- LIFELIKE COLORS & IMAGES: Quantum-dot technology enables brighter, more vivid, and accurate colors when viewed from wider angles. QLED offers an increased color gamut and improved picture vibrancy over conventional LED displays for optimal visibility.
- DOLBY VISION & HDR 10+: Improves picture quality with expanded contrast by reproducing brighter brights, darker darks, and providing a greater range of colors in-between. Enjoy your movies and 4K programs with greater detail and immersiveness.
- EDGELESS: The bezel-less design extends the image to the edges of the TV, making your viewing experience feel more expansive and immersive.
- ROKU TV - AMERICA'S #1 STREAMING PLATFORM: Stream up to 350+ free live TV channels, 1000s of streaming apps, in-season TV, hit movies, music, and premium channels. Roku TV provides access to Netflix, Prime Video, MAX, Apple TV+, Disney+, ESPN+, Hulu, Fox Sports, YouTube TV, Pluto TV, Peacock, NFL and more!
Unparalleled entertainment experience
that fits your lifestyle
Lifelike Images with Remarkable Realism - Quantum Dot self-emissive technology enables brighter, more vivid, and more accurate colors even when viewed from wider angles.
Dolby Vision, HDR10+ - Expanded contrast by reproducing brighter brights, and darker darks and expanded the shades in between. Enjoy movies and 4k programs with more detail and immersiveness.
Roku Voice Remote - a convenient push-to-talk button, that allows you to effortlessly search, play entertainment, and perform various tasks using your voice. Harness the power of your voice to swiftly explore a vast array of channels, indulge in entertainment, and much more.
Edgeless Bezel - An edgeless design is sleek and modern and extends the image to the edges of the TV, making your viewing experience feel more expansive and immersive.
Roku TV, America’s #1 Streaming platform – Cord Cutters can stream 350+ free live TV channels, 1,000 Streaming Apps, In-Season TV, Hit Movies, Music, and Premium channels. Access one of the broadest selection of streaming apps like Netflix, Prime Video, MAX, Apple TV+, Disney+, ESPN+, Hulu, Fox Sports, YouTube TV, Pluto TV, Peacock, and NFL for entertainment your way.
A Perfect Fit for your Smart Home – Pair your Roku TV to Find and Play entertainment, control their streaming, turn on the TV, and more with Siri, Alexa, or Hey Google. Compatible with Amazon Alexa, Google Assistant-enabled, and Apple HomeKit devices.
Cast Your Content & Entertainment – Sync videos, music,c or photos from your device to your TV using the free Roku Mobile App or Apple AirPlay2.
Connectivity is King – A full array of inputs to connect your cable box, game console, streaming stick, sound bar, DVD or Blu-ray player, or antenna for local channels. Packed with 4 x HDMI, 1 x Composite Video, and 1 x Optical Digital inputs for maximum flexibility.
Unparalleled entertainment experience
that fits your lifestyle
Lifelike Images with Remarkable Realism - Quantum Dot self-emissive technology enables brighter, more vivid, and more accurate colors even when viewed from wider angles.
Dolby Vision, HDR10+ - Expanded contrast by reproducing brighter brights, and darker darks and expanded the shades in between. Enjoy movies and 4k programs with more detail and immersiveness.
Roku Voice Remote - a convenient push-to-talk button, that allows you to effortlessly search, play entertainment, and perform various tasks using your voice. Harness the power of your voice to swiftly explore a vast array of channels, indulge in entertainment, and much more.
Edgeless Bezel - An edgeless design is sleek and modern and extends the image to the edges of the TV, making your viewing experience feel more expansive and immersive.
Roku TV, America’s #1 Streaming platform – Cord Cutters can stream 350+ free live TV channels, 1,000 Streaming Apps, In-Season TV, Hit Movies, Music, and Premium channels. Access one of the broadest selection of streaming apps like Netflix, Prime Video, MAX, Apple TV+, Disney+, ESPN+, Hulu, Fox Sports, YouTube TV, Pluto TV, Peacock, and NFL for entertainment your way.
A Perfect Fit for your Smart Home – Pair your Roku TV to Find and Play entertainment, control their streaming, turn on the TV, and more with Siri, Alexa, or Hey Google. Compatible with Amazon Alexa, Google Assistant-enabled, and Apple HomeKit devices.
Cast Your Content & Entertainment – Sync videos, music,c or photos from your device to your TV using the free Roku Mobile App or Apple AirPlay2.
Connectivity is King – A full array of inputs to connect your cable box, game console, streaming stick, sound bar, DVD or Blu-ray player, or antenna for local channels. Packed with 4 x HDMI, 1 x Composite Video, and 1 x Optical Digital inputs for maximum flexibility.
Specifications
| Series | QX Series |
| Model number | WR55QX400 |
| Upc | 813784023079 |
| Display type | QLED UHD 4K |
| Smart tv os | Roku TV |
| Screen class | 55" |
| Screen size | 54.6 inches |
| Display technology | QLED |
| Resolution | 4K UHD |
| Resolution spec | 3840 x 2160 |
| Backlight type | Blue Direct LED |
| Refresh rate | 60Hz |
| Display colors | 1.07 billion |
| Color gamut | （90%(Min)93%(Typ.) DCI-P3uv（Low QD board,20%） |
| High dynamic range format (hdr) | Dolby Vision, HDR10, HLG (Hybrid Log-Gamma) |
| Brightness (nits) | (280Mini）/(320Typ) |
| Aspect ratio | 16:9 |
| Contrast ratio | >5000:1 |
| Viewing angle | 178°(H) x 178°(V)(CR≥10) |
| Response time gray-gray | 6.5ms (Typ.) |
| 3d adaptive comb filter | Built-In |
| Backlight life | 30,000 hrs |
| View modes | Low Power, Movie, Normal, Sports, Vivid |
| Tuner type | ATSC/NTSC |
| Headphone output | 1 |
| Ethernet input | 1 |
| Smart home technology compatibility | Amazon Alexa, Google Assistant-enabled, and Apple HomeKit devices |
| Casting | Roku Mobile App or Apple AirPlay2 |
| Wi-fi | Dual Band 802.11ac Wi-Fi |
| Usb input | Supports Multimedia (Photos, Video & Audio) (2) |
| Hdmi (qty) input | 4 qty HDMI 2.1 (1 ARC) |
| Composite video input | 1(Mini AV in) |
| Optical digital output | 1 |
| Speaker type | Bottom Side |
| Audio power (watts) | 2 Channel x 10W |
| Audio passthrough | Dolby Atmos, Dolby Digital +, Dolby Digital, PCM |
| Dolby processing | Dolby Atmos, Dolby Digital+ |
| Built-in speakers | Yes |
| Control buttons | Power/Input |
| Multilingual on-screen-display | English, French, Spanish, German |
| Closed caption | Yes |
| Parental control (v-chip) | Yes |
| Accessible menu system (cvaa) | Yes |
| Quick start guide | Yes |
| Remote control | Roku Voice Remote |
| Remote control battery | Two "AAA" |
| Warranty | 1 Year |
| Roku user guide link | go.roku.com/tvmanual |
| Vesa (mm) | 300 x 300 |
| Vesa screw size | M6x12mm |
| Base stand screw size (qty) | ST5x25mm (4pcs) |
| With stand (h/w/d) | 48.3" x 30.7" x 12" |
| Without stand (h/w/d) | 48.3" x 28" x 3.5 |
| Stand width (w) | 40.78 |
| Product weight with stand (lbs) | 23.94lbs |
| Product weight without stand (lbs) | 23.55lbs |
| Master carton size (wxhxd) (inches) | 53.2" x 6.1" x 31.6" |
| Master carton weight (lbs) | 33.4lbs |
| Led tv | Yes |
| Stand | Yes |
| Screws | Yes |
| Voice remote | Yes |
| Batteries | Yes |
| Warranty card | Yes |
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