Samsung · Television Reviews · U7900F

Samsung U7900F Review: A Basic 4K Samsung TV With Useful Smart Features

The 2025 Samsung U7900F is an entry-level Crystal UHD television built around a 4K 60 Hz LED-backlit LCD display. It delivers colorful everyday viewing, HDR10+ support, VRR, ALLM and Samsung’s full Tizen smart platform, but it lacks local dimming, Dolby Vision and premium glare reduction. With only two HDMI inputs and a basic 20-watt speaker system, it is best suited to casual streaming, secondary rooms and shoppers prioritizing screen size over advanced picture hardware.

Video summary

Tech Steve unboxes and sets up the 55-inch U7900F, examines its basic feet, simple remote and limited connections, and demonstrates setup through Samsung SmartThings. His glare test shows clearly visible room reflections, making the television less suitable for rooms with several windows or bright lights. Tizen provides profiles, downloadable apps, connected-device controls, Samsung gaming features and phone-based Bixby voice commands. During movie demonstrations, Steve describes the picture as colorful and pleasing for a basic Samsung TV, while noting slightly gray-looking dark areas and the absence of inky black levels because there is no local dimming. He also demonstrates Dynamic, Standard and Eco picture profiles and discusses HDR10+, HLG and 4K upscaling.

Bottom line

Tech Steve Takeaway

Buy the U7900F if you want an affordable Samsung with punchy color, a broad selection of screen sizes and a full smart-TV platform. Choose a higher-tier model if deep black levels, strong glare control, 120 Hz gaming or more than two HDMI inputs matter to you.

The Samsung U7900F is a 2025 LED-backlit LCD television with 3840 x 2160 resolution, a native 60 Hz panel and Samsung’s Crystal Processor 4K. It supports HDR10+, VRR, ALLM, HDMI eARC, AirPlay and Google Cast. Its entry-level hardware omits local dimming, Dolby Vision, premium glare reduction and 120 Hz input support.

Picture quality

The U7900F produces a colorful, punchy image that works well for streaming television and casual movie viewing. Its Crystal Processor 4K scales compatible lower-resolution sources for the 3840 x 2160 panel. The major limitation is the absence of local dimming, so dark scenes can look gray instead of delivering the deep blacks available from more advanced LCD or OLED televisions. The screen also produced noticeable reflections during the room-light glare demonstration.

HDR performance

HDR10, HDR10+ and HLG are supported, but Dolby Vision is not. HDR content benefits from the television’s color processing, although the lack of local dimming limits dark-scene contrast and highlight control. No measured or manufacturer-rated peak brightness figure is available, so this should not be treated as a high-brightness HDR television.

Gaming performance

The U7900F supports VRR and ALLM for compatible consoles, along with Samsung Gaming Hub for supported cloud-gaming services. Its physical panel and maximum input rate at native 4K resolution are limited to 60 Hz. Motion Xcelerator 60Hz is processing rather than a 120 Hz or reduced-resolution 240 Hz mode. This makes the TV appropriate for casual 4K 60 Hz gaming, but not the best choice for players seeking 4K 120 Hz support.

Motion handling

The native panel refresh rate is 60 Hz, with a verified maximum of 60 Hz at 3840 x 2160. Samsung’s Motion Xcelerator 60Hz processing is intended to improve motion clarity, but it does not increase the panel’s physical refresh rate. Fast sports and games therefore will not have the clarity of a native 120 Hz television.

Sound quality

Built-in audio consists of a 2.0-channel, 20-watt speaker system with Object Tracking Sound Lite. Q-Symphony can combine the television speakers with a compatible Samsung soundbar, while HDMI eARC provides the preferred external-audio connection. Dolby Atmos is not supported by the TV’s built-in audio specification, and there is no optical digital-audio output. On the demonstrated 55-inch model, the low screen clearance prevented Steve’s compact Samsung soundbar from fitting beneath the television without blocking part of the screen.

Smart TV experience

Samsung’s One UI Tizen platform supplies streaming apps, user profiles, Samsung TV Plus, connected-device management and Gaming Hub access. SmartThings can simplify setup and turn a phone into a remote with Bixby voice control. Apple AirPlay and Google Cast are supported, along with Wi-Fi, Ethernet and Bluetooth. Accessing downloadable apps and some services requires a Samsung account.

Calibration notes

Filmmaker Mode is available for viewers seeking a more restrained presentation. In the demonstration, Dynamic increased apparent brightness and color intensity, Standard produced a less aggressive image and Eco reduced output to conserve energy. No model-specific calibration measurements are included.

What we like

Colorful 4K presentation that works well for everyday streaming and television viewing
Eight verified screen sizes ranging from 43 to 85 inches
HDR10+, HDR10 and HLG format support
VRR and ALLM provide useful gaming conveniences within the 4K 60 Hz limit
Full Tizen smart platform with Samsung TV Plus and Gaming Hub
Apple AirPlay, Google Cast, Bluetooth, Wi-Fi and Ethernet connectivity
HDMI eARC and Q-Symphony support simplify compatible soundbar integration

What to consider

The native panel and maximum 4K input rate are limited to 60 Hz
No local dimming, resulting in gray-looking dark areas instead of deep blacks
Reflective screen is not well suited to rooms with many windows or lights
Only two HDMI inputs are available
Dolby Vision and built-in Dolby Atmos support are absent
No optical digital-audio output
Basic 2.0-channel, 20-watt speaker system
Low clearance on the demonstrated 55-inch model may prevent some soundbars from fitting beneath the screen

Tech Steve verdict

The Samsung U7900F is a practical entry-level choice for shoppers who want a familiar Samsung interface, colorful 4K playback, HDR10+ and basic gaming conveniences across sizes from 43 to 85 inches. Its strongest benefits are the broad size range, VRR and ALLM support, useful casting options and straightforward integration with compatible Samsung soundbars. The tradeoffs are substantial for demanding viewers: the 60 Hz panel has no local dimming, the reflective screen is not ideal for bright rooms, Dolby Vision is absent, and two HDMI inputs can fill quickly. Buy it for casual streaming, bedrooms, garages or a large screen on a controlled budget. Move to a 120 Hz model with local dimming or OLED technology for serious gaming, stronger HDR and better dark-room movie performance.

Choose your size

Size-by-size buying guide

Brightness measurements are shown only for the exact size researched. Recommended distance uses a 30°-40° field-of-view range for mixed TV and cinematic viewing.

Size / model	Panel / finish	Refresh	Dimming zones	Peak HDR	VESA	Feet width	Viewing distance	Buy
43"UN43U7900FFXZA	LED-backlit LCD	60 Hz native	—	No size-specific test	200 x 200	24.1 in	4.9-6.7 ft	—
50"UN50U7900FFXZA	LED-backlit LCD	60 Hz native	—	No size-specific test	200 x 200	29.4 in	5.7-7.8 ft	Check price ↗
55"UN55U7900FFXZA	LED-backlit LCD	60 Hz native	—	No size-specific test	200 x 200	32 in	6.3-8.6 ft	Check price ↗
58"UN58U7900FFXZA	LED-backlit LCD	60 Hz native	—	No size-specific test	200 x 200	34.8 in	6.6-9.0 ft	Check price ↗
65"UN65U7900FFXZA	LED-backlit LCD	60 Hz native	—	No size-specific test	200 x 200	39.6 in	7.4-10.1 ft	Check price ↗
70"UN70U7900FFXZA	LED-backlit LCD	60 Hz native	—	No size-specific test	400 x 300	44.2 in	8.0-10.9 ft	Check price ↗
75"UN75U7900FFXZA	LED-backlit LCD	60 Hz native	—	No size-specific test	400 x 300	49.2 in	8.6-11.7 ft	Check price ↗
85"UN85U7900FFXZA	LED-backlit LCD	60 Hz native	—	No size-specific test	400 x 300	55.6 in	9.7-13.2 ft	Check price ↗

What makes it different

Exclusive technology

Crystal Processor 4K

Samsung's picture processor performs color mapping and scales lower-resolution sources for the 4K panel.

4K Upscaling

Processes compatible lower-resolution video so it can be displayed at the television's 3840 x 2160 output resolution.

MetalStream Design

Samsung's thin-bezel cabinet design uses a metal exterior and separate basic feet.

Motion Xcelerator 60Hz

Samsung motion processing intended to improve clarity on the series' 60 Hz panel; it does not increase the native or maximum 4K refresh rate beyond 60 Hz.

Color Booster

Samsung picture processing that adjusts color presentation without using a quantum-dot panel.

Object Tracking Sound Lite

Uses the two-channel speaker system and virtual processing to make sound placement follow on-screen action.

Q-Symphony

Allows the TV speakers to operate with a compatible Samsung soundbar instead of automatically muting the television speakers.

Samsung Knox Security

Samsung's television security platform protects account information, applications and supported connected-device data.

Samsung Gaming Hub

Provides access to supported cloud-gaming services through the television; internet access, subscriptions and a compatible controller may be required.

Samsung TV Plus

Samsung's account-dependent free, ad-supported streaming television service.

Specifications

Audio

Speaker System2.0-channel

Speaker Count2

Included SubwooferNo

Included Rear SpeakersNo

Audio Output Watts20 W

Dolby AtmosNo

Dolby Audio FormatsDolby Audio

Room CorrectionNo

Dialogue EnhancementNo

Voice AssistantsBixby, Amazon Alexa, Google Assistant

Optional AccessoriesCompatible Samsung Q-Series, S-Series, B750F or B650F soundbar for Q-Symphony, Samsung SlimFit Cam, Samsung Zigbee/Thread dongle, Compatible VESA wall mount