When comparing Samsung KS9000 vs TCL S405 (49S405), the Slant community recommends TCL S405 (49S405) for most people. In the question“What are the best 4K TVs to use as a computer monitor?” TCL S405 (49S405) is ranked 1st while Samsung KS9000 is ranked 5th. The most important reason people chose TCL S405 (49S405) is:
This 4K TV has everything a good computer monitor needs. It has small input lag, barely noticeable motion blur, decent color accuracy, and full 4:4:4 color support. As for responsiveness, the TCL S405 is the fastest TV in its price range because of its small input lag of only 14.9 ms. Furthermore, the full pixel response time of the TCL S405 is 14.4 ms which means that the TV’s pixels can entirely change their colors in 14.4 ms - ten times faster than an average blink. Because of that, fast-moving objects don’t leave trails, so the TV does not suffer from any noticeable motion blur.
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Pro Amazing for gaming
This is one of the best screens that can be used for gaming as this 4K TV manages to deliver absolutely excellent motion control with no noticeable motion blur problems. Input lag measures around 20 ms in FullHD, 4K or 4K+HDR modes. This means that the action on the screen will not be blurred out nor will it lag behind the actual input from the buttons that you pressed on the controller or keyboard.
Pro Spectacular picture quality
KS9000 screen quality and combination of black levels, contrast and color saturation is one of the best you can get from an LCD TV. Colors are true to life and very vivid. Bright and dark areas of the screen are excellent and even the slightest details are noticeable. Combining all this - movies and video games will look outstanding, especially HDR ones.
Pro Excellent movie playback and motion interpolation
Movie watchers will be pleased by how it excellently handles 24 fps movies and delivers judder-free playback due to its 120Hz screen. Motion interpolation also works even on a 60fps signal, if it is needed. Pixel response time is 16ms, resulting in almost no motion blur in fast paced scenes.
Pro Pleasant to the eye
The bezel of this TV is only 1 cm thin and has a premium polished metal finish. It's stand has a chrome finish. The back of the TV is well-designed and has a premium finish with no visible inputs or ventilation holes.
Pro Respectable frequency response
Frequency cut-off is respectable for a TV. The low end gets cut off at only 71Hz and there is no significant drop on high tones.
Pro Speakers suitable for small rooms
The TV can get loud if needed, but it is only good enough for a small room, as the maximum volume reaches 87dB and there is no significant distortion noticeable at high volumes.
Pro Sharp, clear text in PC mode
Chroma 4:4:4 input is recognized in PC mode, so text will look sharp and clear.
Pro Above average colors
The TV uses a 10-bit panel and HDR processing, meaning it can produce 64 times more color than an 8-bit ordinary panel and covers 97% off color space range used in movie industry standards.
Pro No issues when used on sunlit rooms
The TV can produce more than 500 nits of overall brightness, so the picture can be bright even in bright, sunlit rooms, as well as can produce a short term localized brightness of more than 1000 nits letting HDR content look stunning. The glossy TV screen doesn’t have harsh reflections or purple tinting in dark areas,
Pro Very good for dark scenes and environments
The black color is deep, even and does not seem grey or bluish, resulting in wonderful dark scenes and excellent picture quality in a dark environment. Only OLED TVs can provide a better result.
Pro Excellent contrast ratio
It has a contrast ratio of 6800:1 which is excellent for a LCD TV and results in a natural and dynamic picture with deep blacks and detailed bright scenes.
Pro Sleek design
The TV’s design is sleek and modern, and should fit anywhere, even the back of the TV looks well designed.
Pro Easy to connect external devices
Samsung KS9000 has a small external box called OneConnect, that has all the HDMI and USB connections for the TV, making it easy to access them, as you do not need to reach for the back of the TV.
Pro Useful for professional work
The set supports chroma 4:4:4, meaning that small details or text displayed on the screen will remain accurate and undisturbed by the lack of color data. As the screen panel covers 97% of the color space range that is used by the film industry, it can be used as a monitor for accurate video or photo editing as well when properly calibrated.
Pro Works well as a computer monitor
This 4K TV has everything a good computer monitor needs. It has small input lag, barely noticeable motion blur, decent color accuracy, and full 4:4:4 color support.
As for responsiveness, the TCL S405 is the fastest TV in its price range because of its small input lag of only 14.9 ms.
Furthermore, the full pixel response time of the TCL S405 is 14.4 ms which means that the TV’s pixels can entirely change their colors in 14.4 ms - ten times faster than an average blink. Because of that, fast-moving objects don’t leave trails, so the TV does not suffer from any noticeable motion blur.
Pro Reasonable picture quality
The S405's VA panel has a reasonably high native contrast ratio of 4171:1, acceptable grey uniformity, excellent black uniformity, and good color accuracy.
Pro Excellent value for money
Priced below $350 , this 4K TV has enough functionality to compete against more expensive competitors. You’d be hard pressed to find a similar TV in this price range with a better picture quality and broader feature set.
Pro Good for sports
The TCL S405 is an excellent solution for those who like to watch highly dynamic content, such as sports because the TV does not suffer from noticeable motion blur effect. As the TV's pixels need only 6.3 ms to change their color 80% through; fast-moving objects don't leave visible trails on the screen. As a result, the motion blur effect is eliminated.
Pro Intuitive user interface
The S405 runs the Roku TV smart OS platform. It has broad app selection and is noticeably simpler to navigate than the Android TV, WebOS, and Tizen.
Pro Can be used up-front
Because of its reasonably small panel size and small minimum viewing distance of 2.2 ft, you can place the 43-inch model of the TCL S405 on top of your work desk and use it as a computer monitor.
Pro Displays colors accurately
Out of the box, the TLC S405 does an excellent job of color reproduction. In fact, you probably won’t even need to calibrate it.
Pro Ads-free interface
The main interface of this TV does not have advertisements. It even has a function to limit ads even in third-party applications.
Pro Good for gaming
Its well-handled motion blur, full HDR support, and low SDR and HDR input lag make it a great choice for gaming. The TCL S405 also works well with new-gen consoles like the Xbox One X and PS4 Pro because of the TV’s native 4K60 refresh rate.
Con Somewhat narrow viewing angles
Because of the display technology used, pictures will only look best in a narrow viewing angle as it significantly loses color accuracy and brightness at a wider viewing angle.
Con Troublesome to fit on some TV tables
The TV stand's large size and cumbersome design might not make it suitable for some TV tables.
Con Some harmonic distortion
Harmonic distortion is even as the volume increases, but significant distortion is present in the low-mids.
Con No support for signals above 60 Hz
The TV supports signals up to 4K resolution and 60Hz with HDR support, meaning that most formats are supported except for 1080p at 120Hz.
Con Narrow viewing angles
Due to its limited viewing angles, the TCL S405 looks good only when you sit right in front of it. This viewing angle limitation is very common among VA panels, making such TVs not suitable for group watching.
Con Not all HDR formats are supported
This TV is compatible with HDR10, but not with Dolby Vision content. While HDR10 has more content, Dolby is aggressively pushing Dolby Vision towards content makers.
Con Not suitable for bright rooms
This TV is not bright enough to fight glare when placed in a luminous environment.
Con Poor sound quality
The stereo speaker system sounds horrible and cannot get louder than 91 dB. Adding a relatively cheap speaker system or a soundbar will make a huge difference.
Con Remote lacks functionality
The TCL S405's remote is very basic and has limited functionality. It can only be used for navigation and sound level control, which is not that much since many modern TV remotes have advanced functions.