Best Gaming Monitors Under $400 (4K, HDMI 2.1, 144hz) 2021

The era of technology is evolving with every passing day and so are some of the hobbies that have been utilized as pleasure-seeking activities are now becoming part of your daily life activities. Monitors as being the face of your digital setup need to be up to date without making you broke which is why this category of best monitors under $400 is here to give you some well-known brands from all over the world.

Computers have been one of the finest and mind boggling invention of history but since it is always getting advance and getting something new out of it you also need to stay in budget. Getting a good monitor can take a toll on you with all these brands in the market and you do not know where to turn your direction towards.

With this careful selection of brands that offer long lasting trust and durability along with countless features in these products while trying to secure the top place among all. 

Best Gaming Monitors Under $400

  1. AOC AGON Gaming Monitor 24″ (AG241QX), QHD
  2. LG 27GL83A-B 27 Inch Ultragear QHD IPS Gaming Monitor, Black
  3. Alienware 25 Gaming Monitor – AW2518Hf, Full HD @ Native 240 Hz
  4. Dell S-Series 27-Inch Screen LED-Lit Gaming Monitor (S2719DGF); QHD
  5. ASUS VG279Q 27″ DP HDMI DVI Eye Care Gaming Monitor
  6. Acer Predator XB253Q Gxbmiiprzx 24.5″ FHD (1920 x 1080) IPS NVIDIA G-SYNC Compatible Gaming Monitor

1- AOC AGON Gaming Monitor 24″ (AG241QX), QHD

AOC AGON Gaming Monitor 24 (AG241QX), QHD

In the recent pandemic everyone saw the importance of home and luxury but many were afraid to buy stuff because the rates were touching the sky. AOC AGON 24 inches best gaming monitor has resolved this issue for you as it is considered one of the cheapest 1440p resolution monitor which is able to give stunning images out in the open.

The TN panel has true 8-bit screen which is used to deliver peak brightness that brings the best in your pictures by making each color visible and crystal clear. Compared to other panels this is not as high as IPS or VA panels are but you get to have a fast response time of 1ms that results in eliminating screen ghosting.

Fast paced games need to have a quick refresh rate as this machine does with its 144Hz serving the quickest of frame transitioning that can be. The more accurate color visionary is made possible with 1000:1 contrast ration on the high end resolution of 1440p.

These features make this monitor perfect for editing and graphic designing purposes or gaming as well expanding the variety of uses that are to be taken from this monitor. NVIDIA G-sync support is able to offer a smooth functionality specifically in gaming and appealing more users to itself.

With the addition of extremely useful VRR range it also consists of flexible connectivity options like HDMI ports and display ports along with DVI-D and VGA connection for creating a multi device setup. Flicker free technology is a bonus that adds a blue filter onto the screen so that your eyes can be saved from fatigue.

Main Features

  • 1440p resolution
  • 144Hz refresh rate
  • 1ms response time
  • HDMI 2.0, Display port, GVI-D, VGA ports
  • 4 year dead pixel guarantee

2- LG 27GL83A-B 27 Inch Ultragear QHD IPS Gaming Monitor, Black

LG 27GL83A-B 27 Inch Ultragear QHD IPS  Gaming Monitor, Black

What better option cold be to spend at home with your favorite equipments around you or just working from the comfort of your couch with LG 27GL83A-B ultragear monitor that comes with an IPS HD display monitoring every move and pixel along with other useful features.

1440p resolution has been everybody’s favorite through which you get to see pure and clear pixels on a wide inch screen that acquires less space on your desk and provides more room for comfortable viewing while keeping your pocket fill.

A boost of rapid 1ms response time and fastest 144Hz refresh rate is how you get to visualize low input latency, no lagging, zero screen tearing or ghosting in fast paced games with the addition of NVIDIA G-Sync technology that also makes the working capability smoother than ever.

The brightest color contrasts are able to zoom in tiny detailing in vibrant colors and is the dream of every digital content creators. It is all in the design that attracts the user at first and LG has taken full advantage of this by adding a sturdy borderless frame design on the panel with stand that is adjustable according to height and rotation.  

Moreover the textured plastic on the chassis of this device is worth the notice along the cylindrical metal rest stand. 2.3 inches of thickness of the display is quite tough material usage in order to maintain trust of the users and durability in its products by the brand.

Key Factors

  • 27’’QHD panel
  • 2560 x 1440p resolution
  • 1ms response time
  • 144 Hz refresh rate
  • NVIDIA G-Sync support
  • Ergonomically friendly design

3- Alienware 25 Gaming Monitor – AW2518Hf, Full HD @ Native 240 Hz

Alienware 25 Gaming Monitor - AW2518Hf, Full HD @ Native 240 Hz

Quick responsiveness is everything in this fast moving world where gadgets are getting smarter and faster. Alienware stays up to date which is why the 25 inches of AW2518Hf high end gaming monitor has been launched by the brand to show what true fastness is.

The blend of AMD FreeSync technology and 240 Hz of quick refresh rate eliminates distorted frames and screen tearing keeping the pace of smooth functioning go in a patterned flow. 1ms of furiously rapid response time makes it even smoother and faster in every transition and pixel movement there happens to be on the screen and not letting any glitches form on the display.

Get yourself lost in the immersive operation this monitor has to offer with a stylish and unique material used in building this beauty. With matte chrome finishing the stand has its own perks that include tilting, pivoting and swiveling the position of the panel according to your desire.

Furthermore the on-screen display is able to make gaming way easier with the addition of multi screen setup and choosing your favorite modes and themes that are already set on the monitor. For instance sniper games, flick shots and racing cars require real time strategy and precise aiming and this feature enables it.

This die cast metal body delivers all the comforts and has a composed cable management system which in return gives a clean and fine look from afar. On top of all these factors on screen timer keeps the track of time base events and usage timing whereas the FPS counter display the recent FPS on the screen to keep track of the speed accuracy.

Notable Elements

  • 240 Hz refresh rate
  • 1ms rapid response
  • 25’’ screen size
  • AMD FreeSync operation
  • On screen display option
  • Adjustable stand

4- Dell S-Series 27-Inch Screen LED-Lit Gaming Monitor (S2719DGF); QHD

Dell S-Series 27-Inch Screen LED-Lit Gaming Monitor (S2719DGF); QHD

Spending piles of money on a single gear like monitor is not a smart investment and also not a smart decision as well which is why Dell S series has launched a device that will give you every required feature in budget friendly price tag.

S2719DGF is one of those monitors that has a 27 inches of wide HD screen with 2560 x 1440p resolution known to be one of gamers’ favorite. More viewing space means better visual and in this 4k resolution better pixel quality as well.

A native refresh rate of 144 Hertz and tops up by overclocking up to 155 Hz is quite an impression made by Dell. 1miliseconds of rapid response is the key to glitch and tear free movement without smearing the frames.

AAMD FreeSync is the classic way to let your operations on this monitor work smooth and painlessly which is what pure gamers look for. A dynamic HDR enable feature is provided that entertains your picture quality to the brightest tones and clearer pixels when you zoom in for photo editing purposes.

Its flexible connectivity options is all there to flex so you can create a multi game setup or can share more than one screen with a single cable attachment.  The narrow bezel also provides a sleek design build with fully adjustable stand resting beneath the main body.

You can adjust the screen according to your will and however you like plus it is very much suitable for multi monitor setups you have seen on social media. 

Important Aspects

  • 155Hz refresh rate
  • Response time:1ms
  • 27’’ wide screen 
  • 1440p pixel resolution
  • AMD FreeSync supported
  • HDMI 1,4, 2.0, USB Port, display port 1.2
  • Fully adjusting stand

5- ASUS VG279Q 27″ DP HDMI DVI Eye Care Gaming Monitor

ASUS VG279Q 27 DP HDMI DVI Eye Care Gaming Monitor

In a world where everyone owns a good computing setup you need to get your hands on the very best of equipment with a huge features list to play with. Grab your shopping cart ready for ASUS VG279Q for this device comes in 27 inches of broad display.

Incredible refresh rate of 144 Hertz giving you a quick feedback on moving pixels without breaking out the frames. The picture in this speed is represented as soft and clear as possible and no glitches are tobe seen with this speedy frame transition.

You can flex all about its 1ms response time that operates quicker than a fox that minimizes screen smearing making a blurry image in front of you. As important as the clarity of images is the same way it is necessary that your monitor displays them with sharpness and responses quickly so the movement can be as flawless as water.

Adaptive sync support is required as a must for the gamer inside you and this technology helps in various game modes as well as removes choppy frames out of the picture. Without stuttering and input lag you can experience fluid immersive gameplay.

The more you notice the awesomeness of the display the more you get to know that the IPS panel is structured in a way that delivers 1000:1 contrast ratio that is helpful in the removal of distorted color shifting on some refreshing frames or clicks.

Shadow boost feature makes dark sports illuminate and clarifies the images which is important in shooting games as well as in editing pictures that has a dark background or bad lighting. The body design also is very adjustable through which you can manage the position of your computer. 

6- Acer Predator XB253Q Gxbmiiprzx 24.5″ FHD (1920 x 1080) IPS NVIDIA G-SYNC Compatible Gaming Monitor

Acer Predator XB253Q Gxbmiiprzx 24.5 FHD (1920 x 1080) IPS NVIDIA G-SYNC Compatible Gaming Monitor

Acer Predator XB253Q monitor speaks for itself as this device has been installed with some of the original and most useful features any user would want to see in their monitor. Coming out with 25 inches of widescreen that is fully high definition enabled.

Incredibly tempting Specs also include 1080p resolution responsible for making every picture burst with clarity and colors. Boosting with HDR 400 VESA certification is how you get to see life like tones and visuals that will make your jaw drop. This is also a useful feature for the people who used to do light sensitive work like photo or video editing.

NVIDIA G-Sync is the reason you can experience a smooth game play with the support of 240 Hertz of fire refresh rate and 1ms response time that is a killer in every competitive tournament. Moving pictures have never looked attractive as it allows the GPU to power up its dynamics for an immersive solution.

The stand itself is user friendly and can be adjusted to different viewing positions whereas a quick release design lets you remove the main body from the stand in case you want to mount it to the wall which is convenient and thoughtful step by the manufacturers.

After much bragging on the mystic speeds of this monitor there are still many options in the connection ports of the device including HDMI, display ports, and USB attachments for multiple device setups.

Notable Elements

  • Adjustable ergonomics
  • 25’’ full HD display
  • 1080p resolution center
  • NVIDIA G-sync compatible
  • 240 fast refresh rate
  • 1ms GTG response time
  • HDR 400 certified with VESA
  • Expanded connectivity

Best Gaming Monitor Under $400 Buying Guide

First things first you need to under that the very basic and immersive features will be provided in this price tag so expecting too much from a computer as if you are going to buy a $1000 product is rude in itself. 

Secondly the features that should be taken into account also depend upon the type of work you are going to take from your computer. It is not something heavy duty like gaming or hardcore editing softwares or crypto mining you will be easily able to make the right decision for yourself as you have come to the right place:

Screen measurement:

By diagonally measuring the screen you can get 24 inches to 32 inches of monitor that is wide enough to give you a vast space to do your favorite tasks or hobbies on it. The bezel design and chassis are also important to some extent and if it is a borderless design you get even more leverage over the viewing space in front of you.


This feature will determine the type of images you get to see on your screen regarding their quality and usually there is 1080p or 1440p resolution which is still a good option to bring the clarity into the pixels. If the compatibility works with other factors like frame transitioning speed this is all you need. It is difficult to get 4 K resolutions in this range but for average or daily working these pixels are good as well.

Frame transition:

Refresh rates are important to have a lag free movement of frames every time you click on something. 144Hz and 240 Hz are the most common and liked speeds in this regard which are fast enough to keep the pace up with this quickly moving world.

Sometimes you want to open an image and it first becomes blur or takes longer than usual, this problem exit if you have a low frame rate and can be very annoying at times. To get rid of this unnecessary annoyance 240Hz can be your go to option if you want to play fast paced games every now and then on your computer. 

Response time:

1ms response time to 5ms can be the average range of timing in which the less the number gets the faster you can manage your screen time. This feature will enable the jagged or tearing pixels into a smooth movement of them resulting in clear image portrayal in front of you.

FreeSync compatibility:

NVIDIA G-Sync or adaptive FreeSync, such terms may confuse you at first if you are not familiar to them but make sure you have the compatibility of these in your monitor that you have decided to buy. Due to this your gameplays will become buttery smooth eliminating choppiness away from the frames and inviting lag free function on the platter.

Connectivity options:

Having more than one option in a panel of connecting one device to another can be a blessing such as HDMI 1.4 port, 2.0 port, USB type c connection, DVI-D port, VGA port or more than one display ports version 1.4 or 1.2 is how the brands will expand the option for connecting multiple devices at once with your monitor or through it.


Keeping in mind your rice range will really help you out in determining the type of product you want and will only search in that aisle. This will also save your hassle and time by roaming into the unnecessary product lanes. A good investment is something that you will not regret later.

Leave a Comment