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Sony 27” INZONE M9 4K HDR 144Hz Gaming Monitor with Full Array Local Dimming (SDM-U27M90)

  • mfr: SDMU27M90
  • SKU: SDMU27M90
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Product highlights

  • 27-inch 4K HDR Gaming Monitor
  • Full Array Local Dimming backlighting technology
  • 4x pixels of Full HD monitors and 4K resolution
  • Ultra-fast 144Hz refresh rate
  • Compatibility for Nvidia G-SYNC and HDMI 2.1 VRR
  • DisplayHDR™ 600 certification
  • Over 95% coverage of DCI-P3 spectrum
  • Less ghosting and blur with 1ms GtG response time
  • Auto HDR Tone Mapping and Auto Genre Picture Mode 
  • Unique height and tilt adjustable tripod stand
  • Two HDMI 2.1 ports, DisplayPort 1.4, and USB Type-C

Sony 27” INZONE M9 4K HDR 144Hz Gaming Monitor with Full Array Local Dimming (SDM-U27M90)

Nothing stays hidden with Full Array Local Dimming contrast

With Full Array Local Dimming, light goes exactly where it’s needed so you see more depth in shadow and highlights. Spot rivals lurking in the dark and uncover objects in brightness with more clarity. Enhanced contrast across the screen opens up your view of the game like never before.

Accept nothing less than razor-sharp 4K detail

4K gaming monitors have four times more pixels than Full HD monitors. Whether you like shooting, racing or role play, you’ll enjoy flawless images with crystal-clear details and greater pixel density.

Aim accurately, shoot fast with 144Hz refresh rate

Sharpen your senses and respond fast. A refresh rate of up to 144Hz gives you that split-second advantage that makes all the difference in tracking opponents precisely.

Eliminate screen tearing with NVIDIA G-SYNC and VRR

By adjusting the display refresh rate dynamically to match the variable frame rates of gaming devices, the INZONE M9 monitor with NVIDIA G-SYNC and HDMI 2.1 Variable Refresh Rate (VRR) compatibility virtually eliminates screen tearing, stuttering and delay for smoother, more fluid gameplay.

DisplayHDR 600 certified, true visual immersion

With DisplayHDR 600, scenes are reproduced in vivid color with rich accurate contrast and high peak brightness of 600 nits. Now you can see spectacular highlights as the game creators intended.

Vibrant and realistic colors with over 95% DCI-P3 coverage

With over 95% coverage of the DCI-P3 spectrum, the INZONE M9 4K HDR gaming monitor brings out an extended range of over a billion rich, vibrant colors. More shades and hues create breathtaking scenes for immersive gaming.

Rapid action with 1ms GtG response time

Perform at a whole new level on an IPS display with ultra-fast 1ms GtG response speed. Less ghosting and blur allows you to see what’s happening with absolute clarity so you can make lightning-fast decisions and react immediately

Perfect for PlayStation 5

Pair the INZONE M9 with your PS5 console to get a fantastic gaming experience and features made specifically for PS5 consoles. With Auto HDR Tone Mapping, your INZONE gaming monitor automatically recognizes your PS5 console and optimizes HDR settings during initial setup of the console. Auto Genre Picture Mode can detect when you’re playing a game or watching movies on your PS5 console and automatically switch to the best picture quality mode.

Designed to fit the way you play

The unique, low-depth tripod stand provides total gaming comfort while optimizing desk space for peripherals. The stand is also height and tilt adjustable to get the best viewing experience. Integrated cable management keeps your desktop clean and distraction free. Adjust the color of the rear light bar to match your room ambience.

Easily connect and control your gaming system

Power up your gaming rig and connect all your peripherals in no time. A variety of input options including two HDMI 2.1 ports, DisplayPort 1.4 and USB Type-C (DisplayPort Alternate Mode) gives you the connectivity you need. A built-in Auto KVM Switch allows you to control up to two PCs from a single set of gear.

All your monitor settings, software controlled

Quickly and easily adjust monitor settings with just a few clicks of the mouse using the INZONE Hub PC software. As well as tweaking settings, you can also assign specific picture modes to individual PC applications and games.


Resolution 3840 x 2160
TV Screen Size (Diagonal) 27"
Variable Frame Rates Adaptive-Sync (VESA DP), NVIDIA G-SYNC Compatible, Variable Refresh Rate (HDMI 2.1)
Touch Screen No
HDR Compatibility HDR10, Hybrid Log Gamma
TV Tuner Not Available
Weight Weight With Stand: Approx. 6.8 Kg Weight Without Stand: Approx. 4.6 Kg
Mounting-Hole Pattern 100 x 100 mm
Lock Slot No
Virtual Assistant Support Not Available
USB Ports 1 x USB Type-C, 1 x USB Type-B, 3 x USB Type-A
External Ports 1 x 1/8" / 3.5 mm (Headphone) (Side)
Ports 9


Customer Questions
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Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges. 
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact [email protected] with your order number and a description of the damage. 
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at [email protected], or send us a message here.  
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead. 
If you ordered a kit, you must return all components and accessories to receive a full refund. 
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund. 
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900. 
Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

Shipping and Returns

Same Day Shipping

All orders placed by 4PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

Free Two-Day Shipping

We offer free expedited shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).

Flexible, Easy Returns

If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.

Ratings and reviews

Sony 27” INZONE M9 4K HDR 144Hz Gaming Monitor with Full Array Local Dimming and NVIDIA G-SYNC (SDM-U27M90)

Sony 27” INZONE M9 4K HDR 144Hz Gaming Monitor with Full Array Local Dimming (SDM-U27M90) SKU: SDMU27M90

Rated 4 out of 5 by from good quality bought it and have fallen in love with the purchase i made
Date published: 2022-12-17
Rated 2 out of 5 by from Biggest headache Bought this 2 months ago and it has been the biggest headache as a my entry into high end monitors, both in price and features. The out of the box experience when setting it up with my PC and PS5 required a lot of googling and rummaging around for a USB-B as something not very common was not included in the box. My 1.4 DP was not being displayed and would just show a black screen. The VESA mount is very particular about what you can use since it is imbedded into the back of the monitor, I was unable to use my gas spring mount and had to buy a new mount as I did not want to use the mount provided as it took up a substantial amount of space on my desk. As for the features, once it is up and running and updates are completed, everything seems to look great. The pictures are vibrant, the local dimming looks alright when set to low, and the refresh rate didn't cause much ghosting. Now for some reason, 2 months later, it is again not displaying my 1.4 DP for my PC. I did not change anything yet here I am again having to deal with this. The PS5 works well with it but wouldnt say it stands out to having any other monitor or TV with it. Just overall a pain and frustrating.
Date published: 2022-12-12
Rated 1 out of 5 by from I expected better performance I've had the monitor since the launch date and I'm not satisfied with the performance. there's a long delay when my ps5 switches from 60hz to 120hz and lots of times the screens gets foggy. the only fix is to unplug the HDMI cord and then reconnect and wait for the video to sync again. i do not recommend this product.
Date published: 2022-12-05
Rated 5 out of 5 by from Great product for gaming! Awesome picture! [This review was collected as part of a promotion.] I'm extremely very happy with this gaming monitor. This monitor was very easy to setup which I needed. I received this a little over 5 weeks ago. I set it up very quickly and very easy. The high-resolution picture quality is amazingly great. The colors are terrific and gets very bright. The sound is great also!! I would definitely recommend this to friends and family.
Date published: 2022-11-21
Rated 3 out of 5 by from Beautiful but Dead Pixels [This review was collected as part of a promotion.] We absolutely loved this monitor when it arrived. The setup was quick and easy. The size is perfect for gaming and those with difficulty seeing up close. I do have two problems however. First is that it takes the monitor forever to wake up and connect to the PC. You have to shake the mouse violently. The Second problem is we immediately noticed 2 dead pixels. When the screen is lit up they are hard to see but if you’re looking for them you can see them. For a hard core gamer this could be a problem. For us we just live with them. Lastly, while not problem for us, I could see it being problem for others, is the stand for the monitor. The feet are really wide apart so you can’t put this really close to the edge. Overall a great looking monitor with a few downfalls.
Date published: 2022-11-15
Rated 2 out of 5 by from Inzone m9 Bad experience with Sony replacement. Having a problem with the local dimming with this monitor I regret buying it. they said im not the only one they plenty of people with the same problem. So no recommending this monitor just wait for the next gen.
Date published: 2022-11-10
Rated 5 out of 5 by from Super high quality great monitor [This review was collected as part of a promotion.] I received this Sony - INZONE M9 | 27'' 4K IPS 1ms 144 Hz HDR Gaming Monitor a few weeks ago and I am still amazed with quality and crisp picture. I would recommend this monitor to anyone looking for a high quality gaming monitor.
Date published: 2022-11-03
Rated 5 out of 5 by from Beautiful Picture Quality! [This review was collected as part of a promotion.] The Sony INZONE M9 4k monitor is one of the best on market for my gaming needs. It has amazingly sharp 4k HDR capabilities. The colors and graphics are so crisp that they make everything lifelike. With a refresh rate of 144hz, it gives me an advantage over my competition. The response time is as fast as I have ever seen in terms of great gaming monitors. The monitor is NVIDIA G-Sync compatible to help variable frame rates as well. The monitor comes with a nice stylish stand that is unique compared to others I have seen. All in all, this monitor is perfect for everyone from casual to competitive gamers. I would recommend this gaming monitor to any style of gamer.
Date published: 2022-11-02
Rated 5 out of 5 by from Amazed by the quality [This review was collected as part of a promotion.] If you game on a PC or a PS5 you will be amazed by the quality and how much this boosts everything all around. It was easy to assemble and put together. It tilts and adjusts to the heights needed. The 27 inch display really brings the colors to life. The 4K display is godly. It included 2 hdmi ports but you’ll need your own cables. I highly recommend.
Date published: 2022-11-01
Rated 5 out of 5 by from Awesome! [This review was collected as part of a promotion.] My son loves it! He has it connected to his Xbox and couldn’t be happier. I think we need to switch out the HDMI, but other than that he constantly raves about the quality and the fps speed. It’s sleek and slim and doesn’t take too much space. This is a great gaming monitor!!!!
Date published: 2022-11-01
Rated 5 out of 5 by from Excellent gaming monitor! [This review was collected as part of a promotion.] Games were more enjoyable with remarkable color accuracy in precise 4K resolution. Whole gaming experience was more realistic than any other monitor I have played on before. Even the dark mode games had such great resolution, it’s unreal. Monitor’s design is very modern, I love the LED on the back side of the screen, very classy! The stand is sturdy however I feel that there is much less flexibility to adjust the height of the screen. But I will get an external monitor stand to fix that gap.
Date published: 2022-10-30
Rated 5 out of 5 by from Wow, Iove it [This review was collected as part of a promotion.] This gaming monitor is super simple to set up. I set it up with my laptop to enjoy gaming on this big 27 in screen and WOW! It makes my games look fantastic and the sound works great. I wont game any other way now.
Date published: 2022-10-29
Rated 5 out of 5 by from Gamers, Got to have!! [This review was collected as part of a promotion.] I got this monitor for my son for his birthday and wow, just wow. I'm so happy I chose this gift for him and he absolutely loves it. It was a win win for both of us, he got his own little gaming room and I got control of my tv now. This Sony inzone monitor is the next- gen having monitor, I'm just amazed by it. This is a true 4K HDR monitor and with 27 inches is a great screen to play on and look at. The picture is vivid, sharp, and just a great gaming experience. True HDR we was amazed at the how the games looked bring played on this. I like that my son chooses this over our regular tv. The monitor is light weight and easy to move around where you need it. The instructions came with pictures and was pretty much self explanatory, we set it up in just a few minutes. I liked that it has lots of ports for HDMI, headphones, ECT. The speaker sound is pretty much like a regular tv. And it's ok for now for my son. We think it's cool how it matched the PS5 colors perfectly, like that were made for each other. It's just a great monitor, everything about it was great.. The price was a little high, but you get what you pay for. You want a nice monitor for your bucks this is it.
Date published: 2022-10-28
Rated 4 out of 5 by from Amazing picture [This review was collected as part of a promotion.] The quality of the picture is fantastic on this monitor. While gaming you can tell this monitor uses high quality components. The navigation button for the monitor does seem a little flimsy and the stand could be stronger.
Date published: 2022-10-27
Rated 5 out of 5 by from Crystal-clear 4k picture quality! [This review was collected as part of a promotion.] This is the first gaming monitor I've owned. I have never gone wrong with Sony products, so I knew the 4K picture quality had to be good, and the picture is crystal-clear! So clear that my wife thought I was watching a TV basketball game on it. Haha! It's designed to work with the Playstation 5 that I bought last Christmas for my son and I. I have it setting on my desk, and when it's game night, my son and I pull up our gaming chairs and play for hours on it! It has so many features, too many to list! Very happy with this purchase!
Date published: 2022-10-27
Rated 5 out of 5 by from Great Gaming Monitor.!! [This review was collected as part of a promotion.] The Sony INZONE M9 HDR Gaming Monitor is amazing.! My son was so happy because he loves to play game.We really like the design (the design of the monitor has PlayStation vibes) and I really like the stand as well. The screen looks fantastic for gaming. I love the black and white color scheme of the display and stand. The stand is adjustable up and down. The picture quality and the colors are beautiful and you can really tell a difference in the local dimming. Absolutely stunning gaming monitor. We really enjoyed it.!!
Date published: 2022-10-26
Rated 4 out of 5 by from Excellent choice for console gaming and PC [This review was collected as part of a promotion.] Was super excited to try this out. Had high expectations and the INZONE M9 met them, for the most part. Wanted to give it as much of a shot as possible so I tried it for console gaming, computer gaming and general use, plus tried it with my 4K Blu-ray player as well. Passed each test with flying colors. Bright display and the built in menu is very intuitive and offers the ability to adjust just about everything you could possibly want. Refresh rate is great here (144Hz for DP and 120Hz for HDMI) Won't go into all the specs here as they are found easily online, but needless to say this is a full featured monitor that won't break the bank while delivering a great user experience and zero lag during gaming. I recommend downloading and installing INZONE Hub before connecting the monitor to your PC for the first time. This allows for more in depth settings. Also, to get the best results you may need to change some settings under display options in windows to take advantage of the best refresh rates. I recommend getting a good quality HDMI or DP cable for best quality picture also. The included stand offers both adjustable height and forward / backwards tilt (NO Left / Right). While I do not use VESA mounts often I have seen that some online have had an issue using one with the M9. Be sure if you want to do so you have one that's 100 x 100mm as they come in various sizes. I would like to see a HDMI or DP cable included at this price point. Power brick is on the large size, speakers aren't the best and the stand design is a bit odd, but other than that this monitor is a home run in my opinion. I highly recommend and give this a solid 4/5 stars.
Date published: 2022-10-26
Rated 5 out of 5 by from Great monitor for ps5 [This review was collected as part of a promotion.] My son has been using this monitor for his ps5 and loves it. Set up was very simple and only took him a few minutes. He is big on things matching and loves that the white on the monitor stand and the led lighting on the back of the monitor are the same as the ps5. The 4k resolution is amazing. Everything looks so bright and clear. It's perfect for gaming and watching movies. Would definitely recommend!
Date published: 2022-10-26
Rated 5 out of 5 by from Awesome picture! [This review was collected as part of a promotion.] I got this for my son's PS5. He plays a lot of Fortnite and has been asking for a gaming computer for awhile now. We decided to get him a monitor to hook up to his Playstation so what better monitor then one that was made for a Playstation. Hookup was very easy to do. I did have to put the stand on the monitor but that was easy as well. The stand is pretty heavy which is a good thing for durability. We do plan on wall mounting it once we get his gaming room set up. The display is amazing. The colors are vivid which makes the characters stand out even more on screen. Speakers could be a little louder but they aren't bad at all either. So far everything has been working better than expected.
Date published: 2022-10-24
Rated 3 out of 5 by from Was expecting more for the price [This review was collected as part of a promotion.] I was excited about this monitor. Don't get me wrong, it is not a bad monitor. Very solid construction. Feels high end. Looks really great. I'm just not blown away by the picture or the sound. It's just "okay" which is not what you'd expect from Sony or for the price. Colors are not vibrant and sound is not special. It's not a bad monitor. It's just not great. Also, it takes longer than most to "wake up" which is kind of annoying.
Date published: 2022-10-23
Rated 5 out of 5 by from Happy kids [This review was collected as part of a promotion.] I got this gaming monitor for my grandchildren . I don’t actually game myself. I do see the better definition and quality in their play. I the graphics are sharper and they tell me they absolutely love this monitor.
Date published: 2022-10-22
Rated 5 out of 5 by from Great gaming screen [This review was collected as part of a promotion.] 27 inch inzone monitor made by Sony is definitely a premium technology to play games on. Comes with the basics to assist you in getting set up. However, there is no HDMI or display port cord provided. Set up is very easy. The stand is shaky and has limited height range nor does it swivel. The 4k delivers a rich and bright resolution. But the sound quality sounds tinny and hollow. Overall, it is still a great gaming monitor.
Date published: 2022-10-22
Rated 5 out of 5 by from WOW! [This review was collected as part of a promotion.] Replacing our old 2K, 60Hz monitor with the Sony INZONE M9 27" Gaming monitor ... I can't even describe the difference. The 4K definition is phenomenal and there is no comparision with the refresh rate. 144 Hz is the way to go! The gaming monitor was quickly setup (very easy) and the adjustable height and tilt of the monitor allows easy adjustability for multiple players. Sony delivers with vibrant colors and superior contrast. You can't go wrong with the Sony INZONE Gaming Monitor!
Date published: 2022-10-20
Rated 4 out of 5 by from Great quality [This review was collected as part of a promotion.] The overall graphics on the monitor are really good. The 4K and HDR on the Monitor make the picture quality really good. The 144hz is really smooth for competitive games. Overall this monitor is perfect for anyone who likes gaming.
Date published: 2022-10-19
Rated 5 out of 5 by from Great gaming monitor + all around monitor [This review was collected as part of a promotion.] I bought this monitor about a month ago as an upgrade to my work/play monitor. During the day I'm looking at spreadsheets, doing zoom calls for work and the monitor is obviously more than equipped to handle those tasks. Where it really shines is after work as I use it for PC and PS5 gaming. The colors are bright and pop off the screen, I don't notice any lag time at all, and the customizability of the settings let me tune it to exactly how I like it. The stand is not the sturdiest, but it looks very modern. I don't plan on moving the monitor much once it's all set up so I didn't mind the stand as much. It has plenty of inputs for me to hook things up. Definitely would recommend.
Date published: 2022-10-18
Rated 5 out of 5 by from Game Changing Display! [This review was collected as part of a promotion.] This monitor is incredible. First off, the sleek design looks great alongside my computer and consoles. The monitor huge and is perfect for all sorts of gaming! I love the HDR and 4k games look absolutely stunning. Finally a gaming monitor that can support the quality and FPS of next-gen consoles! Highly recommend!!!!
Date published: 2022-10-17
Date published: 2022-10-17
Rated 5 out of 5 by from Pixel Perfect [This review was collected as part of a promotion.] Ive gone ahead and used this monitor now with my PS5 and my Series X and the quality compared to my TV is outstanding. The setup was super easy, it pretty much set itself up with my consoles. The stand it comes with is super sturdy and since I do like to put my feet up on my desk or sometimes get too into my games and shake the table this thing is absolutely planted to the ground. Spend the money and improve your gaming setup. Its well worth it.
Date published: 2022-10-16
Rated 5 out of 5 by from Amazing [This review was collected as part of a promotion.] Received this monitor in the mail. This was a great surprise for my son! He loves to play his play station and we enjoyed that this product was a Sony product! Very very easy setup! Not too big for it to sit in his room. The monitor size is 27”. We love how it brings the colors out! 1000/10 recommended!
Date published: 2022-10-15
Rated 5 out of 5 by from Amazing product! [This review was collected as part of a promotion.] The INZONE M9 Gaming Monitor by Sony works amazing! The quality is great and it's very easy to set up and use. The style of the monitor is very modern and looks great. I would definitely recommend!
Date published: 2022-10-15
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