Display
54.6", Mini LED, 3840 x 2160 pixels
54.6
Refresh rate
48 Hz - 144 Hz (hertz)
48 Hz
Dimensions
1226 x 715 x 67 mm (millimeters)
1226
Weight
13.5 kg (kilograms)
13.5 k
Processor
Hi-View AI Engine (4K)MediaTek Pentonic 700 (MT9618)
4K
Overview
Mini LED value shapes the Hisense 55U6SF Pro, a 54.6-inch 4K Fire TV with 144 Hz support. Its 8-bit + FRC colour system supports Dolby Vision and HDR10+ Adaptive, while AMD FreeSync Premium Pro, VRR and ALLM cover gaming. Fire TV and the Hi-View AI Engine handle apps and processing; connections include 4 x HDMI 2.1 + 2 x HDMI 2.0 plus eARC. Brightness, contrast, numeric gamut coverage and the local-dimming zone count are missing, so HDR strength cannot be ranked from the sheet. The sheet lists six HDMI inputs—four HDMI 2.1 and two HDMI 2.0—so verify the count. With its stand, it is 1226 mm (millimeters) wide, so plan delivery. Buy it if you want a large Mini LED 4K TV with 48 Hz - 144 Hz gaming; skip it if verified brightness or dimming-zone data is essential.
BrandHisensePanel TypeMini LEDResolution3840 x 2160 pixelsRefresh Rate48 Hz - 144 Hz (hertz)
Key Highlights
- 55U6SF Pro pairs 54.6 in (inches) Mini LED hardware with 3840 x 2160 pixels
- 48 Hz - 144 Hz (hertz) with AMD FreeSync Premium Pro, VRR and ALLM is the main gaming advantage
- Dolby Vision IQ, Dolby Vision, HDR10+ Adaptive, HDR10+, HDR10, HLG (Hybrid Log Gamma) defines the published HDR format support
- 4 x HDMI 2.1 + 2 x HDMI 2.0 and HDMI eARC, optical digital audio cover the main source and sound connections
- Compared with 65U6SF Pro, size, stand weight and mounting requirements are the clearest practical changes
Who Should Buy the hisense 55U6SF Pro
+ Best For
High-refresh 4K entertainment
48 Hz - 144 Hz (hertz) and VRR suit compatible consoles and PCs.
Streaming without an external box
Fire TV provides the integrated app platform.
External audio systems
HDMI eARC, optical digital audio supports a soundbar or receiver route.
Planned installations
the 54.6 in (inches) screen is practical when its 1226 mm (millimeters) width and 13.7 kg (kilograms) stand weight are checked.
× Not Ideal For
Measured HDR comparisons
Brightness, contrast, gamut coverage and dimming-zone count are not published.
Desktop monitor connectivity
DisplayPort and USB-C video are not listed.
Flexible tabletop adjustment
the supplied stand has no published tilt, height or swivel range.
Unplanned furniture placement
1226 mm (millimeters) width and 298 mm (millimeters) depth need checking before delivery.
Display Performance
Refresh Rate
48 Hz - 144 Hz (hertz)
This is 55U6SF Pro's published panel range, not a motion-processing claim.
Response Time
Not published
No independent pixel-transition figure is supplied for 55U6SF Pro.
Brightness
Not published
The sheet gives no usable luminance figure.
Contrast
Not published
Black-level performance cannot be ranked numerically from the sheet.
Colour Gamut
Not published
No numeric gamut coverage is available for comparison.
HDR
Dolby Vision IQ, Dolby Vision, HDR10+ Adaptive, HDR10+, HDR10, HLG (Hybrid Log Gamma)
Brightness, contrast, gamut coverage and dimming-zone count are not published.
Gaming Performance
Refresh Rate48 Hz - 144 Hz (hertz)This sets the published high-frame-rate ceiling for 55U6SF Pro.
Response TimeNot publishedA measured transition time is not available.
VRR / Adaptive SyncVariable Refresh Rate (VRR), AMD FreeSync Premium Pro, Auto Low Latency Mode (ALLM)Compatible sources can reduce tearing and trigger game mode automatically.
GPU Requirement3840 x 2160 pixels at up to 144 Hz (hertz)A high-end GPU is appropriate for native 4K near the maximum refresh rate.
HDR & Brightness Reality
55U6SF Pro combines Mini LED, 10 bits (8 bits + FRC) and Dolby Vision IQ, Dolby Vision, HDR10+ Adaptive, HDR10+, HDR10, HLG (Hybrid Log Gamma). That is a broad compatibility list, but the sheet gives no typical brightness, peak brightness, contrast or local-dimming zone count. Without those figures, highlight intensity and blooming control cannot be ranked. Dolby Vision and HDR10+ Adaptive are useful format support, yet the Mini LED label is not proof of strong HDR by itself.
Connectivity & Ports
HDMI4 x HDMI 2.1 + 2 x HDMI 2.0These are the exact published HDMI versions for 55U6SF Pro.
DisplayPortNone listedPC video must use HDMI because 55U6SF Pro has no published DisplayPort input.
USB-CNone listedLaptop video and USB-C charging are not part of 55U6SF Pro's specification.
USB Hub1 x USB 3.0 Type-A + 1 x USB 2.0 Type-AThese Type-A ports are for media or accessories, not a full laptop dock.
Audio OutHDMI eARC, optical digital audioUse the listed return channel or dedicated output for external sound.
Real-World Use Cases
Fire TV and Hi-View AI Engine (4K) / MediaTek Pentonic 700 (MT9618) cover apps, navigation and 4K processing
Dolby Vision IQ, Dolby Vision, HDR10+ Adaptive, HDR10+, HDR10, HLG (Hybrid Log Gamma) provides the published format compatibility
48 Hz - 144 Hz (hertz), VRR, ALLM and AMD FreeSync Premium Pro suit compatible sources
HDMI eARC, optical digital audio supports a soundbar or receiver connection
Pros & Cons
Pros
- 55U6SF Pro pairs 54.6 in (inches) Mini LED hardware with 3840 x 2160 pixels
- 48 Hz 144 Hz (hertz) with AMD FreeSync Premium Pro, VRR and ALLM is the main gaming advantage
- Fire TV and Hi-View AI Engine (4K) / MediaTek Pentonic 700 (MT9618) provide integrated streaming and processing
- 4 x HDMI 2.1 + 2 x HDMI 2.0 plus HDMI eARC, optical digital audio cover the main home-entertainment connections
- Compared with 65U6SF Pro, size, stand weight and mounting requirements are the clearest practical changes
Cons
- Brightness, contrast, gamut coverage and dimming-zone count are not published
- No DisplayPort or USB-C video input is listed
- The fixed stand provides no tilt, height or swivel adjustment
- Response time is not published
Score & Ratings
8.2/10
Great
Television Identity & Market
6
| Specification | Value |
|---|---|
| Brand | Hisense |
| Series | U6SF Pro |
| Model | 55U6SF Pro |
| Model Alias | 2026 Hisense 55" Class U6 Pro ULED MiniLED 4K Fire TV |
| Model Year | 2026 |
| Available Colors | Black |
Screen Geometry & Format
4
| Specification | Value |
|---|---|
| Screen Size | 54.6 in (inches) |
| Marketed Screen Size | 54.6 in (inches) |
| Aspect Ratio | 16:9 |
| Screen-to-Body Ratio | 93.89 % (percent) |
Panel Architecture & Light Control
3
| Specification | Value | What It Means |
|---|---|---|
| Panel Type | Mini LED | Mini LED determines the basic black-level, viewing-angle and light-control behaviour buyers can expect from 55U6SF Pro. |
| Panel Bit Depth | 10 bits (8 bits + FRC) | 10 bits (8 bits + FRC) supports the listed colour gradation; it does not guarantee accurate factory calibration. |
| Display Colors | 1.07 billion colors / 30-bit |
Surface Treatment & Viewing Layer
1
| Specification | Value |
|---|---|
| Screen Coating | Anti-glare/MatteHisense ULEDHi-QLED Mini LEDFull Array Local DimmingAnti-Reflection |
Resolution, Scaling & Signal
4
| Specification | Value |
|---|---|
| Native Resolution | 3840 x 2160 pixels |
| Pixel Density | 80 ppi (pixels per inch) |
| Pixel Pitch | 0.315 mm (millimeters) |
| HDCP Support | Yes |
◑
Luminance, Blacks & Contrast
1
| Specification | Value |
|---|---|
| Viewing Angles | 178° / 178° |
Color Reproduction & Calibration
1
| Specification | Value |
|---|---|
| Wide Color Gamut | Yes |
HDR Formats & Tone Mapping
4
| Specification | Value | What It Means |
|---|---|---|
| HDR Support | Dolby Vision IQDolby VisionHDR10+HDR10HLG |
Dolby Vision IQ, Dolby Vision, HDR10+ Adaptive, HDR10+, HDR10, HLG (Hybrid Log Gamma) lets 55U6SF Pro accept these formats, while missing luminance data limits any claim about actual HDR impact. |
| IMAX Enhanced | Yes | |
| Dynamic Tone Mapping | Yes | |
| Filmmaker Mode | Yes |
Motion Processing & Response
2
| Specification | Value |
|---|---|
| Maximum Refresh Rate | 48 Hz - 144 Hz (hertz) |
| Motion Processing | Motion Estimation Motion Compensation (MEMC) |
Console, VRR & Game Tools
6
| Specification | Value | What It Means |
|---|---|---|
| Variable Refresh Rate | Variable Refresh Rate (VRR) | |
| Auto Low Latency Mode | Auto Low Latency Mode (ALLM) | |
| High Frame Rate | Yes | |
| AMD FreeSync | AMD FreeSync Premium Pro | AMD FreeSync Premium Pro gives 55U6SF Pro a named adaptive-sync tier for compatible AMD and console sources. |
| Game Mode | Yes | |
| Game Bar | Yes |
Picture Intelligence & AI
1
| Specification | Value |
|---|---|
| Filmmaker Mode | Yes |
Broadcast Tuners & Reception
5
| Specification | Value |
|---|---|
| Built-In TV Tuner | Yes |
| Tuner Configuration | Analog (NTSC/PAL/SECAM)ATSCClear QAM |
| Analog Tuner | NTSC / PAL / SECAM |
| North American Digital Tuner | ATSC |
| Clear QAM | clear qam |
Compute, Memory & Storage
2
| Specification | Value |
|---|---|
| Processor Brand Name | Hi-View AI Engine (4K) / MediaTek Pentonic 700 (MT9618) |
| CPU Architecture | 4 |
Smart Platform & System
2
| Specification | Value | What It Means |
|---|---|---|
| Smart TV | Yes | |
| Operating System | Fire TV | Fire TV supplies 55U6SF Pro's streaming apps and smart-TV interface without an external player. |
HDMI Signal Interface
10
| Specification | Value |
|---|---|
| Total HDMI Ports | 6 |
| HDMI 2.1 Ports | 4× HDMI 2.1 |
| HDMI 2.0 Ports | 2× HDMI 2.0 |
| HDMI CEC | Yes |
| Audio Return Channel | Yes |
| Enhanced Audio Return Channel | Yes |
| Auto Low Latency Mode | Auto Low Latency Mode (ALLM) |
| High Frame Rate | Yes |
| Variable Refresh Rate | Variable Refresh Rate (VRR) |
| HDCP Support | Yes |
USB, Audio & Legacy I/O
5
| Specification | Value |
|---|---|
| Total USB Ports | 2 |
| USB-A 2.0 Ports | 1× USB 2.0 |
| USB-A 3.0 Ports | 1× USB 3.0 |
| Ethernet Port | 1× RJ45 |
| Optical Audio Output | 1× S/PDIF |
Wireless, LAN & Casting
6
| Specification | Value |
|---|---|
| LAN | Yes |
| Wi-Fi | Wi-Fi 8 |
| Wi-Fi Standards | 802.11a |
| Bluetooth | Bluetooth 5.3 |
| Wi-Fi Direct | Yes |
| DLNA | Yes |
Speaker Layout & Output
7
| Specification | Value |
|---|---|
| Built-In Speakers | Yes |
| Speaker Configuration | 2.1 CH |
| Speaker Channels | 2.1 CH |
| Built-In Subwoofer | Yes |
| Subwoofer Configuration | 1 x 20 W (watts) |
| Total Audio Output | 40 W |
| Total Speaker Output | 40 W |
Sound Formats & Enhancement
2
| Specification | Value |
|---|---|
| Dolby Atmos | Yes |
| DTS Virtual:X | DTS Virtual: X |
Panel-Only Size & Mass
4
| Specification | Value |
|---|---|
| Width Without Stand | 1226 mm (millimeters) |
| Height Without Stand | 715 mm (millimeters) |
| Depth Without Stand | 67 mm (millimeters) |
| Weight Without Stand | 13.5 kg (kilograms) |
Assembled TV Size & Mass
4
| Specification | Value |
|---|---|
| Width With Stand | 1226 mm (millimeters) |
| Height With Stand | 756 mm (millimeters) |
| Depth With Stand | 298 mm (millimeters) |
| Weight With Stand | 13.7 kg (kilograms) |
Exterior Styling & Stand Footprint
1
| Specification | Value |
|---|---|
| Chassis Color | Black |
Wall Mounting & Installation
3
| Specification | Value |
|---|---|
| VESA Mount | 200 x 300 mm |
| VESA Interface | 200 x 300 mm |
| VESA Size | 200 x 300 mm |
Electrical Load & Efficiency
6
| Specification | Value |
|---|---|
| Power Input | 110 V - 120 V (volts) |
| AC Frequency | 50 Hz - 60 Hz (hertz) |
| Typical Power Consumption | 100 W (watts) |
| Average Power Consumption | 100 W (watts) |
| Maximum Power Consumption | 220 W (watts) |
| Standby Consumption | 0.5 W (watts) |
Picture Feature Inventory
5
| Specification | Value |
|---|---|
| Wide Color Gamut | Yes |
| Anti-Reflection | Yes |
| Filmmaker Mode | Yes |
| IMAX Enhanced | Yes |
| Dynamic Tone Mapping | Yes |
Gaming Validation & Compatibility
3
| Specification | Value | What It Means |
|---|---|---|
| Game Bar | Yes | |
| ALLM | Auto Low Latency Mode (ALLM) | Auto Low Latency Mode (ALLM) lets a compatible console request low-latency mode automatically, reducing manual menu changes. |
| VRR | Variable Refresh Rate (VRR) |
Regulatory & Industry Approvals
2
| Specification | Value |
|---|---|
| CE | Yes |
| IMAX Enhanced | Yes |
In-the-Box Components
1
| Specification | Value |
|---|---|
| Screen Size | 54.6 in (inches) |
Frequently Asked Questions
01 How does 55U6SF Pro differ from 65U6SF Pro? +
Compared with 65U6SF Pro, size, stand weight and mounting requirements are the clearest practical changes. The core family platform remains closely related, so physical scale and any listed panel or processor difference matter most.
02 What weakens the HDR case for 55U6SF Pro? +
Brightness, contrast, gamut coverage and dimming-zone count are not published. Format support confirms compatibility, but it does not replace brightness, contrast and dimming measurements.
03 Which gaming hardware makes sense for 55U6SF Pro? +
The panel is listed at 48 Hz - 144 Hz (hertz) with AMD FreeSync Premium Pro and ALLM. Native 4K near the top rate requires a capable console or high-end PC.
04 Which ports deserve attention on 55U6SF Pro? +
The source lists 4 x HDMI 2.1 + 2 x HDMI 2.0 and 1 x USB 3.0 Type-A + 1 x USB 2.0 Type-A. The published external-audio routes are HDMI eARC, optical digital audio, while DisplayPort and USB-C video are absent.
05 What installation numbers matter for 55U6SF Pro? +
With the stand it is 1226 mm (millimeters) wide, 298 mm (millimeters) deep and 13.7 kg (kilograms). Wall mounting requires the published 200 x 300 mm pattern and a bracket rated for the panel weight.
Reviews
DISPLAYINPUT · INDEPENDENT · SPEC-BASED · NO SPONSORED PLACEMENT
SHEET № 55U6SF PRO