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Hisense - 55" Class U6 Series MiniLED QLED UHD 4K HDR Smart Fire TV (2026)

Model: 55U6SF
SKU: 6673651
Sold byBest Buy

Customers are saying

Customers are delighted by the superb picture quality. They also appreciate the easy setup and seamless connectivity, noting how it pairs flawlessly with devices like the Roku remote.

Generated by AI based on customer reviews.
See it in-store: Roseville has a demo model on display.

Highlights

Features
  • Hi-QLED MiniLED

    Take the next step with more precise control over brightness and contrast. Whether you're watching fast-moving sports, daytime TV, or movie nights, MiniLED improves how light is managed across the screen and brings out more detail in every scene. Hi-QLED technology delivers richer, more consistent color for an all-around better viewing experience.

  • Native 144Hz Refresh Rate

    From fast plays to big finales, motion stays sharp so you never miss a moment. Native 144Hz refresh performance keeps movement fast and sharp, reducing blur during gameplay and live sports. The quick response helps you stay in control during competitive gaming while making rapid camera shots in shows and movies easier to follow.

  • Anti-Reflection & Glare-Free

    Enjoy every scene, even in bright rooms. The screen reduces reflections, keeping your view clear and distraction‑free.

  • Dolby Vision & Dolby Atmos

    With Dolby Vision and Dolby Atmos, feel closer to the action with picture and audio that work together for a truly immersive experience.

  • AI Picture

    No settings to fiddle with. Just better viewing, every time. With built-in AI, your TV reads the room and tweaks brightness and color for you.

  • AI Smooth Motion (Motion Rate 480)

    No blur, no choppiness — just smooth, sharp motion from the first frame to the last. Whether it's live sports, action movies, or gaming, every fast-moving moment stays easy to watch. Powered by motion rate 480.

  • Hi - QLED Color

    Hi-QLED technology makes every shade, scene and skin tone look true-to-life, rendering every scene convincingly real, just as the creator intended.

  • Total HDR Solution

    Every scene the way it was meant to look. Brighter highlights, deeper blacks, and more detail — whether you're watching a sunny landscape or a dimly lit thriller, the picture always delivers. Supports Dolby Vision IQ, HDR10+ Adaptive, HDR10, and HLG.

  • Game Booster 240

    Stay one step ahead with smoother, more responsive gameplay powered by VRR up to 240Hz*. Fast-moving action looks clearer with less blur and lag, helping you react quicker and play with confidence—whether you're in competitive matches or fast-paced adventures.

  • No More Endless Scrolling

    Fire TV knows what you’re looking for, with smart recommendations, watchlists and it know how to pick up where you left off. Use your voice to ask Alexa+ what to watch next.

  • Filmmaker Mode

    See and hear every movie exactly the way the director meant you to. Every color, every sound, every frame — nothing added, nothing lost.

  • AI Light Sensor

    Intelligent brightness that adapts to your environment. By detecting ambient light and adjusting the backlight in real time, the TV maintains optimal picture quality for comfortable viewing at any time of day.

  • Do More With Our TV

    Talk naturally to find what to watch across your apps, manage your smart home, or dive into virtually any topic.

  • Watch It All Happen

    Manage your home from your TV. View cameras, adjust lights, and control comfort while you watch. See activity feeds and up to four live cameras on screen.

  • AI Sports Mode

    The TV instantly recognizes sports content and adjusts picture and sound settings for the action. Enjoy smoother motion, clearer details, and boosted crowd audio that recreates the excitement of being in the stadium.

  • 4K UltraHD Resolution & AI 4K Upscaler

    Whatever you watch, the picture gets better. Shows, movies, and streaming content are automatically sharpened and cleaned up — so everything looks closer to 4K, even if it wasn't shot that way.

  • AMD FreeSync Premium

    Gaming the way it should feel — smooth, responsive, and totally immersive. The TV automatically syncs with your console or PC, so there's no lag and no more images splitting across the screen mid-action.

  • Apple AirPlay 2 & Apple Home

    With AirPlay 2 and Apple Home compatibility, you can effortlessly stream content from your Apple devices and control your TV as part of your smart home—no extra setup required.

  • 2 Year Warranty

    Get extra peace of mind with an extended 2-year limited warranty—added coverage that gives you more confidence in every viewing experience.

See all features
Specifications
  • Display Type
    LED
    Resolution
    4K (2160p)
    Screen Size Class
    55 inches
    High Dynamic Range (HDR)
    Yes
    High Dynamic Range Format
    Dolby Vision, HDR 10+, HDR 10, Hybrid Log-Gamma (HLG)
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Reviews

Rating 4.9 out of 5 stars with 21 reviews

5 star rating. 18 reviews4 star rating. 3 reviews
95% would recommend to a friend
Customers are sayingCustomers are delighted by the superb picture quality. They also appreciate the easy setup and seamless connectivity, noting how it pairs flawlessly with devices like the Roku remote.
This summary was generated by AI based on customer reviews.
  • Picture Quality (14)
  • Ease of Setup (7)
  • Connectivity (3)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

From the manufacturer

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Pros for Hisense - 55" Class U6 Series MiniLED QLED UHD 4K HDR Smart Fire TV (2026)
Picture Quality, Connectivity, Ease of SetupPicture Quality, Setup Ease, Size, Weight, DesignPicture Quality, Brightness, Refresh Rate, Setup Ease, Black LevelPicture Quality, Refresh Rate, Setup Ease, Brightness, Connectivity
Cons for Hisense - 55" Class U6 Series MiniLED QLED UHD 4K HDR Smart Fire TV (2026)
There were no cons for this productConnectivity, Brightness, Port Quantity, Remote Control, User InterfaceViewing AngleViewing Angle, Operating System

Specs

Questions & Answers
  • What is the nit rate for this t.v.?

    Hello Hisense Customer, Thank you for your interest in the Hisense 65U6SF. This model features a peak brightness of 1,000 nits. Thank you, Harley, with the Hisense Support Team.

    Answered by HisenseProductExpert
    HisenseProductExpert response
  • Does this TV have an ATSC 3.0 tuner

    Hello Hisense Customer, thank you for your interest in the Hisense 55U6SF. This model features a standard digital TV tuner that supports ATSC (1.0), NTSC, and Clear QAM for standard over-the-air and digital cable channels. Thank you, Harley with the Hisense Support Team.

    Answered by HisenseProductExpert
    HisenseProductExpert response
  • Can the tv be turned on without remote control

    Hello Hisense Customer, Thank you for your interest in the Hisense 55U6SF. This model features a physical power button that is located at the bottom center of the unit. Thanks again, Harley with the Hisense Support Team.

    Answered by HisenseProductExpert
    HisenseProductExpert response
  • What is the difference between this, the 55U6SF, and the 55U6SF PRO?

    Hello Oliver, Thank you for your interest in the Hisense 55U6SF. The Hisense 55U6SF‑Pro and the Hisense 55U6SF share several advanced features, but the Pro version is designed with higher‑end performance and display technology. The Pro model incorporates Mini‑LED backlighting with Hi‑QLED Color and achieves up to 1200 nits' peak brightness, making it superior for HDR content with Pro‑HDR compatibility. It also includes DTS Virtual:X audio in addition to Dolby Atmos, enhancing the sound experience. By contrast, the standard 55U6SF uses QLED Color without Mini‑LED, supports Quantum HDR, and emphasizes viewing comfort with an Anti‑Glare Low Reflection panel and Filmmaker Mode for cinematic accuracy. Both models feature a native 144Hz refresh rate with AI Smooth Motion, 144Hz Game Mode Pro, and the Hi‑View AI Engine, but the Pro version is tailored for higher brightness and more immersive audio, while the standard model focuses on reducing glare and preserving director‑intended visuals. Thanks again, Harley with the Hisense Support Team.

    Answered by HisenseProductExpert
    HisenseProductExpert response
  • My 55 inch Hisense tv just shut itself off today I keep try to turn it back on and it blinks that red at bit then shuts back off. It almost came back on one time thought it was going to be ok but it finally just shut itself back off. Why?

    Hello Victor, thank you for choosing the Hisense 55U6SF and for sharing your feedback with us. We are truly sorry to hear that the unit is power cycling. This isn't the home theater experience we want for our customers. But rest assured, this model is covered by a one-year manufacturer warranty. Please reach out to our dedicated support team directly at 1-888-935-8880 or via email at Service@Hisense-usa.com so that we can promptly address and resolve the issue for you. Thank you, Harley with the Hisense Support Team.

    Answered by HisenseProductExpert
    HisenseProductExpert response
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