The QN55QN90B is a 55 inch 4K TV from Samsung, launched in the year 2022. It features a True 10-bit IPS panel with Anti-glare/Matte finish. The max. resolution it can achieve is 3840 x 2160 with a refresh rate of 120 Hz and a pixel density of 80 ppi.
After screen size and resolution, the very next specification of a display that impacts picture quality is its Color Gamut.
This TV comes with a DCI P3 color profile coverage of 100%. Incase you're wondering, this is equivalent to 136.36% sRGB. The color accuracy on this TV should be Lifelike!
What Color Gamut means ?
Color gamut spec of a display indicates the range of colors that it can show.
A TV with poor color reproduction will produce washed out colors that will spoil your immersive experience.
It is specified in different units - sRGB,sRGB (standard RGB), NTSC 1953, DCI P3 to name a few. It is upto the manufacturer which one they choose.
As for this TV its color gamut is specified in DCI P3.
But don't worry, here is a chart that will help you choosing a TV with good color accuracy.
Other than color accuracy, you should look at the static contrast specification as it impacts the picture quality substantially.
Understanding Static Contrast
Static contrast ratio of a TV corresponds to its Black levels. A TV with low static contrast ratio (<1000:1) will not produce deep blacks. Moreover, such TVs often suffer from backlight bleeds such as this:The image is an example of another display, it is not this one
Needless to say, this will affect your experience, especially in a dark room.
Note that, static contrast ratio and resolution go hand in hand when it comes to details. To put it into perspective, a TV with low contrast ratio will produce less shades of colors, thus lesser detail overall.
This TV comes with a static contrast ratio of 8000:1., well enough to display deep blacks and eye-catching visuals. For the record, it also comes with local dimming technology which is a plus.
HDR10, HDR10+, HDR10+ Adaptive, HDR10+ Gaming, HLG (Hybrid Log Gamma) and Quantum HDR 32X are also supported on this TV, so that's a plus.
As for brightness, it is capable of producing a peak brightness of 250 nits. The panel of this TV is powered by Mini LED backlight technology.
If you aren't into gaming, you can ignore these specifications. But if you are also going to use the TV for playing games or use it as a PC monitor, you should take a TV that features the lowest input lag and response time.
The input lag on this TV is 6 ms and its minimum response time is N/A. Gamers will love this TV.
What is Input Lag and Why it matters ?
This lag is the amount of time at which your inputs changes the content of the screen. For casual Non-FPS games, input lag doesn't matter much.
For best of both worlds, get a TV that features an input lag and response time of < 20ms.
Dimensions and Ergonomics
The width of this TV is 48.32 inches while its height is 30.24 inches. It is 1 inches thick.
It weighs 17.7 Kgs, another 4.2 kgs if you include stand. So plan your space accordingly.
Now, coming to ergonomics — a VESA mount with interface size of 400 x 300 mm is provided for wall-mounting. However, there is no Swivel, Tilt or Pivot feature support in this TV.
Hardware and Audio
The Samsung QN55QN90B is powered by Quad Core CPU. There is no information about the RAM on this TV.
The UI on this TV is powered by Tizen 6.5 Operating System.
For display connectivity, Samsung has provided three HDMI 2.0 ports and one HDMI 2.1 port on this TV.
For connecting USB devices, it includes two USB 2.0 ports. Other connectivity ports include — 1x RS232 (C), 1x Cable/Antenna In (F-type female) and 1x Ethernet RJ45.
Wireless connectivity options on this TV include a 5Ghz Wi-Fi, 2.5 Ghz Wi-Fi, Wifi-Direct, Bluetooth and DLNA.
Now, for audio, Samsung has provided 4 x 5W built-in speakers on the QN55QN90B. It also comes with a built-in subwoofer. So you may not have to invest on any external sound system.
As for power usage, it consumes 80 watts on average and 0.5 watts on standby.
For powering this unit, you'll need either a 110V or 220V outlet @ 50Hz-60Hz.