Best 40 Inch 4k Monitor

Peter | 16-03-2025

Looking for some of the best Best 40 Inch 4k Monitor? As you may know, there are dozens of brands available in the market such as SAMSUNG,INNOCN,Dell,LG,Deco Gear and some come with vastly different price tags. Let us help you out here – we have handpicked the Best 40 Inch 4k Monitor for you.

To compile our list, we’ve researched and evaluated a range of the best-selling products on the market. We recommend SAMSUNG Best 40 Inch 4k Monitor as our top pick because of its exceptional overall performance. Want to explore more options? Read on! There’s also a buying guide to help you make a wise shopping decision.

Editor's Choice
SAMSUNG 43-Inch M7 (M70D) Series 4K UHD Smart Monitor, Speakers, HDR10, USB-C, Multiple Ports,
SAMSUNG 43-Inch M7 (M70D) Series 4K UHD Smart Monitor, Speakers, HDR10, USB-C, Multiple Ports,
Premium Pick
INNOCN Ultrawide Monitor 40
INNOCN Ultrawide Monitor 40" WQHD 3440 x 1440p 144Hz Monitor AMD FreeSync Premium HDR400 21:9
Budget Pick
SAMSUNG 43
SAMSUNG 43" Odyssey Neo G7 Series 4K UHD Smart Gaming Monitor, 144Hz, 1ms, VESA Display HDR600,

Top 10 Best 40 Inch 4k Monitor

We researched and compared the top products in the Best 40 Inch 4k Monitor category to provide you with these recommendations.

1. SAMSUNG 43-Inch M7 (M70D) Series 4K UHD Smart Monitor, Speakers, HDR10, USB-C, Multiple Ports,

SAMSUNG 43-Inch M7 (M70D) Series 4K UHD Smart Monitor, Speakers, HDR10, USB-C, Multiple Ports,
9.8

Samsung

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  • INSTANT ACCESS TO OTT CONTENT: Stream OTT content directly from monitor or tune into Samsung TV Plus to get live TV channels and on-demand content at zero cost
  • 1 MOUSE & KEYBOARD ACROSS DEVICES: Maximize multitasking by controlling multiple devices with one mouse and keyboard; Seamlessly drag & drop content across the Smart Monitor, a Galaxy Tab & Galaxy mobile device, streamlining your workflow
  • ENJOY CONTENTS IN VIVID DETAIL: Crystal clear video; 4K UHD resolution brings your content to life with vivid clarity; Lose yourself while exploring nuanced settings with incredible detail
  • CONNECT w/ CONVENIENCE: With USB-C, HDMI & USB-A ports, you can connect to the Smart Monitor without adapters; Charge devices, transmit data & make the most out of your multiscreen setup - or do all at once - thanks to the 4 available ports
  • WHERE GAMING COMES TOGETHER: Samsung Gaming Hub is the ultimate home for gaming; Instantly play the biggest games from top streaming partners, with no PC or console needed; Discover new games or replay old favorites all in one place
  • SOLAR POWERED CONTROL: The SolarCell Remote, featuring a solar charging panel on its back, eliminates the need for disposable batteries, making it an eco-friendly choice
  • DESIGNED FOR LOW VISION USERS: Designed with accessibility in mind, it comes equipped with tools that help low vision users see and use the screen more easily, including screen magnification, color switching and audio descriptions for TV settings
  • EASY SWITCHING BETWEEN MONITOR & PC: Enjoy better control when switching between your PC and Smart Monitor's home screen controls; With the Easy Setting Box installed on your PC, move between these configurations with just one mouse and keyboard
  • EASIER ACCESS TO YOUR WORK TOOLS: Access & control your PC remotely or work directly on the monitor; Embedded productivity apps like Microsoft 365 let you bypass the PC for a simpler, streamlined working environment
  • SIMPLE CONTROL FOR YOUR SMART HOME: See all your smart home devices in a new 3D Map View, for an easier way to manage devices in different rooms; See energy, usage and costs by device & save money by turning on energy-saving modes

2. SAMSUNG 43" Odyssey Neo G7 Series 4K UHD Smart Gaming Monitor, 144Hz, 1ms, VESA Display HDR600,

SAMSUNG 43
8.9

Samsung

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  • QUANTUM MATRIX TECHNOLOGY: Quantum Matrix Technology w/ Quantum Mini LEDs create controlled brightness and impressive contrast for games to come to life; Plus, advanced 12-bit back light unit allows detailed HDR control for unmatched picture quality*.Power Supply Type : AC100-240V 50/60Hz. Power Cable Length : 1.5 m
  • VESA DISPLAY HDR600: Experience a new level of multi-entertainment with life-like visuals; With 1,000,000:1 contrast ratio and VESA Display HDR600, both videos and games deliver abundant, deeper blacks and greater color detail*Sync Premium Pro
  • SMART TV EXPERIENCE: Enjoy your favorite shows and movies through the Smart TV apps; Take a break from marathon gaming sessions and catch up on must-see streaming content with just a simple Wi-Fi connection**
  • SAMSUNG GAMING HUB: The best of gaming all in one place; Samsung Gaming Hub allows instant access to top cloud gaming services and your favorite consoles; Smooth visuals and responsive gameplay are powered by advanced game streaming technology***
  • 4K GAMING REFRESH RATES: 144Hz refresh rate eliminates lag for gameplay with ultra-smooth action; Identify enemies with elite precision with a 1ms response time (MPRT), precise mouse movements, and blur-free frames with minimized ghosting*
  • AMD FREESYNC PREMIUM PRO: Effortlessly smooth gameplay; AMD FreeSync Premium Pro features adaptive sync technology which reduces screen tearing, stutter, and input latency; Low frame rate compensation ensures every scene flows seamlessly
  • MATTE DISPLAY: Focus only on what matters; The matte display absorbs, but does not reflect, artificial and natural light, minimizing glare and keeping you immersed during the toughest battles and hardest levels*
  • FLEX MOVE SCREEN: Optimize your gaming setup for boosted performance with Flex Move Screen by adjusting the on-screen size from 43 to 20 inches so you can maintain a winning position****
  • ULTRAWIDE GAME VIEW: Extend the screen and uncover unseen areas of game worlds with the Ultrawide Game View feature; Expand the aspect ratio easily from 16:9 to 21:9 to gain a competitive edge****
  • GAME BAR: Easily view the status of the most important settings such as FPS or HDR; Modify response time or screen ratio, as well as the game picture mode, without having to leave your game screen to keep you focused on your goal*

3. INNOCN Ultrawide Monitor 40" WQHD 3440 x 1440p 144Hz Monitor AMD FreeSync Premium HDR400 21:9

  • 21:9 Ultrawide Computer Gaming Monitor - 40" Premium ADS panel delivers high resolution 1440p 144hz monitor for gaming, 21:9 ratio bring more wide visual than normal 16:9, +18% viewable area than 34 inch gaming monitor, capture game details more clearly for quick response. 144Hz(DP), 100Hz(HDMI). Tilt / Swivel / Height Adjustable meet different viewing visions
  • AMD FreeSync Premium & HDR 400 & & 500Nits Brightness INNOCN 40C1R computer monitor adopt high dynamic range (HDR) technology with professional color gamut (95% DCI-P3) delivers high contrast 1200:1 and color performance that meets the Display HDR 400 and AMD FreeSync, bring smooth images and video viewing experience
  • USB Type C, DP and HDMI Ports40C1R delivers powerful USB C connectivity and have richful interfaces: 1 x DP, 1 x USB C, 2 x HDMI, 1 x 3.5MM Audio Jack, you can directly connect your USB C devices such as laptop, Mac, Phones, Tablets, Gaming Console( like Switch, PS5/4/3, XBOX Series etc) . It's much more convenient. Coming with US Power Adapter
  • E <2 Color Calibration & TUV Authentication & Blue Light ReductionEach INNOCN monitor coming with color calibration report, the E <2, deeply restore the true nature colors. Low blue light technoilogy ensure the comfot when long time watching or playing, INNOCN monitors are TV Rheinland certified.
  • Split Screen for productivity Equipped PBP/PIP technology which can enhance the productivity for multi-tasking such as data analysis, photo / video editing etc, you will not go wrong with any details, produce more fun and innovative things with INNOCN monitor. We provide 1-year product quality service and 7*24 hours quick solution for any product/order issue. Buy at ease!

4. Dell UltraSharp U4025QW 40" Class 5K2K WUHD Curved Screen LED Monitor - 21:9

  • LED Monitor offers maximum productivity with added dependability
  • USB Type-C allows powerful and efficient transfer of data with maximum productivity
  • 39.7" viewable screen size provides a lively viewing experience
  • 5 ms response time makes it excellent for latest action films, sports or gaming
  • View your content easily in well lit areas with 600 Nit brightness

5. LG Smart Monitor (43SQ700S) -43-Inch 4K UHD(3840x2160) IPS Display, webOS Smart Monitor, ThinQ Home,

  • 43" 4K UHD (3840 x 2160) IPS Display - The 43-inch UHD 4K (3840 x 2160) display reproduces clear images and vibrant colors with DCI-P3 80% (Typ.). Experience dramatic visual immersion with all your favorite shows, movies, sports and games.
  • x 2 Built in Speakers - With two built-in speakers, your movies, shows, music and even conference calls will all sound as good as they look.
  • Work Smart, Play Smart - LG Smart Monitor is designed for multitasking while you work, play and watch. Connect the 43 display to a laptop, desktop or gaming console to immerse yourself in your work or games. Or, with the displays LG webOS built-in, you can watch favorite shows from your favorite streaming apps.
  • webOS22 Built-in - Thanks to webOS22, find your favorites fast with built-in access to Netflix, Prime Video, the Apple TV app, Disney+, HBO Max and instant access to over 300+ free LG Channels with everything from comedy to movies to sports.
  • Apple AirPlay 2 & HomeKit Compatibility - Apple AirPlay 2 & HomeKit compatibility allow you to wirelessly control your monitor plus cast and mirror content from iOS or MacOS devices, no Apple TV necessary.
  • LG Magic Remote Compatible - This LG Smart Monitor is Magic Remote compatible. Available separately, the LG Magic Remote, can navigate your content easily. You can even control the operation and play your favorite content by voice command.
  • Simple Design, for Any Space - The large 43-inch large screen enables work efficiency, displaying multiple programs and windows on the screen at the same time. Or enjoy a full screen while steaming your favorite content. The monitors slim stand frees up space on your desktop.
  • Detachable Webcam - You can host meetings and video calls using the detachable Full HD webcam with integrated microphone and privacy cover. *Detachable webcam sold separately
  • USB Type-C: Multiple DevicesOne Cable - Seamlessly connect to external devices or charge your laptop with the convenience of USB Type-C with up to 65W power delivery.

6. Deco Gear 39" Curved Ultrawide Gaming Monitor, 2560x1440, 1ms MPRT, 165 Hz, 16:9, HDR400, 4000:1

Deco Gear 39
8.9

Deco Gear

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  • AN ALL-IN-ONE EXPERIENCE - The Deco Gear 39 Curved Ultrawide Monitor brings fast speeds, beautiful color and deep blacks, all while enveloping you with a large imagination-stirring curved screen. Excelling in multiple areas, this monitor satisfies all productive needs during the work day, and everything fun that comes after.
  • PREMIUM AND COMFORTABLE VIEWING - Not only do you get a large 39-inch ultrawide screen, you get a 3000R curvature that offers unparalleled fields of vision and immersion. Enjoy less darting eye movements scanning from one side to the other and see the whole picture in front of you, reducing eye strain and fatigue. Whether its spreadsheets, photo editing, or dominating your online RTS match, the curve of this monitor creates a more comfortable and enjoyable viewing experience.
  • VIBRANT AND ACCURATE SCREEN - Not only is this monitor comfortable, its pleasing to look at as well. Boasting 16.7 million colors and 99% sRGB color reproduction accuracy, enjoy a wide array of vivid palettes. The 4000:1 contrast ratio creates sensationally deep blacks that are evenly lit thanks to the E-LED technology. No white spots, no bright spots, no dark edges.
  • FAST AND TEAR FREE - A 165Hz refresh rate makes games and movies transition effortlessly between frames, giving you an edge in online FPS play. Combined with the 1 millisecond MPRT, feel connected to the action opn the screen as you control it. Use the Adaptive Sync feature to synchronize refresh rates of your graphics card and monitor to eliminate screen tearing!
  • MULTIPLE ADVANCED CONNECTIONS - Take advantage of multiple ports including HDMI 2.0 (144 Hz) and DP 1.4 (165 Hz). Tilt the monitor to find the right angle and reduce interference with the anti-glare screen. VESA mount compliant, easily fix this monitor to your preferred desk or wall mount.

7. SAMSUNG 43" M70B Series 4K UHD USB-C Smart Monitor & Streaming TV, 4ms, 60Hz, HDR10, Wireless

SAMSUNG 43
8.3

Samsung

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  • WATCH, PLAY, LIVE IN STYLE: Everything you need is right in your screen - all without connecting a separate PC - with the Smart Monitor; Your favorite content, productivity and video call apps are built in for a simpler and more stylish desktop setup*.Mounting Type:Wall Mount (Size mm) 100 x 100.Aspect Ratio 16:9.Image Aspect ratio:16:9.Power Supply : AC 100-240V. Operation Conditions - Temperature : 10-40 .
  • SMART TV EXPERIENCE: Effortless entertainment with a simple WiFi connection; Enjoy your favorite streaming apps in real 4K HDR, often difficult to experience on a PC environment; Samsung TV Plus offers free live content with no downloads or sign-ups, and personalized content recommendations from Universal Guide**
  • PC-LESS PRODUCTIVITY: Browse the web, edit documents and work on projects, all without the need for a separate PC; With new Workmode, you can also remotely access another PC, use Microsoft 365 programs and even connect to Samsung mobile devices with Samsung DeX for seamless working***
  • SLIMFIT CAMERA: The SlimFit camera with tilt functionality allows you to create the perfect angle while using your favorite video call apps like Google Duo, which can be accessed directly through the monitor; Plus, the camera cover and option to fully detach always protect your privacy****
  • IoT HUB: Turn your Smart Monitor into a control center for the home by connecting it to your IoT home products with SmartThings; Turn off lights, pull down blinds and set the thermostat to the perfect temperature all with the Smart Monitor for a perfectly relaxed evening*****
  • MULTIPLE VOICE ASSISTANTS: With the Far Field Voice feature, activate your voice assistant just by speaking; Directly command the monitor even at a distance and tell it what you need; The Smart Monitor supports both Bixby and Amazon Alexa******
  • MOBILE CONNECTIVITY: With AirPlay integration, you can wirelessly connect Apple devices to the Smart Monitor and view on a bigger screen; Enjoy your favorite content from an iPhone, iPad, and Mac and even mirror apps, documents, and websites
  • Everything you need is right in your screen. Watch, work and chat - all without connecting a separate PC - with Smart Monitor. Your favorite content, productivity and video call apps are built-in for a simpler and more stylish desk setup thats a joy to use every time. Features include the new Smart Hub UX/UI with OTT apps, TV Plus, HAS, increased brightness, and AI Upscaling with enhanced processor apps such as Netflix, YouTube, and HBO. Theres also gaming and IoT Hubs, Multiview, SmartThings with FFV and multiple AoVs, Slim Fit Camera in package and video communication apps.

8. ViewSonic VX4381-4K 43 Inch Ultra HD MVA 4K Monitor Widescreen with HDR10 Support, Eye Care, HDMI,

ViewSonic VX4381-4K 43 Inch Ultra HD MVA 4K Monitor Widescreen with HDR10 Support, Eye Care, HDMI,
8

Viewsonic

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  • VERSATILE MONITOR: 43 Inch 4K UHD (3840x2160p) MVA monitor with thin bezels and 60Hz refresh rate
  • MULTIPICTURE FUNCTIONALITY: Supports multi tasking and simultaneous viewing of up to 4 video sources at Full HD 1080p resolution
  • HDR10 CONTENT SUPPORT: For deep contrast, rich color, and vibrant details
  • ENHANCED VIEWING COMFORT: Flicker Free technology and Blue Light Filter for reduced eye fatigue
  • FLEXIBLE CONNECTIVITY: The VX4381 4K supports laptops, PCs, and Macs with HDMI, USB, DisplayPort, and Mini DisplayPort inputs

9. SAMSUNG 32" UJ59 Series 4K UHD (3840x2160) Computer Monitor, HDMI, Display Port, Eye Saver/Flicker

SAMSUNG 32
7.9

Samsung

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  • WIDESCREEN UHD: With 4x the pixels of Full HD, get more screen space (vs 16:9 screen) and UHD images; View documents & webpages w/ less scrolling, work more comfortably w/ multiple windows & toolbars, and enjoy photos, videos & games in stunning 4K
  • A BILLION COLOR SHADES: Supporting a billion shades of color, the UJ59 delivers incredibly vivid and realistic images; Its color accuracy means colors appear true to life, making the UJ59 ideal for photo, video and graphics applications
  • SEAMLESS UPSCALING: Samsungs UHD upscaling technology includes signal analysis and detail enhancement that seamlessly upconverts SD, HD and Full HD content to near UHD-level picture quality
  • WIDESCREEN 4K GAMING: With 8.3 million pixels supporting a wide range of colors and resolving every image with astonishing clarity, UHD gives you a wider view for a truly thrilling and immersive gaming experience
  • SMOOTHER GAMEPLAY: AMD FreeSync synchronizes the refresh rate of your graphics card & monitor to reduce image tear & stutter; Low Input Lag Mode minimizes the delay between mouse, keyboard or joystick input and onscreen response for smooth gaming
  • GAME MODE: Game Mode instantly optimizes screen contrast to give you a competitive edge during gameplay; By selectively boosting contrast in scenes, Game Mode reveals more detail in dark areas to let you spot your enemies faster
  • POWERFUL MULTITASKING: Picture-by-Picture (PBP) lets you connect to 2 devices to the monitor and maintain their original quality; With Picture-in-Picture (PIP) you can resize the second source to up to 25% of the screen and position it anywhere
  • SLIM BEZELS: Framed by slim screen bezels and finished in stylish matte black, the UJ59 sits elegantly on virtually any desktop; And its Y-shaped stand provides a firm footing and a refined metallic touch

10. LG 39GS95QE Ultragear OLED Curved Gaming Monitor 39-Inch WQHD 800R 240Hz 0.03ms DisplayHDR True

  • 39 OLED Display with 21:9 Aspect Ratio - With a large 39 display, 21:9 aspect ratio and a dramatic curved OLED screen, youll feel like youre actually in the game. Experience next-level gaming performance with LG UltraGear OLED.
  • 800R Curved Screen - This UltraGear OLED monitor's dramatic and steep 800R curve draws you in with game play by extending the periphery to feel like you're surround by the action.
  • 240Hz Refresh Rate - Gear up for smooth gameplay with an ultra-fast 240Hz OLED display. The faster speed lets you respond quickly to opponents and stay a step ahead of the competition.
  • 0.03ms Response Time - Enjoy smoother scenes with less lag or ghosting thanks to LG UltraGear OLED's nearly instantaneous 0.03ms (GtG) response time.
  • Display HDR True Black 400 & 1.5M:1 Contrast Ratio - DisplayHDR True Black 400 displays rich blacks and vivid color. The benefit of the 1.5M:1 Contrast Ratio for gaming and streaming content, is impeccable image detail in dark scenes for a stunning visual experience.
  • NVIDIA G-SYNC Compatible - Officially validated by NVIDIA as G-SYNC Compatible. That translates to faster, smoother gaming that's been tested to reduce screen tearing and stutter. Never miss a frame of the action as you clinch your victories.
  • AMD FreeSync Premium Pro - AMD FreeSync Premium Pro equips serious gamers with a fluid, virtually tear-free gaming experience. With at least 120Hz refresh rate at minimum FHD resolution and low latency gameplay, you'll never miss a frame of the action as you play at peak performance.
  • HDMI 2.1 & DisplayPort 1.4 - Enjoy smoother, vivid colors and high-resolution graphics thanks to HDMI 2.1 and DisplayPort 1.4. Both connections are supported on this display and let you experience up to 240Hz refresh rate.
  • Anti-Glare with Low Reflection Display - Play with less distractions thanks to an anti-glare screen that minimizes light reflections and lets you concentrate on winning.
  • Gamer-Centric Design - Lose yourself in the game with a virtually borderless, ultra-thin design that optimizes space within your battlestation. Easily make height, tilt, and swivel adjustments to the display to be able to see and play exactly to your specs.

Peter

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