beside it in 2026.5Maker product pageformuler.tv/regulatoryRead 15 October 2026Z12 Ultra is still listed with its Declaration of Conformity beside the 2026 Z12 models.13Reviewtroypoint.com/formuler-z12-ultraRead 15 October 2026Review of 31 Oct 2025 by a buyer who bought the unit on Amazon. It gives a US price of 229.99 USD, which is a selling price and is not stored as launch MSRP.

Available3Maker product pagedeveloper.roku.com/dev/docs/hardwareRead 7 October 2026Current models table explicitly manufactured and supported. Current product is for sale, so available.

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

Not available

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

Not available

$99.992Press releaseroku.com/blog/new-roku-ultraRead 7 October 2026Availability explicitly $99.99 in US. US pre-tax MSRP, separate from Canadian price or later sales.

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.

EU, GB, US, CA, AU6Owner's manualdropbox.com/scl/fi/nl6mshn2s8lukdga95pwl/Quick-guide_FORMULER_Z12-Ultra_-EU-UK-_Outline-4.pdfRead 15 October 2026The guide is the EU and UK edition and carries a FCC and ISED statement for the US and Canada.8Maker spec sheet (PDF)dropbox.com/scl/fi/1g4ie5cvhm928ohcogoq7/Z12-Ultra_CE-RED.pdfRead 15 October 2026EU Radio Equipment Directive declaration. A separate ACMA declaration covers Australia.

US2Press releaseroku.com/blog/new-roku-ultraRead 7 October 2026Launch US availability and current US 4850R reference. Canadian retail identifier not proved, so no CA variant inherited.

ColoursiThe maker's own colour names

Black / Rose gold1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs list Color: Black / Rose gold.

Black9Retailer pageabt.com/Roku-Ultra-4K-Streaming-Device-2024-4850R/p/213248.htmlRead 7 October 2026Exact 4850R listing names Black Finish. No arbitrary finish variants added.

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 pageformuler.tv/z12ultraRead 15 October 2026A separate box that connects by its own HDMI cable and a 12 V adapter.

Box8Reviewtomsguide.com/tvs/roku-ultra-2024-reviewRead 7 October 2026Exact 2024 review repeatedly identifies small box, separate from sticks.

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 × 2160px1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs list Output Resolution: 4K (3840 x 2160).

3840 × 2160px1Maker product pageroku.com/products/roku-ultraRead 7 October 2026TV compatibility: up to 2160p at 60 fps (3840 x 2160). This is HDMI output, not UI rendering resolution.

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.

60Hz11Press articlecnx-software.comRead 15 October 2026Article of 8 Sep 2025 lists Video Output HDMI 2.0 up to 4K (3840 x 2160) @ 60 Hz with Dolby Vision support. The maker publishes no output refresh rate in text, only 4K 60fps tiles. The article's HDMI 2.0 is not stored, because AndroidTVBox.eu lists HDMI 2.1 for the same port.

60Hz1Maker product pageroku.com/products/roku-ultraRead 7 October 2026TV compatibility explicitly up to 2160p at 60 fps and Dolby Vision at 60 fps. Requires compatible HDMI/HDCP chain. No higher UI/TV rate imported.

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.

AFormuler Z12 Ultra

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

Source11Press articlecnx-software.comRead 15 October 2026One 4K 60 Hz row from the article. Bit depth, chroma and HDR pairing are not published.

BRoku Ultra (2024)

Width (px)	Height (px)	Refresh rate (Hz)	HDR format
3840	2160	60	Dolby Vision

Source1Maker product pageroku.com/products/roku-ultraRead 7 October 2026TV compatibility explicitly supports Dolby Vision at 60 fps on 4K HDR TVs. Native 3840 x 2160 output. Bit depth/chroma unproved.

HDR formats

HDR10, HDR10+, Dolby Vision, HLG1Maker product pageformuler.tv/z12ultraRead 15 October 2026Page names Dolby Vision and HDR10+ and says 4K HDR across all HDR formats. The maker's specs table adds HLG. HDR10 is covered by the all-formats statement and the Troypoint review.2Maker product pageformuler.tv/specs-1Read 15 October 2026Z12 Ultra column: HDR10+, HLG, Dolby Vision.12Press articleandroidtvbox.eu/formuler-z12-ultra-is-a-new-stylish-4k-rtd1319c-streamer-with-128gb-emmc-and-dolby-vision-atmosRead 15 October 2026Article lists Dolby Vision, Dolby Atmos, HLG and HDR10+.13Reviewtroypoint.com/formuler-z12-ultraRead 15 October 2026Review highlights list Supports Dolby Vision-Atmos, DTS, HDR10, HDR10+, HLG, repeated from the maker's page. No playback test is given.

HDR10, HDR10+, Dolby Vision, HLG1Maker product pageroku.com/products/roku-ultraRead 7 October 2026TV compatibility explicitly lists Dolby Vision, HDR10/10+ and HLG. Compatible content, TV and HDMI chain required.

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

2.1b1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Ports table explicitly HDMI 2.1b. Optional features are not inferred from revision.

HDCP version

Not available

2.21Maker product pageroku.com/products/roku-ultraRead 7 October 20264K compatibility requires an HDMI input supporting HDCP 2.2. Stored supported 4K-chain version, not a claim of a newer maximum.

HDMI-CEC

Yes9Maker product pagesupport.formuler.tv/kb/article/166-how-to-use-hdmi-cec-on-your-formuler-deviceRead 15 October 2026Helpdesk article lists applicable models as All and the options Enable CEC, Turn off with TV, Turn on with TV and Use TV remote controller. The page said it was in preview mode when read. Forum users report CEC power control on the Z12 Ultra.

Yes7Owner's manualsupport.roku.com/en-us/article/360057488733Read 7 October 2026Exact 4850 compatibility with HomeKit. Player power control requires TV HDMI-CEC and Roku 1-touch-play. Published CEC function, not every CEC optional feature.

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

Yes1Maker product pageformuler.tv/z12ultraRead 15 October 2026Page describes Quick Media Switching, which avoids blackout periods when switching between frame rates. A QMS-enabled TV is required for that blackout-free switching. The maker states no separate frame rate matching setting on this page.

Yes2Press releaseroku.com/blog/new-roku-ultraRead 7 October 2026Exact 2024 launch explicitly HDMI 2.1 Quick Media Switching between refresh rates/content sources. Official auto-adjust article supplies native-content matching settings and app restrictions.12Owner's manualsupport.roku.com/article/change-the-refresh-rateRead 7 October 2026Roku auto-adjust display refresh switches to source native rate on compatible players. Exact 2024 launch additionally establishes QMS switching. Some apps including Netflix/Hulu exclude auto-adjust. Enable in Advanced display settings. QMS requires compatible TV, no implied universal app support.

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 to 2160p, 1080p to 2160p1Maker product pageroku.com/products/roku-ultraRead 7 October 2026TV compatibility separately names upscaling 720p to 1080p and 720p/1080p to 2160p. No named AI processing invented.

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.

AV1, HEVC, H.264, MVC, AVS, MPEG-1, MPEG-2, MPEG-4, VC-1, Real1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs Video Decoder row: Dolby Vision, 4K@60fps, AV1, H.265 (HEVC), AVS, H.264 (AVC, MVC), Real, MPEG-1/2/4, VC-1. No VP9 is listed, so VP9 is not stored.

H.264, HEVC, VP9.2, AV11Maker product pageroku.com/products/roku-ultraRead 7 October 2026USB media formats explicitly H.264/AVC, H.265/HEVC, VP9.2 and AV1. Local USB route and listed container restrictions, no generic chip capability inherited.

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

AFormuler Z12 Ultra

Codec	Width (px)	Height (px)	Max frame rate (fps)	Bit depth (bits)
AV1	3840	2160	60	10
HEVC	3840	2160	60	10

Source2Maker product pageformuler.tv/specs-1Read 15 October 2026Z12 Ultra column: A/V Decoding 4K@60fps 10-bit, AV1 & HEVC. No profile or level is published for the Z12 Ultra. The Main 10 level 5.1 wording belongs to the Z11 models and is not used.

BRoku Ultra (2024)

Not available

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

Not available

MKV, MP4, MOV1Maker product pageroku.com/products/roku-ultraRead 7 October 2026USB video playback table lists MKV, MP4 and MOV. VP9.2 only MKV, AV1 MP4/MKV, AVC and HEVC all three. This is local playback, not every streaming protocol.

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

Widevine L1, Widevine L31Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs DRM row: Widevine L1, L3.

Not available

Audio

4 of 8 differ

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

Dolby Atmos, MPEG-1 Layer 1/2/3 (2-CH), MPEG-2 Layer 1/2, HE-AAC v1/v21Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs Audio Decoder row: Dolby Atmos, MPEG-1 Layer 1/2/3 (2-CH), MPEG-2 Layer 1/2, HE-AAC v1/v2. Decoder, output and passthrough roles are not separated by the maker. DTS is named only by the Troypoint review and is not stored.2Maker product pageformuler.tv/specs-1Read 15 October 2026Z12 Ultra column: Dolby Atmos.

AAC, MP3, WMA, FLAC, PCM, AC3, EAC3, DTS Digital Surround, ALAC, HE-AAC, AC-4 with Atmos, EAC3 with Atmos1Maker product pageroku.com/products/roku-ultraRead 7 October 2026USB audio format table lists each stored format. DTS is passthrough, Atmos is via AC-4/EAC3 in listed local containers and HDMI with compatible sound equipment. Decode versus passthrough qualified separately.

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, AC3, EAC31Maker product pageroku.com/products/roku-ultraRead 7 October 2026Audio features explicitly DTS Digital Surround pass through over HDMI. AC3/EAC3 passthrough separately sourced from official streaming specification. No TrueHD/DTS-HD inference.4Maker product pagedeveloper.roku.com/dev/docs/mediaRead 7 October 2026Supported audio notes explicitly AC3/EAC3 passthrough to receiving device, separately names Brewster 4850X Dolby support. DTS passthrough also explicit. No lossless-format support inferred.

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

Yes1Maker product pageformuler.tv/z12ultraRead 15 October 2026Page and tech specs list Dolby Atmos. Content, app and HDMI audio path requirements apply.

Yes1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Audio features explicitly Dolby Atmos decode via HDMI, with compatible speakers. USB audio table names AC-4 and EAC3 Atmos, not TrueHD passthrough.

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 pageroku.com/products/roku-ultraRead 7 October 2026Audio features explicitly list Digital stereo over HDMI, stored as 2.0. No inferred PCM multichannel output.

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

Yes1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Bluetooth Headphone Mode explicitly pairs headphones directly to Ultra. Bluetooth input streaming is separate and not used as output proof.

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

Realtek RTD1319C1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs CPU row names Realtek RTD1319C. The maker lists no separate SoC row.

Not available

CPU

Quad-core Arm Cortex-A551Maker product pageformuler.tv/z12ultraRead 15 October 2026The maker's specs table lists Quad-core (ARM Cortex A55). No clock speed is published.2Maker product pageformuler.tv/specs-1Read 15 October 2026Z12 Ultra column: Quad-core (ARM Cortex A55).

ARM Cortex-A553Maker product pagedeveloper.roku.com/dev/docs/hardwareRead 7 October 2026Exact Brewster/4850X table: ARM Cortex A55. No SoC/GPU or clock inferred from accelerated graphics API.

CPU cores

41Maker product pageformuler.tv/z12ultraRead 15 October 2026Maker specs table: Quad-core.2Maker product pageformuler.tv/specs-1Read 15 October 2026Z12 Ultra column: Quad-core.

42Press releaseroku.com/blog/new-roku-ultraRead 7 October 2026Launch explicitly all-new quad core processor. No CPU clock or SoC name stated.

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

Not available

Not available

GPU

ARM Mali-G57 MC11Maker product pageformuler.tv/z12ultraRead 15 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.

4GB1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs list 4GB DDR4. The maker names 2666 MHz. CNX Software and AndroidTVBox.eu say 2400 MHz. The maker value wins and no speed field exists.2Maker product pageformuler.tv/specs-1Read 15 October 2026Z12 Ultra column: 4GB DDR4.

2GB3Maker product pagedeveloper.roku.com/dev/docs/hardwareRead 7 October 2026Exact Brewster/4850X row explicitly 2 GB. Direct HTTP fetch returns 403. Readable official web-tool cached page independently opened. Access limit recorded.

RAM type

DDR41Maker product pageformuler.tv/z12ultraRead 15 October 2026

Not available

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

128GB1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs list 128GB eMMC with a footnote that actual user storage is less.2Maker product pageformuler.tv/specs-1Read 15 October 2026Z12 Ultra column: 128GB.

4GB8Reviewtomsguide.com/tvs/roku-ultra-2024-reviewRead 7 October 2026Design explicitly only 4 GB internal storage. Maker is silent. No storage technology or external app-install ability inferred.

Storage type

eMMC1Maker product pageformuler.tv/z12ultraRead 15 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.

Yes1Maker product pageformuler.tv/z12ultraRead 15 October 2026The maker's specs table lists Memory Expansion: Micro SD and the tech specs list one Micro SD card slot. The maker does not say whether apps, media or both can use the card.2Maker product pageformuler.tv/specs-1Read 15 October 2026Z12 Ultra column: Memory Expansion Micro SD.

Yes1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Local playback via USB port. True covers additional local media storage only, not adding internal capacity or installing apps on USB.

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

microSD card slot2Maker product pageformuler.tv/specs-1Read 15 October 2026Z12 Ultra column: Memory Expansion Micro SD. The maker does not say whether apps, media or both can use the card.

USB mass storage for local media playback1Maker product pageroku.com/products/roku-ultraRead 7 October 2026USB local playback only. App installation on external media unproved.

Connectivity

6 of 7 differ

Wi-Fi

Wi-Fi 6E1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs list Wireless 6E AX 2x2 (Tri-band).2Maker product pageformuler.tv/specs-1Read 15 October 2026Z12 Ultra column: Wireless 6e ax 2x2 (Tri-band).

Wi-Fi 61Maker product pageroku.com/products/roku-ultraRead 7 October 2026Networking explicitly 802.11 ax Wi-Fi 6.

Wi-Fi bands

2.4 GHz, 5 GHz, 6 GHz1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tri-band Wi-Fi 6E covers 2.4 GHz, 5 GHz and 6 GHz.8Maker spec sheet (PDF)dropbox.com/scl/fi/1g4ie5cvhm928ohcogoq7/Z12-Ultra_CE-RED.pdfRead 15 October 2026The declaration applies ETSI EN 300 328 (2.4 GHz), EN 301 893 (5 GHz) and EN 303 687 (6 GHz Wi-Fi), which matches tri-band Wi-Fi 6E.

2.4 GHz, 5 GHz1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Networking explicitly 2.4 GHz / 5 GHz. No 6 GHz inferred.

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 pageformuler.tv/z12ultraRead 15 October 2026Tech specs list 2x2.

MIMO1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Networking explicitly dual-band MIMO. Stream/antenna count not published.

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

1,000Mbps1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs list Gigabit (1000M).2Maker product pageformuler.tv/specs-1Read 15 October 2026Z12 Ultra column: Gigabit(1000Mbps).

100Mbps1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Networking and ports explicitly 10/100 Base-T. Maximum rated built-in link 100 Mbps, not review throughput.

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

Not available

Not available

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

5.21Maker product pageformuler.tv/z12ultraRead 15 October 2026

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.

AFormuler Z12 Ultra

Connector	Count	Version	Role	Data speed (Gbps)
HDMI	1	Not available	Video and audio output	Not available
USB-A	1	USB 3.0	External storage and accessories	Not available
USB-A	1	USB 2.0	External storage and accessories	Not available
Ethernet	1	Not available	Gigabit network	1
microSD	1	Not available	Storage expansion	Not available
Other	1	Not available	Optical S/PDIF audio output	Not available
DC power	1	Not available	Power input	Not available

Source1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs Ports: power input 1, USB 3.0 1, USB 2.0 1, HDMI 1, Gigabit LAN 1, Micro SD card 1, Optical S/PDIF 1. The maker names no HDMI version.

BRoku Ultra (2024)

Connector	Count	Version	Role	Data speed (Gbps)
USB-A	1	USB 3.0	Local media playback and remote charging	Not available
HDMI	1	2.1b	Video and audio output	Not available
Ethernet	1	Not available	10/100 Base-T networking	0.1
DC power	1	Not available	Power input	Not available

Source1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Ports inventory USB 3.0, HDMI 2.1b, Ethernet 10/100 and Power. Maker back-view photo confirms one of each. TechRadar independently identifies single HDMI, USB-A and Ethernet. Remote USB-C excluded.

Smart home

2 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

No8Reviewtomsguide.com/tvs/roku-ultra-2024-reviewRead 7 October 2026Smart-home section explicitly does not adopt any Matter connectivity. Review 2024 hardware, current maker still lists proprietary integrations only. Not inferred from absence in product table.

Smart home platforms

Not available

Roku Smart Home, Apple HomeKit, Google Home, Amazon Alexa1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Compatibility lists Roku Smart Home, Apple HomeKit, Google Home and Alexa. HomeKit is accessory integration, not Matter-controller proof.

Remote control

6 of 9 differ

Remote model

GTV-BT31Maker product pageformuler.tv/z12ultraRead 15 October 2026Page promotes the BT3 Backlight Remote and the GTV-BT3 Bluetooth Voice Remote. The box contents image shows one remote with the box. The Quick guide names GTV-BT3 in its Find My Remote section.7Maker product pageformuler.tv/gtv-bt3Read 15 October 2026GTV-BT3 Bluetooth Voice Remote.

Roku Voice Remote Pro (2nd edition)1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Remote control and box table explicitly Roku Voice Remote Pro (2nd edition). Original supplied remote, not a later generic replacement.

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, Infrared7Maker product pageformuler.tv/gtv-bt3Read 15 October 2026Maker calls it a Bluetooth voice remote. Bluetooth is the link to the box. Infrared is used for the learned TV controls.

Not available

Remote microphone

Yes1Maker product pageformuler.tv/z12ultraRead 15 October 2026The GTV-BT3 is a voice remote with a Voice Assistant feature. The maker does not name the assistant in text.7Maker product pageformuler.tv/gtv-bt3Read 15 October 2026Voice Assistant is a feature of the GTV-BT3. The assistant is not named in the text.

Yes5Owner's manualsupport.roku.com/en-us/article/learn-about-voice-remote-proRead 7 October 2026Hands-free and push-to-talk control explicitly described for Voice Remote Pro second edition. Slider green enables voice microphone. No capsule count claimed.

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

Not available

Roku Voice2Press releaseroku.com/blog/new-roku-ultraRead 7 October 2026Supplied second-edition remote supports hands-free Hey Roku voice commands and shortcuts. Other assistant integrations require external devices.

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

Power, Volume, Input source7Maker product pageformuler.tv/gtv-bt3Read 15 October 2026Universal IR Learning: program the remote to manage the TV's power, volume and input source. The side TV buttons use IR while the box link is Bluetooth.

Power, Volume, Mute5Owner's manualsupport.roku.com/en-us/article/learn-about-voice-remote-proRead 7 October 2026Second-edition description confirms TV power and volume controls. Its exact diagram includes mute among the shared core buttons. TV compatibility and remote setup affect operation. No input switching implied.

Remote finder

Yes1Maker product pageformuler.tv/z12ultraRead 15 October 20266Owner's manualdropbox.com/scl/fi/nl6mshn2s8lukdga95pwl/Quick-guide_FORMULER_Z12-Ultra_-EU-UK-_Outline-4.pdfRead 15 October 2026Find My Remote page: the GTV-BT3 plays a sound for 30 seconds after the FUNC key on the back of the box is pressed.7Maker product pageformuler.tv/gtv-bt3Read 15 October 2026Find My Remote works from the Formuler Remote app or the function key of the Z12 Ultra.

Yes1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Product explicitly lost remote finder. Launch describes box-button and hands-free trigger.

Remote backlight

Yes1Maker product pageformuler.tv/z12ultraRead 15 October 20267Maker product pageformuler.tv/gtv-bt3Read 15 October 2026LED backlight with adjustable brightness.

Yes1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Product explicitly backlit buttons on supplied Voice Remote Pro.

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

2 batteries included in the box6Owner's manualdropbox.com/scl/fi/nl6mshn2s8lukdga95pwl/Quick-guide_FORMULER_Z12-Ultra_-EU-UK-_Outline-4.pdfRead 15 October 2026What's in the Box page shows 2x Batteries. The battery type is not written.

Built-in rechargeable lithium-ion battery5Owner's manualsupport.roku.com/en-us/article/learn-about-voice-remote-proRead 7 October 2026Charging section explicitly rechargeable lithium-ion battery. Second-edition full charge 5.5 h and typical 3 months remain in source context, not unsupported schema fields.

Remote charging port

Not available

USB-C1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Box includes USB-C cable for remote, and launch explicitly USB-C charging for second edition.2Press releaseroku.com/blog/new-roku-ultraRead 7 October 2026Second-edition remote explicitly convenient USB-C charging.

Software

8 of 8 differ

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

Android1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs list Android 12 and the page says MYTVOnline 3 comes preinstalled.

Roku OS6Owner's manualsupport.roku.com/en-us/article/learn-about-ultraRead 7 October 2026Exact 4850 guide Learn about Roku features identifies Roku OS. Launch OS revision unproved.

Operating system at launch

Android 121Maker product pageformuler.tv/z12ultraRead 15 October 2026

Not available

App store

Formuler Market and Google Play Store10Maker product pagesupport.formuler.tv/kb/article/99-how-to-install-download-appsRead 15 October 2026Helpdesk article: install apps from the Market app (Home > Market) or from the Google Play Store with your own account, or by side-loading. It names no per-model difference except the Z nano. The Google Play Store is reached through the Market app, which carries a curated list.

Roku Streaming Store6Owner's manualsupport.roku.com/en-us/article/learn-about-ultraRead 7 October 2026Exact-model guide includes Roku Streaming Store link in footer and add-app guidance. Current platform store name.

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

Not available

Apple AirPlay 27Owner's manualsupport.roku.com/en-us/article/360057488733Read 7 October 2026Compatibility table explicitly Ultra 4850 with Roku OS 9.4 or later for AirPlay 2. Apple host requires iOS 12.3 or macOS 10.14.5 or later, same network. Published minimum compatibility is not the launch OS.

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

Not available

Roku Voice, Amazon Alexa, Google Assistant, Apple Siri1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Exact model compatibility supports Alexa and Google Home. Footer explicitly requires Alexa-enabled or Google Assistant-enabled external device. Roku Voice via remote, Siri via separate HomeKit support guide. Not onboard Alexa/Google microphones.7Owner's manualsupport.roku.com/en-us/article/360057488733Read 7 October 2026HomeKit section explicitly Siri control via supported Apple device. Basic remote commands via Siri only within AirPlay session. Google Assistant/Alexa integrations require external assistant devices as product footer states. Roku Voice runs from supplied remote.

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

Yes2Press releaseroku.com/blog/new-roku-ultraRead 7 October 2026Supplied second-edition Voice Remote Pro explicitly hands-free commands. Enabled remote microphone slider and nearby remote required.

Mobile remote platforms

Not available

Android, iOS6Owner's manualsupport.roku.com/en-us/article/learn-about-ultraRead 7 October 2026Exact 4850 guide Get the Roku mobile app explicitly iOS and Android for player control. No Windows capability inherited.

Accessibility features

Not available

Text-to-speech screen reader, Closed captioning10Owner's manualsupport.roku.com/en-us/article/enable-the-texttospeech-screen-readerRead 7 October 2026Explicit Roku Ultra support for text-to-speech screen reader in US. Software update may be required. Closed captioning separately linked in exact 4850 guide. No audio-description promise for every app.13Owner's manualsupport.roku.com/en-us/article/turn-on-closed-captioningRead 7 October 2026Roku closed captioning on compatible channel content. Available caption tracks and app settings vary. Exact 4850 guide explicitly links this feature.

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.

Not available

Not available

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

Not available

Not available

Power

3 of 5 differ

Power supply

External DC adapter1Maker product pageformuler.tv/z12ultraRead 15 October 2026The maker lists a power input and a Power Adapter in the box, with rating 12VDC / 1A.

External DC adapter1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Supplied external power adapter, dedicated Power connector and 12 V input shown in product details. Not USB-powered.

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

12 VDC / 1 A1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs: Power rating 12VDC / 1A.

12 V, 1.5 A1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Power input table literally 12 V - 1.5 A. Device input only. Does not prove included adapter output or power consumption.

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.

12W1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs: Power Consumption Max. 12W.

Not available

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

0.5W1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs: Standby Power Max. 0.5W (Ultra low power). Stored as the published maximum.

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.

Width135Height24Depth100mm(5.3 × 0.9 × 3.9 in)1Maker product pageformuler.tv/z12ultraRead 15 October 2026Tech specs: Length 135 mm, Width 100 mm, Thickness 24 mm. The box lies flat, so thickness is height and the 135 mm side with the ports is width. Post.ch lists the same 13.5 cm width and 24 mm height.2Maker product pageformuler.tv/specs-1Read 15 October 2026Z12 Ultra column: 135 x 100 x 24 (mm).15Retailer pageshop.post.ch/en/electronics/tv/streaming-boxes/formuler-media-player-z-12-ultra/p/848338Read 15 October 2026Height 2.4 cm, width 13.5 cm, depth 100 mm. This confirms the maker's orientation.

Width124.4Height25.4Depth127mm(4.9 × 1 × 5 in)1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Maker size table publishes 124.4 x 127.0 x 25.4 mm without axis labels. Exact 4850R Dell retail table separately identifies width 4.9 inches, depth 5 inches and height 1 inch. Those labels establish the axis order. Stored metric values remain literal maker numbers, without converting rounded inches.15Retailer pagedell.com/en-us/shop/homeentertainment/apd/roku-ultra-4850r-network-audio-video-player-wireless-lan-usb-hdmi-cable-included/7t26pn/4850rRead 7 October 2026Exact 4850R Physical Characteristics names width 4.9 inches, depth 5 inches and height 1 inch. Used only to establish the axis order of maker literal metric dimensions.

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

Not available

167.2g(5.9 oz)1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Weight table explicitly 167.2 g (5.9 ounces). Player-only product details, no remote 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

2AV9UK4R1N46Owner's manualdropbox.com/scl/fi/nl6mshn2s8lukdga95pwl/Quick-guide_FORMULER_Z12-Ultra_-EU-UK-_Outline-4.pdfRead 15 October 2026Compliance page (page 29 of the PDF): FCC ID 2AV9UK4R1N4 for Formuler Z12 Ultra. The GTV-BT3 remote has its own FCC ID 2AV9U1Y0UN6. fccid.io blocks agents so the FCC record itself was not opened.

Not available

Other certifications

CE RED, FCC, ISED, RCM (Australia)6Owner's manualdropbox.com/scl/fi/nl6mshn2s8lukdga95pwl/Quick-guide_FORMULER_Z12-Ultra_-EU-UK-_Outline-4.pdfRead 15 October 2026The guide carries an FCC and ISED (Canada) compliance statement.8Maker spec sheet (PDF)dropbox.com/scl/fi/1g4ie5cvhm928ohcogoq7/Z12-Ultra_CE-RED.pdfRead 15 October 2026Declaration of Conformity under the Radio Equipment Directive 2014/53/EU for Formuler Z12 Ultra, type Media Box, issued 1 Aug 2024 rev B. The ACMA supplier declaration covers RCM.

Not available

In the box

1 of 2 differ

In the box

Z12 Ultra media receiver, GTV-BT3 remote control, Silicone remote cover, 2 batteries, HDMI cable, Power adapter, Quick setup guide1Maker product pageformuler.tv/z12ultraRead 15 October 2026Page icons: Media Receiver, Remote Control, Silicone Remote Cover, Batteries, TV Cable, Power Adapter, Quick Setup Guide.6Owner's manualdropbox.com/scl/fi/nl6mshn2s8lukdga95pwl/Quick-guide_FORMULER_Z12-Ultra_-EU-UK-_Outline-4.pdfRead 15 October 2026What's in the Box page: Media Receiver, Remote Control, Silicone Remote Cover, 2x Batteries, TV Cable, Power Adapter. The Quick Setup Guide is the booklet itself.16Retailer pagesatking.de/en/formuler-z12-ultra-bt3-edition-4k-uhd-android-12-ip-receiverRead 15 October 2026Delivery list: streaming box, GTV-BT3 Bluetooth voice remote, silicone remote cover, HDMI cable, power adapter, quick setup guide, batteries for the remote. The page also shows 700 g, which looks like a shipping weight and is not used.

Roku Ultra streaming player, Roku Voice Remote Pro (2nd edition), USB-C charging cable for remote, Premium High Speed HDMI cable, Power adapter1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Exact Model 4850R box inventory lists player, second-edition remote, remote USB-C cable, Premium High Speed HDMI cable and power adapter. No remote headphone jack, batteries or old-model extras imported.

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.

Yes1Maker product pageformuler.tv/z12ultraRead 15 October 2026The box lists a TV Cable. The Quick guide icon shows an HDMI plug. CNX Software and Satking call it an HDMI cable.6Owner's manualdropbox.com/scl/fi/nl6mshn2s8lukdga95pwl/Quick-guide_FORMULER_Z12-Ultra_-EU-UK-_Outline-4.pdfRead 15 October 2026Icon labelled TV Cable shows an HDMI plug on both ends.

Yes1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Exact product box explicitly supplies a separate Premium High Speed HDMI cable.

Links

Not compared

Product page

www.formuler.tv/z12ultra1Maker product pageformuler.tv/z12ultraRead 15 October 2026

www.roku.com/products/roku-ultra1Maker product pageroku.com/products/roku-ultraRead 7 October 2026Exact current 4850R product details, read as ordinary public HTML.

Spec sheet

www.formuler.tv/specs-12Maker product pageformuler.tv/specs-1Read 15 October 2026Maker comparison table of the Z12 Ultra, Z12 Ultra SE and Z12 Pro.

Not available

Manual

www.dropbox.com/scl/fi/nl6mshn2s8lukdga95pwl/Quick-guide_FORMULER_Z12-Ultra_-EU-UK-_Outline-4.pdf6Owner's manualdropbox.com/scl/fi/nl6mshn2s8lukdga95pwl/Quick-guide_FORMULER_Z12-Ultra_-EU-UK-_Outline-4.pdfRead 15 October 2026Quick guide in 16 languages, 32 pages, created 9 Sep 2025. It holds installation steps and the Find My Remote steps and no spec table.

image.roku.com/c3VwcG9ydC1B/Roku-Ultra-2024-QSG.pdf14Owner's manualimage.roku.com/c3VwcG9ydC1B/Roku-Ultra-2024-QSG.pdfRead 7 October 2026Exact Roku support model 4850 link points to Roku-Ultra-2024-QSG.pdf. Independently downloaded one-page 2024 guide. No older UltraLT guide used.

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

1year11Maker spec sheet (PDF)images.thdstatic.com/catalog/pdfImages/5b/5b125123-9613-4138-9e94-2095d9c4cb30.pdfRead 7 October 2026Roku-branded US streaming player warranty. Page 1: one year from original end-user purchase and delivery in US from Roku/authorized seller. Retailer-hosted maker document. Consumer statutory rights excluded.

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