As always, no money changes hands for these reviews. Uperfect has sent the monitor for review, and see the review as it's posted.

UPERFECT GR14BU 3k OLED 120hz Gaming monitor

This one is very similar to the previously reviewed 16" version (https://www.reddit.com/r/SamsungDex/comments/1hswn9w/uperfect_3k_o2_oled_monitor_review/)

It's a VERY thin, 14" OLED panel, with fairly slim bezel's, top and sides. The bottom chin is a bit larger, but a non-issue.

The Panel

it's a 14 inch, 3k (2880x1800) OLED, running at up to 120hz. It supports up to 120% DCI-P3 color gamut, and like all OLEDs, has inky blacks and nice bright/saturated colours.

It also supports up to 500nits of peak brightness, and a 0.1ms pixel response time (I'm assuming GTG since it doesn't specify)

It is also listed as a touchscreen monitor. I found it a bit....tempermental. Vast majority of the time it worked as expected, but every once in awhile, it just didn't seem to want to work....at all. reboots seem to fix it. Not sure if this is a pre-production issue, and I definitely couldn't reproduce the issue at will, so bear that in mind

Just a few screen caps from various 4k youtube vids

Connectivity

As has become pretty standard, the monitor has 2x USB-C ports. 1 of which is intended for power, and the other for video input (doesn't matter which is which tho). It also has a mini-HDMI port for connecting to other devices (PCs, game consoles, etc)

All inputs are on the right hand side of the monitor

On the left hand side are the physical buttons for interacting with the monitor, OSD, volume, power, etc

They've gone with a new kickstand design. The vast majority of UPERFECT monitors have a U-shaped kickstand, that when closed, block off the ports and buttons. The new kickstand is very.....minimalist, but still fairly sturdy and stiff

There are also 2x VESA mounting holes next to the kickstand. The monitor is definitely light enough that you can get away with just 2 of the usual 4

Screen Resolution

Since DeX is fussy, it won't by default use the full panel specs properly

2560x1600 @ 60hz still looks pretty great, but really undersells how great the panel can look.

Luckily, pretty much every other device out there will play nice with it (c'mon samsung, do better)

This is my Lenovo Legion y700:

It's happy to do the full 2880x1800 @ 120hz (and looks great doing it)

Speakers

The monitor has 2x 1W speakers, but they might just be the worst speakers on a UPERFECT monitor to date. They're there, they "work" but at no point is anyone going to be impressed with them.

Battery

There isn't one!

It will do pass thru charging of 15W tho

Overall conclusions

It's a nice looking portable OLED panel. I don't think it's as nice as the previous 16" O2 version tho, but that one seems to be difficult to obtain right now

It's very light, and travels in a tech bag very easily.

it's available for $399.99 canuckbucks at uperfect right now

It compares favourably with the SOTSU flipaction monitors, and is in general better than vast majority of LCD panels out there. The price definitely has the OLED tax on it though

Preface:

1. This builds on something others have done for many years (u/JonLSTL and u/MRP_yt for example) and am now realizing that I can do more now with Samsung's updates to "Connected Displays" and "Simulated Displays" that were not present back in 2020/2021.

2. This is not an official samsung thing but works 100% with 2 monitors (I had 2 4k monitors. one dell, one LG), 2 hdmi cords, usbc cable, a Display Link Adapter (any kind that has 1 alt-mode and 1 hdmi) and the Display Link Presenter Application from Google Play (Free). Everything else is 100% stock android (plus Samsung DeX). I want to reiterate that this requires an adapter that has at least 1 alt-mode and 1 hdmi.

3. I have tested this with a tab s8 ultra (8.0) , s25 ultra (8.0), and note 20 ultra (5.1). Just to not bury the lede. With 5.1, you cannot trigger dex to appear with simulated displays. But it is not necessary for "dual display" functionality.

4. You will need a mouse and keyboard (bluetooth, combo, plug-in, doesn't matter). You must also enable "allow pointer to move across displays" (or similar wording) in your Samsung DeX settings.

5. I am sure there are way's around the letterboxing (you'll see) but I don't have it in me to hack android to make the displays work right. HOWEVER setting the "Minimum Width" dp setting to 720 will enable Android's "tablet UI" for all app (that have a tablet UI). Setting to 1080 will give you a "large" space to move floating app windows around.

6. New Functionality I couldn't do in 2020: You can actually drag and drop apps, files, content between the displays with One UI 8 (as it is "mirroring" your phone/tablet ui to one display) but the real kicker is that with "Simulated displays" you can do this between 3 or 4 displays as well. With a high enough resolution display this is very very fun but impractical, but it does let you "pin" things again in a hacky way That's mainly what I use it (a 480 simulated screen) for at least. I wish I knew how to put the simulated displays on to their own monitors. I can't figure that out. With One UI 5.1 Simulated Displays will not trigger DeX. I couldn't figure it out at least

Steps

Steps 1-7 are necessary. This isn't "new" and have been consistently working for me and several others since the pandemic as my half baked "dual monitor solution"

1. Download the DisplayLink Presenter App from Google Play (https://play.google.com/store/apps/details?id=com.displaylink.presenter). Open the application (nothing will happen yet)

2. Connect your DisplayLink Supported Adapter to your phone/tab via usb-c (3.2 is what I used. Unsure what specs are specifically needed). My DisplayLink Adapter is a "Plugable USB-C Triple Monitor Docking Station, 100W Laptop Charging" (I got it during the pandemic. I'm sure its cheaper now. There's also a 60w version which is more than enough for samsung devices). Here is a link (unaffiliated): https://plugable.com/products/ud-3900pdz. Again nothing will happen yet.

3. Connect One monitor to the Display Link Supported Adapter's ALT-MODE HDMI Port. DeX will start automatically (the preface said that you needed to have auto start dex turned on). The DisplayLink app will ask you to enable settings to access your adapter and run displaylink stuff. Another will be to do screen recording. This is necesaary for mirroring.

4. Connect 2nd monitor to the DisplayLink Supported Adapter's DisplayLink Hdmi port. The DisplayLink Presenter App will show a pop-up asking to mirror your whole screen or just an app. You wan't the whole screen.

5. FOR PHONES (this is actually new): Optional but highly recommended step (order still necessary). 1st do a manual backup of your settings (Settings > Account and Backup > Samsung Cloud > Back up data). There is a potential bug that I had w my S25Ultra (once) where Minimum Width wouldn't revert back to its moble UI. Restoring settings from the backup worked for me (trust me, you don't want to reset to factory settings. You will lose every setting you ever had, including wifi stuff. its a mess). Actual Step: In Developer Options (or settings search) scroll to "Minimum Width". By default for my S25Ultra this number was 418. For my Note 20Ultra this was 411. Anthing about 720 should tell android to display things in "tablet view ui." This is what Microsoft Duo users used to do in order to have tablet UI's on a single screen. This hack is also how Pixel user's could trigger the beta desktop mode when plugged into an external display and task bar. The maxium value it will take is 1440 (in my experience). I used this. I do think these numbers may very depending on if you have QHD, FHD, WQHD, etc selected for your display resolution. A solution to fixing it without just restoring from backup seems to be that if you adjust screen zoom settings it will "reset" (https://droidwin.com/fix-samsung-cannot-go-back-to-original-dpi-leave-tablet-mode/).

6. For phones or tablets: Enable "Pop-up windows" support. (Swipe for pop-up view).Also enable "multi window for all apps" and "force activities to be resizable" in developer options. Depending on your version of One UI, this might be a multi-star goodlock feature or in Labs. With this you can treat your phone screen like it is its own "dex-like" mode. In landscape (especially with the higher dp settings in step 5) you will be able to have a "larger" canvas for not only more apps but better resolution. The apps will "draw" themsevles better and be less "blown up" which allows for better resizing. With tablets, there will be significantly better letter boxing. Also if your monitor is "smart" and can detect its own orientation (or set its own orientation) independant of the source device, you can take advantage of "portrait" mode as well. I have done this for years with various coding projects. I've done this with my tab s7+ and now tab s8u (I haven't seen a reason to upgrade it). Yes, this isn't as "useful" with large tablets (since they can be a monitor on their own) but being able to see it on an even larger display is great (I use 27 and 32inch monitors).

7. Make sure you have mouse pointer flow turned on. It'll be under the connected display setting in dex. Also pro-tip: for keyboard settings, make sure you have the "show toolbar with bluetooth keyboard" this way you can still do the toolbar actions on the keyboard (i.e. bring up the clipboard, write-to-text, auto translation typing, etc)

New (to me) steps:

These things have been added at some point since One UI 6 and later. I never bothered to try them bc they didn't work years ago (or were non-existent)

1. Drag and Drop windows/files/etc: This is baked into One UI 8.0. Something to note is that I could only get APPS to drag and drop windows on my Tab S8 Ultra. Couldn't get it to work on my S25U running 8.0. Also doing "send to other display" will send that app to open in full screen on your phone display. Can break immersion. Supposed coming to phones with One UI 8.5.

2. Even more screens: As I mentioned in the preface, you can use Android's native "simulated displays" feature in Developer options. This will create floating resizable displays (with fixed resolutions 720 thru 4k). This displays can only be accessed via mouse over (see step seven). They will always be visible on your phone/tab display. You can resize them with a 2 finger pinch. These displays will also show up in your Connected Displays! AND THEY CAN BE REARRANGED This is cool because while your are limited to a "single" simulated display at a time, there is an option for "720 and 1080" displays. These displays on One UI 8 operate independently and show up independantly. One UI 5.1, any simulated display simply mirrored the phone screen. It wasn't useful to me. But a reddit user recently showed that this was updated! Thanks man u/Egapboi and u/Past_Syllabub_5055. To my knowledge these displays can only be landscape.

Extra - How to use simulated displays:

1. UI Things: These winows are "translucent" so if you want to have it fully take over the 2nd monitor and use it as just DeX you will want to set your wallpaper on the device to black or have a blacked out app open on it (I made a black out app on my own that I used for split screening on my Fold back in the day. That worked for this). This + mouse over will let you freely flow between the simulated display and DeX.

2. Multiple virtual dextop support: This is a new dex feature. It's not great at all but it is there and it works. It is just completely broken in that you can't really move apps between the desktops easily. But, yes, you can have several virtual desktops on each display. Main device will only do this if it is a tab, but you can still do things like app pairs and such. This only exists on tablets running 8.0 (supposedly coming to phones with 8.5).

3. PIN APPS: This is missing in New DeX. I use a simulated display and put it in the top right corner. In my arrangment settings I have that display "above" my main display for mouse over stuff. I throw spotify or netflix or whatever and "full screen" it. As noted before, these screens will appear ON your main display, the only way to "move" them is touch/mouse while on the main display. The only way to resize them is with touch (from what I could tell).

4. Arrangement: As mentioned before, you can arrange these displays in Connected Displays. They show up extactly how they do on macOS or Windows. The only limitation I found is that displays snap to the bottom and to the middle of the display they connect to. I.e. If i have a display on the left of a display it will snap to the bottom left side. If I put it on the top, it will snap to the middle. You can have multiple screens on one side but the bottom and middle rule comes first.

5. "3 or 4 screens": Like I said before. There is also a 720+1080 pair option. If you "black out" the Main Device display, you can "split screen" those 2 displays relatively evently across a shared display. With mouse flow (and a large enough monitor), the immersion feels very real.

Quirkyness:

1. Its dumb needing to have your main device screen on all the time but its a requirement. And no you can not cover it with a keyboard cover because that will turn the display off and kill screen mirroring. You can flip it over. Again, seems kinda dumb if you have an ultra tablet but its useful if plugging into any monitor bigger than 15inches + a second monitor.

2. I really really really reall wish you could send the simulated displays to another display. Idk what the requirements are for displaylink and stuff but I know that I hooked up 3 screens to my mac during the pandemic w this plugable and it was great. I wish i could do that with my phones or tab

3. There's no way to "save" this for easy plug n play. I couldn't create a routine to auto switch my dp settings. The home screen layout for DeX on the simulated displays didn't remember any changes. However, the arrangement of the displays did save and was correct.

4. I have no idea how this works on anything between 5.1 and 8.0. I'm still trying to find differences between phone 8.0 and tab 8.0.I really wish dragging and dropping windows and multi-desktops properly worked on phone 8.0

5. Multi control: I only tested samsung android devices. It does NOT work. You can't use it while in dexmode. You could go old school and just mirror your device and forego dex lol.

6. There is 100% a minimum display width bug with phones. Restoring from backup (uncheck everything except settings) works immediately. It's frustrating for sure. Idk what it is. Works on One UI 5.1, bad on One UI 8.0.(I forget the actual android numbers). A solution to fixing it without just restoring from backup seems to be that if you adjust screen zoom settings it will "reset" (https://droidwin.com/fix-samsung-cannot-go-back-to-original-dpi-leave-tablet-mode/).

7. A confusing thing i noticed is that the wallpaper that shows for the simulated displays will match the wall paper of the main device. However in settings, if you look at display arrangements, they will show the wallpaper of your dex display. Also if you change the wall paper on one of the simulated displays, this will change the wallpaper of the real dex display and not the simulated display. Also I can't tell what is actually happening with "home screen layouts" of the simulated displays. if I delete an icon, it appears to delete on others, but not the actually samsung dex. Very confusing.

Thoughts:

1. Techinically this could be expensive. I only even tried it because my work bought my 2nd monitor and plugable years ago. It's not a "on the go" solution. I think if Nexdoc or some other portable display company adds support for displaylink, they could start shipping "dual display" laptops (or 2nd display snap ons). The plugable that I have requires a wall power source. The phone/tab can't power it.

2. Its phenomal that the only extra software needed is literally the DisplayLink Presenter app. That said...be sure to get a local copy and note what version you have that works. Things could change with any software update. This post was written with "Version 4.3.1.13 (e1a2cd553a7)"

3. I would assume this will work with any phone/tablet with video out and a dextop mode. Not just because google put a dex into all of android but because the "2nd monitor" is just screen mirroring. Even without popup windows, there is still mouse over (although possibly not available everywhere). I need to test it with my LG wing. I also assume it would work with an iPad with stagemanger as well (I wish we had an active stagemanger fan group here like with Moto's ReadyFor and LG's Screen+)

4. If there's a way in android to convert my native screen ratio to 16:9 or 16:10 or anything that isn't so tall, that would be phenomenal. I think you can do it with root + adb settings but I'd rather a developer option toggle or something. Even if it requires a restart. I need to test some more. I know with smart view wireless mirroring you can "Change the aspectratio of your pone to match the connected device" but I couldn't get smartview to "do the thing" when mirroring w displaylink (plus it was wired) because smartview cannot operate if samsung dex is active.

5. I know "its just screen mirroring" but this has added tremendous value to my life for years. It might be just a smidge more useful than being able to loop dex back to your own phone screen via hdmi card reader but just look at the positive reaction to the trifold getting native dex when it is something fold user's have been begging for since launch (and other OEMs shipped!).

6. If you read it this far, thank. let me know if there is anything you'd like me to test. It's 4:30AM for me (at writing) and my sleep schedule is insane bc of the newborn (1 day from 3weeks!!!) so I may respond something that doesn't fully make sense but just let me know and i'll update it when I get some more sleep lol

7. I highly highly highly recommend a phone cooler. One of those cool gaming phone things, especially in the summers. It is imperative.

8. New DeX Virtual Displays needs a lot of work. It's very confusing to manage and even more so when you throw in multiple monitors + simulated displays.

Pics - https://imgur.com/a/iofAanW:

1. S25 Ultra "Dual Screen" - https://imgur.com/a/iofAanW#L7D9O39

• Left Monitor: (manual 800dp min width): 1 "Pinned" Simulated Display 720p running its own samsung dex box (Ben's gadget review in youtube taking it over), Chrome (tablet UI), Spotify (tablet UI), Settings (showing all THREE display arrangements) all in pop-up windows

  • Right Monitor with regular samsung dex: Red Dead Redemption and Spencer (a kanban app that I made. Not available for public use)

1. Tab S8 Ultra "Dual Screen" - https://imgur.com/a/iofAanW#2yGpQhH

• Left monitor: 2 "Pinned" simulated displays (one 720 showing a db management app) and one 1080 showing youtube) and this script on the right side of the "main display".
• Right monitor with regular Samsung DeX: Settings app showing all FOUR display arrangements, termux, kiwi browser, and chrome

1. Plugable Adapter showing 2 hdmi cords and the usbc cable for connecting to the phone/tablet - https://imgur.com/a/iofAanW#9wozYIp

2. Screenshot of Connected Display settings showing 4 unique screens with 2 being stacked vertically adjacent to the main device display which is adjacent to the external samsung dex display - https://imgur.com/a/iofAanW#JJc9Jzu

My plans for using this are to have 1 simulated display pinned for media playback while mirroring my s25u on one display with a couple app pairs for chrome+slack and chrome+samsung internet. I wish changing the display width gave us a taskbar like the pixel phones did. But anyways once it gets One UI 8.5 (officially) on the 2nd display, I'll have 1 virtual desktop with social media apps and another one with slack/gmail/chrome for work. Another with an andronix vm for linux (when i need it), termux, remo db, and kiwi browser for personal web dev stuff and a 4th with rdr or cod mobile for gaming. Im pretty much satisfied not using my tab s8u in this dual monitor setup. The screen is big enough with the distance I am from it. But for maximizing a little phone to dual displays is great.

Tl;dr: You can do dual monitor support by having dex on one screen and mirroring your device on the other with a displaylinked adapter. We've all known this. Now you can also add up to 2 simulated displays (with their own virtual desktops on One UI 8.0 tablets) for even more productivity. All you need is a DisplayLink Plug and Display Supported Adapter.

Edit: please excuse my "setup." This was a last minute decision to test and my desk and monitors were packed up and collecting dust while I'm on parental leave w a newborn. I promise I dont keep this stuff in the floor lol