The 55A7G is a 55 inch 4K TV from Hisense. It was launched in 2021. It features a 10-bit IPS panel.
The maximum resolution it can achieve is 3840 x 2160 @ 60 Hz with a pixel density of 80 ppi.
After screen size and resolution, the very next specification of a display that will impact your viewing experience is Color Gamut.
The Hisense 55A7G features 90% DCI P3 color gamut coverage. This is equivalent to 122.73% sRGB. The color quality on this TV should be Lifelike!
Understanding Color Gamut
Color gamut spec of a display is a measure of the range of colors that the display can produce.
A TV with poor color accuracy will produce undersaturated/washed out colors that will not be pretty to look at.
It is specified in different units - sRGB,sRGB (standard RGB), NTSC 1953, DCI P3 Adobe RGB, rec.2020. It is upto the manufacturer which one they choose.
As for this TV its color gamut is specified using DCI P3.
But you don't need to worry about that, below is a chart that you can use to choose a TV with good color accuracy.
After color gamut, you should look at the static contrast specification as it influences the picture quality substantially.
Why its important?
A TV with low static contrast ratio will not produce deep enough blacks and possibly can bleed backlight as shown in the below image:The image is an example of another display, it is not this one
The above TV's static contrast is 800:1. So make sure you get a TV with a static contrast of >= 1000:1. Ofcourse, More is better.
Also, 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.
If given a choice, I will prefer a FHD TV with high contrast ratio over a 4K TV with low contrast ratio.
This TV comes with a static contrast ratio of 1200 : 1. — good enough for a TV in this range. The panel comes with local dimming backlight technology which is a plus.
Dolby Vision, HDR10, HLG (Hybrid Log Gamma) and HDR10+ are also supported on this TV, so that's a plus.
Coming to brightness, it can go as bright as 350 nits, which is powered by Direct LED (Full-Array Local Dimming) backlight.
Now if you are planning to use your TV other than watching videos — like as a PC monitor or for gaming purposes, you would want to take a TV that features the lowest input lag. For gaming however, both the input lag and response time impacts the performance.
The input lag on the Hisense 55A7G is 20 ms and its minimum response time is N/A. It is good enough for casual and non-FPS games but is not suitable for competitive or FPS games like COD.
What is Input lag ?
This lag is the latency at which your key-presses/mouse movements changes the content of your display. Though, this won't matter much if you aren't into competitive/FPS games like call of duty.
For best of both worlds, look for a TV that features an input lag and response time of < 20ms.
Ergonomics and Dimensions
Speaking of ergonomics — If you plan to wall mount the TV, you can make use of the VESA mount provided with this TV, which by the way has an interface size of 300 x 200 mm. Swivel, Tilt or Pivot features are not supported on this unit.
Vertically, the TV measures 55 inches and horizontally 48.43 inches. Speaking of thickness, it is 3 inches thick. In total the TV weighs approximately 13.0 Kgs (including stand). Without stand, it weighs 12.3 Kilograms. So plan your space accordingly.
Hardware and Audio
The internals of this TV is powered by 4-Core (2x ARM Cortex-A73 + 2x ARM Cortex-A52) CPU along with a (ARM Mali-G51) GPU.. However, Hisense didn't provide any specification about the total RAM on the TV's official specsheet.
Speaking of OS, the Hisense 55A7G runs VIDAA U5.0 Operating System.
For display connectivity, Hisense has provided three HDMI 2.0 ports and one AV Composite In 3.5 mm jack port on this TV.
For connecting USB devices, you have — 1x USB 2.0 and 1x USB 3.0. Other connectivity ports include — 1x Satellite In (F-type female), 1x Antenna (RF) (female), 1x CI+ 1.4 and 1x Ethernet RJ45 (100 Mbps).
For connecting to this TV wirelessly, you will have — a 5Ghz Wi-Fi, 2.5 Ghz Wi-Fi, Wifi-Direct and Bluetooth 5.0.
The Audio unit of this TV is powered by 2 x 10W built-in speakers.
As for power consumption, on average, it consumes 90 Watts. On standby, it takes 0.5 Watts.
It supports a power outlet of 100 V - 120 V/50 Hz - 60 Hz.