In this guide today, we are here with our in-depth review of the best 55 smart tv under 400. There are plenty of choices with multiple websites and therefore difficult to choose the best one. We recommend to read the guide and choose the one that suits your need as we review products based on the various options, features, price, quality and many more . To avoid this dilemma, we recommend to read this guide and review. It gives you insider information on how to choose the best 55 smart tv under 400 for your needs and budget.
In this in-depth review guide, we will discuss about the best 55 smart tv under 400.
The Best 55 smart tv under 400
1
INSIGNIA 55-inch Class F50 Series LED 4K UHD Smart Fire TV with Alexa Voice Remote (NS-55F501NA26)
9.9
Amazon.com
2
Samsung 55-Inch Class QLED Q7F Series Samsung Vision AI Smart TV (2025 Model, 55Q7F) Quantum HDR, Object Tracking Sound Lite, Q4 AI Gen1 Processor, 4K...
9.4
Amazon.com
3
Roku Smart TV 2026 – 55-Inch Select Series, 4K QLED TV – Roku TV with Voice Remote – Flat Screen QLED Television with Wi-Fi for Streaming Live Local News,...
9.4
Amazon.com
4
TOSHIBA 55-inch Class C350 Series LED 4K UHD Smart Fire TV with Voice Remote with Alexa (55C350NU)
9.3
Amazon.com
5
Samsung 55-Inch Class Crystal UHD U8000F 4K Smart TV (2025 Model) Endless Free Content, Crystal Processor 4K, MetalStream Design, Knox Security, Compatible...
8.7
Amazon.com
6
INSIGNIA 50" Class F50 Series LED 4K UHD Smart Fire TV, Voice Remote with Alexa, Stream Live TV Without Cable
8.5
Amazon.com
7
Roku Smart TV – 55-Inch Plus Series, Mini-LED TV – RokuTV with Enhanced Voice Remote – Flat Screen 4K QLED Television with Dolby Vision & Wi-Fi for Streaming...
8.3
Amazon.com
8
Samsung 50-Inch Class Crystal UHD U8000H Series Samsung Vision AI Smart TV (2026 Model, 50U8000H) Crystal Processor 4K, Endless Free Content, Motion...
8.3
Amazon.com
9
Roku Smart TV – 55-Inch Select Series, 4K HDR TV – Roku TV with Enhanced Voice Remote – Flat Screen LED Television with Wi-Fi for Streaming Live Local News,...
8.1
Amazon.com
10
Samsung 55-Inch Class QLED Q8F 4K UHD Smart TV (2025 Model) Q4 AI Processor, 100% Color Volume with Quantum Dot, AirSlim Design, Endless Free Content,...
8
Amazon.com
The Best 55 smart tv under 400
INSIGNIA 55-inch Class F50 Series LED 4K UHD Smart Fire TV with Alexa Voice Remote (NS-55F501NA26)
out of stock
Amazon.com
Features
| Model | NS-55F501NA26 |
| Warranty | 1 Year |
| Color | Black |
| Size | 55-inch |
- 4k Ultra HD (2160p resolution): Enjoy breathtaking HDR10 4K movies and TV shows at 4 times the resolution of Full HD, and upscale your current content to Ultra HD-level picture quality.
- High Dynamic Range: Provides a wide range of color details and sharper contrast, from the brightest whites to the deepest blacks.
- All-in-one: Get right to your good stuff. With Fire TV, you can enjoy a world of entertainment from apps like Prime Video, Netflix, Disney+, Hulu, and HBO Max. Plus, stream for free with Fire TV Channels, Pluto TV, Tubi, and more. Access over 1.8 million movies and TV episodes. Subscriptions may be required. Feature and content availability may vary.
- Smart Home: Your smart home hub. Pair Fire TV with compatible smart home devices to see live camera feeds, use AirPlay, control your lighting and thermostat, and more.
- Free Content: Stream for free. Access over 1 million free movies and TV episodes from popular ad-supported streaming apps like Fire TV Channels, Tubi, and Pluto TV. Subscriptions may be required. Feature and content availability may vary.
- DTS Virtual-X Sound: An immersive sound format creates a three-dimensional sound experience with your TV’s speakers.
- Supports HDMI eARC: Allows you to transmit the original full-resolution audio signal through HDMI for the highest quality sound.
- Versatile connections: Connect your home theater components such as a Blu-ray player, game console, speakers, cable/antenna and more. TV connections include 3 HDMI ports, composite (AV) jacks, digital optical output, USB port, headphone jack, coaxial jack, Ethernet port and Wi-Fi technology.
- Parental controls: Manage your children’s viewing by blocking content based on program ratings or entire channels. Once the kids are in bed, access whatever you want with a simple PIN.
- Wall mountable: Compatible with VESA pattern 200 × 200 for simple and safe wall mounting.
Roku Smart TV 2026 – 55-Inch Select Series, 4K QLED TV – Roku TV with Voice Remote – Flat Screen QLED Television with Wi-Fi for Streaming Live Local News,...
$279.99
in stock
Amazon.com
Features
| Part Number | 55R5D5 |
| Model | 55R5D5 |
| Warranty | For any Roku Smart Home device, Roku streaming player, Roku Streaming Stick, or Roku audio device, Roku warrants the hardware against defects in materials and workmanship under normal use for a period of one (1) year from the date of purchase ("Warranty Period") if used in accordance with the provided documentation. If Roku determines that the device’s hardware is defective during the Warranty Period, Roku’s sole obligation, and your exclusive remedy, will be to either repair or replace the unit with either a new or rebuilt device, at its option. Important information about warranty returns and replacements is available on the Roku support site. You may also return a device for any reason, subject to the terms of the applicable return policy: 1) Within thirty (30) days from the date of purchase from Roku; or 2) within the applicable return period if purchased from an authorized re-seller or distributor. Additional details regarding product returns can be found on the Roku support site. |
| Color | Black |
| Release Date | 2026-04-17T00:00:01Z |
| Size | 55" |
- Seamless streaming: With fast Wi-Fi and apps that launch in a snap, Roku Select Series TVs get you to your entertainment quickly. You get excellent picture quality, clear sound, automatic updates, and more. It’s simple to use. Hard to outgrow.
- Breathtaking picture: Sharp 4K brings out rich detail on our 55" flat screen TV, while the QLED screen and HDR10 create bright, accurate colors. Roku Smart Picture cleans up incoming TV signals, optimizes them, and chooses the right picture mode.
- Explore a world's worth of TV: Dive into all kinds of entertainment and easily find your favorites or soon-to-be favorites.
- A ton of entertainment at the best price—free: Your go-to streaming destination for free entertainment, Roku has 500+ TV channels, with live in-season shows, hit movies, weather, local news, and award-winning Roku Originals.
- Home sweet home screen: Move apps around and make the Roku experience your own with a home screen that easily gets you to what you want to watch fast.
- Just keeps getting better: Get the newest apps, features, and more with automatic software updates.
- A perfect fit for any smart home: Enjoy easy voice control with Roku Voice, Siri, Alexa, or Google Assistant. Effortlessly share videos, photos, music, and more from your Apple devices to your smart TV with Apple AirPlay.
- Enhanced voice remote: Search across thousands of apps with your voice and set personal shortcuts for your favorite apps. And even the deepest couch cushions are no match for the lost remote finder.
- How sound should sound: Not all TV speakers are created equal. Roku Select Series TVs are designed for clear speech and louder sound so you can catch every word. Use Bluetooth Headphone Mode to listen to your entertainment without waking the house.
- Effortlessly clean design: Make the screen the star of the show with a sleek, frameless design that modernizes your entertainment setup.
Samsung 55-Inch Class QLED Q7F Series Samsung Vision AI Smart TV (2025 Model, 55Q7F) Quantum HDR, Object Tracking Sound Lite, Q4 AI Gen1 Processor, 4K...
out of stock
Amazon.com
Features
| Part Number | QN55Q7FAAFXZA |
| Model | QN55Q7FAAFXZA |
| Warranty | 1 Year Manufacturer |
| Color | Black |
| Release Date | 2025-03-31T00:00:01Z |
| Size | 55-Inch |
- POWERS DRAMATICALLY CLEAR COLOR AND SOUND: Enjoy your movies and shows in stunning 4K, regardless of the source resolution. Plus, get the most out of what you're watching with AI-optimized color boosted picture and audio quality, enhanced accordingly to the type of content*
- OVER A BILLION COLORS THAT STAY TRUE EVEN IN THE BRIGHTEST SCENES**: Appreciate every beautiful shade of color with incredible precision. The nano-sized Quantum Dots can display the entire color spectrum,* so you can admire billions of shades at any brightness level.
- SECURES PERSONAL DATA*** WITH TRIPLE-LAYER PROTECTION: Your TV experiences are secured. Samsung Knox Security defends against harmful apps and phishing sites while keeping sensitive data, such as PINs and passwords, secure. It also safeguards your IoT devices connected to your TV.
- A WORLD OF CONTENT AT YOUR FINGERTIPS, NO SUBSCRIPTION REQUIRED: Watch 2,700+ free channels including 400+ Samsung TV Plus premium channels and on free streaming apps. Enjoy national and local news, sports, movies and more. Explore new content being added regularly.
- BRINGS OUT DETAILS AND CONTRAST WITH DEEP BLACKS AND BOLD CONTRAST: Reveal hidden details with deep blacks and vibrant brights. The dynamic tone mapping of HDR10+ enhances contrast, delivering vibrant imagery and ensuring all meaningful details stand out.
TOSHIBA 55-inch Class C350 Series LED 4K UHD Smart Fire TV with Voice Remote with Alexa (55C350NU)
out of stock
Amazon.com
Features
| Model | 55C350NU |
| Warranty | 1 Year |
| Color | Black |
| Size | 55-inch |
- REGZA Engine ZR: REGZA Engine ZR is Toshiba's revolutionary Engine. With the power of precise analyzing technology, it drives the maximum potential of picture quality to reach the resolution of 4K for scenes, to deliver stunning picture quality for breath-tak-ing viewing experience.
- AI 4K Upscaler: Toshiba's unique Al upscaling technology provides the near-4K level picture quality for Full HD content. Instead of simply replicating every pixel, it intelligently detects the colors of neighboring pixels and decides the proper color of each pixel by considering the detailed texture of the real sight. No matter what the content is, you can enjoy every scene with the amazing clarity of near-4K quality.
- Dolby Vision*Atmos: Combine Dolby Vision HDR imaging with Dolby Atmos sound to get engaging audio-visual performance, transforming your TV into an entertainment powerhouse with detailed images and acoustics, so as to achieve amazing realism that you'll see, hear, and feel like never before. That is, your truly spectacular home entertainment.
- Ultimate Motion: Ultimate Motion reduces blur in fast moving scenes, offering crisp and clear images for fast action sequences. Its smooth viewing experience puts you into the scene.
- Game Mode: Game mode supports many gaming features such as ALLM (Auto Low Latency Mode), VRR (Variable Refresh Rate) and eARC. With the combination of Ultimate Motion, breathtaking reality and excitement make your gaming experience unforgettable.
- Sports Mode: Sports Mode is tailor-made for sports contents, in particular the fast moving actions. The Algorithm is set up to fully show details of the game on TV, and the unrivaled clarity takes you to every exciting moment. Just cheer up for the game the way it touches you.
- Super Contrast Booster: Accurate picture contrast emphasizes and maximizes the depth of picture color, to show things as real. As a result, any content you watch on TV, you will enjoy a realistic picture with breathtaking contrast.
- Fire TV: Get right to the good stuff. Fire TV puts your favorite apps front and center on one main home screen. So you can quickly find shows, movies, and live TV you love without the endless scrolling.
Samsung 55-Inch Class Crystal UHD U8000F 4K Smart TV (2025 Model) Endless Free Content, Crystal Processor 4K, MetalStream Design, Knox Security, Compatible...
out of stock
Amazon.com
Features
| Part Number | UN55U8000FFXZA |
| Model | UN55U8000FFXZA |
| Warranty | 1 Year Manufacturer |
| Color | Black |
| Release Date | 2025-05-19T00:00:01Z |
| Size | 55-Inch |
- POWERS 3D COLOR MAPPING AND UPSCALING FOR A CLEAR PICTURE: Experience every shade of color as it was meant to be seen in dazzling 4K. Plus, make your movies, TV shows, games and sports look even better with powerful 4K upscaling.
- ELEGANT DESIGN THAT ENRICHES YOUR SPACE: Enhance your home décor with a TV crafted from a single metal sheet and featuring a slim bezel. Add a hint of sophistication with an aircraft-inspired design, and watch TV with minimal distractions.
- SECURES PERSONAL DATA* WITH TRIPLE-LAYER PROTECTION: Your TV experiences are secured. Samsung Knox Security defends against harmful apps and phishing sites while keeping sensitive data, such as PINs and passwords, secure. It also safeguards your IoT devices connected to your TV.
- A WORLD OF CONTENT AT YOUR FINGERTIPS. NO SUBSCRIPTION REQUIRED: Watch 2,700+ free channels including 400+ Samsung TV Plus premium channels and on free streaming apps. Enjoy national and local news, sports, movies and more. Explore new content being added regularly.
- UPGRADES WHAT YOU WATCH TO CRISP 4K CLARITY: Get up to 4K resolution in all the content you love. Watch details come to life in every scene of shows or that classic film you love, even if the source quality is lower-resolution.
- EXPERIENCE CLEAR PICTURE AND SMOOTH MOTION IN GAMES AND SPORTS: By estimating the movement between frames, Motion Xcelerator predicts and smooths them out for improved picture clarity at up to 60Hz.
INSIGNIA 50" Class F50 Series LED 4K UHD Smart Fire TV, Voice Remote with Alexa, Stream Live TV Without Cable
$179.99
$299.99
in stock
Amazon.com
Features
| Model | NS-50F501NA26 |
| Warranty | 1 Year |
| Color | Black |
| Size | 50-inch |
- 4k Ultra HD (2160p resolution): Enjoy breathtaking HDR10 4K movies and TV shows at 4 times the resolution of Full HD, and upscale your current content to Ultra HD-level picture quality.
- High Dynamic Range: Provides a wide range of color details and sharper contrast, from the brightest whites to the deepest blacks.
- All-in-one: Get right to your good stuff. With Fire TV, you can enjoy a world of entertainment from apps like Prime Video, Netflix, Disney+, Hulu, and HBO Max. Plus, stream for free with Fire TV Channels, Pluto TV, Tubi, and more. Access over 1.8 million movies and TV episodes. Subscriptions may be required. Feature and content availability may vary.
- Smart Home: Your smart home hub. Pair Fire TV with compatible smart home devices to see live camera feeds, use AirPlay, control your lighting and thermostat, and more.
- Free Content: Stream for free. Access over 1 million free movies and TV episodes from popular ad-supported streaming apps like Fire TV Channels, Tubi, and Pluto TV. Subscriptions may be required. Feature and content availability may vary.
- DTS Virtual-X Sound: An immersive sound format creates a three-dimensional sound experience with your TV’s speakers.
- Supports HDMI eARC: Allows you to transmit the original full-resolution audio signal through HDMI for the highest quality sound.
- Versatile connections: Connect your home theater components such as a Blu-ray player, game console, speakers, cable/antenna and more. TV connections include 3 HDMI ports, composite (AV) jacks, digital optical output, USB port, headphone jack, coaxial jack, Ethernet port and Wi-Fi technology.
- Parental controls: Manage your children’s viewing by blocking content based on program ratings or entire channels. Once the kids are in bed, access whatever you want with a simple PIN.
- Wall mountable: Compatible with VESA pattern 200 × 200 for simple and safe wall mounting.
Samsung 50-Inch Class Crystal UHD U8000H Series Samsung Vision AI Smart TV (2026 Model, 50U8000H) Crystal Processor 4K, Endless Free Content, Motion...
$247.99
$297.99
in stock
Amazon.com
Features
| Part Number | UN50U8000HFXZA |
| Model | UN50U8000HFXZA |
| Warranty | 1 Year Manufacturer |
| Color | Black |
| Release Date | 2026-04-20T00:00:01Z |
| Size | 50 inches |
- CRYSTAL PROCESSOR: Powerful processor enhances colors and sharpens details for a vibrant 4K viewing experience. Experience every shade of color as it was meant to be seen in dazzling 4K. Plus, make your movies, TV shows, games and sports look even better with powerful 4K upscaling.
- ENDLESS FREE CONTENT: Watch 2,700+ free streaming options, including 750+ subscription-free channels on Samsung TV Plus. Enjoy news, sports, movies, kids' shows and reality TV — all without a subscription. Discover endless entertainment with new content added regularly, tailored to your mood and interests.*
- MOTION XCELERATOR: Experience clear picture and smooth motion in games and sports. Enjoy smooth motion and clear visuals with technology that estimates and adjusts frame transitions in real time. Whether gaming or watching sports, enjoy up to 4K 60Hz performance that brings every play, move and scene to life with realistic clarity and motion.
- COLOR BOOSTER: Supercharge your color. From fiery reds to sparkling blues, make every color come to life with intensity. Color Booster transforms your content into a visual masterpiece.
- 4K UPSCALING: Upgrades what you watch to crisp 4K clarity. Upgrade your favorite shows, movies and more. Experience incredible details and clarity in every frame, even from lower-quality sources, with advanced upscaling technology.
Roku Smart TV – 55-Inch Plus Series, Mini-LED TV – RokuTV with Enhanced Voice Remote – Flat Screen 4K QLED Television with Dolby Vision & Wi-Fi for Streaming...
$349.99
$499.99
in stock
Amazon.com
Features
| Part Number | 55R6C7 |
| Model | 55R6C7 |
| Warranty | For any Roku Smart Home device, Roku streaming player, Roku Streaming Stick, or Roku audio device, Roku warrants the hardware against defects in materials and workmanship under normal use for a period of one (1) year from the date of purchase ("Warranty Period") if used in accordance with the provided documentation. If Roku determines that the device’s hardware is defective during the Warranty Period, Roku’s sole obligation, and your exclusive remedy, will be to either repair or replace the unit with either a new or rebuilt device, at its option. Important information about warranty returns and replacements is available on the Roku support site. You may also return a device for any reason, subject to the terms of the applicable return policy: 1) Within thirty (30) days from the date of purchase from Roku; or 2) within the applicable return period if purchased from an authorized re-seller or distributor. Additional details regarding product returns can be found on the Roku support site. |
| Color | Black |
| Release Date | 2025-06-10T00:00:01Z |
| Size | 55" |
- Breathtaking picture: Mini-LED backlighting brings out the rich detail on this 55" flat screen 4K TV, while the QLED screen and Dolby Vision technology create striking color and vivid highlights.
- Explore a world's worth of TV: Dive into all kinds of entertainment and easily find your favorites or soon-to-be favorites.
- A ton of entertainment at the best price—free: Your go-to streaming destination for free entertainment, Roku has 500+ TV channels, with live in-season shows, hit movies, weather, local news, and award-winning Roku Originals.
- Home sweet home screen: Move apps around and make the Roku experience your own with a home screen that easily gets you to what you want to watch fast.
- Just keeps getting better: Get the newest apps, features, and more with automatic software updates.
- A perfect fit for any smart home: Enjoy easy voice control with Roku Voice, Siri, Alexa, or Google Assistant. Effortlessly share videos, photos, music, and more from your Apple devices to your smart TV with Apple AirPlay.
- Step up your streaming: Roku Plus Series TVs get to your entertainment quick and easy with apps that launch in a snap and our best Wi-Fi. Our intuitive interface makes exploring popular apps—plus free movies, shows, and live TV—as easy as it is fun.
- Enhanced voice remote: Search across thousands of apps with your voice and set personal shortcuts for your favorite apps. And even the deepest couch cushions are no match for the lost remote finder.
- Picture, perfected: Powered by AI, Roku Smart Picture Max cleans up incoming TV signals, optimizes them for your smart TV, and automatically refines the color and sharpness for every show, sporting event, and even subtle scene changes.
- How sound should sound: Roku Plus Series TVs with Dolby Atmos technology are designed for clear speech and louder sound. A built-in subwoofer adds a cinematic experience from your couch. Use Bluetooth Headphone Mode to listen without waking the house.
Roku Smart TV – 55-Inch Select Series, 4K HDR TV – Roku TV with Enhanced Voice Remote – Flat Screen LED Television with Wi-Fi for Streaming Live Local News,...
out of stock
Amazon.com
Features
| Part Number | 55R4C5 |
| Model | 55R4C5 |
| Warranty | For any Roku Smart Home device, Roku streaming player, Roku Streaming Stick, or Roku audio device, Roku warrants the hardware against defects in materials and workmanship under normal use for a period of one (1) year from the date of purchase ("Warranty Period") if used in accordance with the provided documentation. If Roku determines that the device’s hardware is defective during the Warranty Period, Roku’s sole obligation, and your exclusive remedy, will be to either repair or replace the unit with either a new or rebuilt device, at its option. Important information about warranty returns and replacements is available on the Roku support site. You may also return a device for any reason, subject to the terms of the applicable return policy: 1) Within thirty (30) days from the date of purchase from Roku; or 2) within the applicable return period if purchased from an authorized re-seller or distributor. Additional details regarding product returns can be found on the Roku support site. |
| Color | Black |
| Release Date | 2025-05-12T00:00:01Z |
| Size | 55" |
- A treat for the eyes: Sharp 4K brings out rich detail on our 55" flat screen TV, while colors pop off in lifelike clarity with HDR10. Roku Smart Picture cleans up incoming TV signals, optimizes them, and chooses the right picture mode.
- Explore a world's worth of TV: Dive into all kinds of entertainment and easily find your favorites or soon-to-be favorites.
- A ton of entertainment at the best price—free: Your go-to streaming destination for free entertainment, Roku has 500 plus TV channels, with live in-season shows, hit movies, weather, local news, and award-winning Roku Originals.
- Home sweet home screen: Move apps around and make the Roku experience your own with a home screen that easily gets you to what you want to watch fast.
- Just keeps getting better: Get the newest apps, features, and more with automatic software updates.
- A perfect fit for any smart home: Enjoy easy voice control with Roku Voice, Siri, Alexa, or Google Assistant. Effortlessly share videos, photos, music, and more from your Apple devices to your smart TV with Apple AirPlay.
- Seamless streaming: With fast Wi-Fi and apps that launch in a snap, Roku Select Series TVs get you to your entertainment quickly. Our intuitive interface makes exploring popular apps—plus free movies, shows, and live TV—as easy as it is fun.
- Enhanced voice remote: Search across thousands of apps with your voice and set personal shortcuts for your favorite apps. And even the deepest couch cushions are no match for the lost remote finder.
- How sound should sound: Not all TV speakers are created equal. Roku Select Series TVs are designed for clear speech and louder sound so you can catch every word. Use Bluetooth Headphone Mode to listen to your entertainment without waking the house.
- Effortlessly clean design: Make the screen the star of the show with a sleek, frameless design that modernizes your entertainment setup.
Samsung 55-Inch Class QLED Q8F 4K UHD Smart TV (2025 Model) Q4 AI Processor, 100% Color Volume with Quantum Dot, AirSlim Design, Endless Free Content,...
out of stock
Amazon.com
Features
| Part Number | QN55Q8FAAFXZA |
| Model | QN55Q8FAAFXZA |
| Warranty | 1 Year Manufacturer |
| Color | Black |
| Release Date | 2025-04-21T00:00:01Z |
| Size | 55-Inch |
- POWERS DRAMATICALLY CLEAR COLOR AND SOUND: Enjoy your movies and shows in stunning 4K, regardless of the source resolution. Plus, get the most out of what you're watching with AI-optimized color-boosted picture and audio quality, enhanced according to the type of content*
- OVER A BILLION COLORS THAT STAY TRUE, EVEN IN THE BRIGHTEST SCENES**: Appreciate every beautiful shade of color with incredible precision. The nano-sized Quantum Dots can display the entire color spectrum, **so you can admire billions of shades at any brightness level.
- SLEEK AND SLIM DESIGN FOR A LOW-PROFILE: This TV blends right into your wall with a slim design and brings clutter-free minimalism to any room.
- A WORLD OF CONTENT AT YOUR FINGERTIPS. NO SUBSCRIPTION REQUIRED: Watch 2,700+ free channels including 400+ Samsung TV Plus premium channels and on free streaming apps. Enjoy national and local news, sports, movies and more. Explore new content being added regularly.***
- BRINGS SMOOTH MOTION TO SPORTS AND TEAR-FREE GAMING: Experience smooth visuals and elite speeds for VRR gaming at up to 4K 144Hz.****
- A WIDE RANGE OF CONTRASTS FOR A DETAIL RICH, CINEMATIC EXPERIENCE: Experience immersive color and rich details for a cinematic experience. A new level of HDR that dynamically analyzes each scene to deliver enhanced brightness and contrast.*****
The Video Review of Best 55 smart tv under 400
Conclusion
When you’re looking for 55 smart tv under 400, you’ll want to keep a few things in mind. First, decide what you want to use the 55 smart tv under 400 for. Next, check the product reviews with comparision which we have listed as well. Once you’ve decided on 55 smart tv under 400 you want to buy 55 smart tv under 400, look at the reputation of the manufacturer as well. You can compare prices and quality together before you make your purchase.