The Samsung U32J590 is a decent 32", 4k monitor. It delivers decent picture quality, with a very good native contrast ratio and decent black uniformity. It supports FreeSync VRR and has a great response time. Unfortunately, it can't get very bright to overcome glare in a bright room, and the image degrades when viewed at an angle. It also has a fixed stand that can only tilt, so you might not be able to place it in an ideal viewing position.
The Samsung UJ59 has a decent design. The stand supports the monitor well, but it has a large footprint. The monitor is mostly made of plastic, but there shouldn't be any issues with it. Unfortunately, the stand has terrible ergonomics, making it difficult to place in an ideal viewing position without VESA mounting it.
The Samsung U32J590 has a decent stand. It is slightly thicker than the stand on the CF398, and it supports the monitor better. The monitor does wobble quite a bit though, even from the vibrations caused by typing aggressively.
The back of the monitor is very plain. There is a single vent that spans nearly the entire width of the monitor. The inputs can be difficult to access when the monitor is VESA mounted. There is only very basic cable management.
The stand on the U32J590UQN sits back from the monitor, and prevents it from being placed flush with a wall. When the stand is removed to VESA mount it, the UJ590 is very thin.
The Samsung U32J590 delivers decent overall picture quality. It has a very good native contrast ratio and decent black uniformity. It has above average viewing angles for a VA panel, but the image degrades when viewed at an angle. Unfortunately, it can't get very bright, so it isn't a great choice for a bright room. Overall, the U32J590 delivers nearly identical picture quality to the LG 32UD59-B.
This monitor does not have a local dimming feature, the above video is for reference only.
Disappointing peak brightness, the worst we've tested so far. The Samsung UJ59 is not an ideal choice if you have a bright room.
HDR is not supported on the U32J590
Disappointing horizontal viewing angles, nearly identical to the Samsung UE590 and LG 32UD59. The black levels rise rapidly at even moderate angles. Colors stay accurate even at wide angles, which is great, and the brightness only drops to half at an even wider angle, which is great.
Decent vertical viewing angles, as good as the LG 32UD59, and above average for VA panels. Whether you are looking at this monitor from above or below doesn't matter, the image remains accurate even at moderate angles. At around 30° the colors become inaccurate and the black levels are too high.
Great gray uniformity. Again, the UJ590 is nearly identical to the CF398. When playing sports games or browsing the web, there is below average dirty screen effect (DSE), which is great. In near-dark scenes the uniformity is even better, with very little DSE.
The Samsung UJ590 has decent black uniformity. There is some clouding noticeable, but very little backlight bleed or flashlighting.
Out of the box, the Samsung U32J590UQN has good accuracy. The white point and color error are high enough that some enthusiasts might notice it, but not high enough to be noticeable by most people. The gamma curve is a bit high, so some darker scenes appear too dark. Finally, the color temperature is a bit on the cool side.
After calibration, nearly all inaccuracies are corrected. The gamma follows the target curve nearly perfectly, and any remaining inaccuracies in the white balance and color are not noticeable. The color temperature is much closer to the calibration target of 6500 K.
You can download our ICC profile calibration here. This is provided for reference only and should not be used, as the calibration values vary per individual unit even for the same model due to manufacturing tolerances.
s.RGB Picture Mode: User (Calibrated)
Adobe RGB Picture Mode: User
The Samsung UJ59 has an excellent SDR color gamut. It almost perfectly covers the smaller s.RGB color space, and has excellent Adobe RGB coverage as well, great for professional photo and video editing. These results are nearly identical to the CF398 and LG 32UD59-B.
s.RGB Picture Mode: User
Adobe RGB Picture Mode: User
Outstanding SDR color volume. The Samsung U32J590 can produce bright and dark colors across the entire color gamut at almost all brightness levels.
The U32J590 does not support HDR, and so it cannot display an HDR color gamut.
HDR is not supported on the U32J590UQN.
There are no signs of temporary image retention on the UJ590, even immediately after displaying our high contrast static test pattern for 10 minutes.
Excellent gradient handling. There is some banding visible in darker scenes, but not enough to cause any issues under normal use.
There are no pixel errors whatsoever, which is great.
The Samsung U32J590 has good motion handling. It has a great response time that results in low motion blur behind fast moving objects. It supports FreeSync, which is great, but has a maximum refresh rate of 60 Hz that may be insufficient for more demanding gamers. Unfortunately, there is PWM flicker at low backlight levels, but this shouldn't be a problem for most people, as the monitor can't get very bright, so most people will want to keep the backlight above this level.
The U32J590 has a very good response time. There is a slight blur-trail behind fast moving objects, but this shouldn't be very noticeable with normal content.
There are some duplications noticeable in our photo due to the PWM flicker. This should not be noticeable under normal viewing conditions, as most people will have the backlight set bright enough that there is no flicker.
The Response Time setting can be adjusted to customize the Overdrive. There are three levels, but we recommend using 'Standard'. The other two modes provide slightly faster response times, but with higher levels of overshoot that may bother some people.
Unfortunately, the Samsung U32J590 uses PWM to dim the backlight at lower backlight levels. Since the monitor is not very bright, this shouldn't be an issue for most people, as there is no flicker at higher brightness settings.
Update 05/10/2019: We have retested the UJ590 with NVIDIA drivers 430.39, and FreeSync is now working properly on our GTX 1060 6 Gb, but only with the FreeSync setting on the monitor set to 'Ultimate'.
The maximum refresh rate is 60 Hz, which may disappoint some people. It supports FreeSync over HDMI and DisplayPort.
FreeSync has two modes on this monitor: Ultimate Engine provides the widest FreeSync range, and results in the least amount of screen tearing. In some cases, there may be some noticeable screen flicker in this mode, which can be reduced by switching to the Standard Engine, although this mode has a reduced VRR range of 50-60 fps.
The Samsung UJ59 has excellent low input lag across any mode. It has a great screen size and resolution that is great for gaming or office work. It also has a good selection of inputs, but unfortunately, only one of the two HDMI ports supports 4k @ 60 Hz.
Lowest input lag possible at the center of the screen, when the monitor is displaying an alternative resolution at its native refresh rate. The non-native resolution tested depends on the native resolution of the monitor, following this pattern unless otherwise specified in the Input Lag text:
|Native Resolution||Non-Native Resolution Tested|
Excellent low input lag in any mode, even with FreeSync enabled.
The 32", 4k screen is great for multitasking, as it provides a great deal of screen real estate. It also provides for a more immersive gaming experience.
The U32J590UQN has two HDMI ports, but only HDMI 2 supports 4k @ 60 Hz, whereas HDMI 1 is limited to 4k @ 30 Hz.
The Samsung U32J590 has a few additional features. It can display the image from two sources simultaneously, either side-by-side or picture-in-picture. It also has a Game Mode, that adjusts the gamma and contrast to make it easier to see objects hiding in shadows. The OSD is simple and easy to use, but the controls can be confusing at times.
The UJ590 has internal speakers, but it does not support HDR. It also has a few additional features:
We tested the Samsung U32J590 version LA01 (lu32j590uqnxza), which is the only size available.
If someone comes across a different type of panel or if their Samsung U32J590 doesn't correspond to our review, let us know and we will update the review. Note that some tests such as the gray uniformity may vary between individual units.
The U32J590 we reviewed was manufactured in October 2018.
The Samsung U32J590 offers decent performance, but there are similar monitors that outperform it. See our recommendations for the best 28-32 inch monitors, the best 4k gaming monitors, and the best 4k monitors.
The LG 32UD59-B is better than the Samsung UJ590. The LG has a completely flicker-free backlight, and the stand has an adjustable height. The LG is also much brighter and has two full bandwidth HDMI 2.0 ports that support 4k @ 60Hz.
The BenQ EW3270U is better than the Samsung UJ590. The BenQ supports HDR, and the backlight is completely flicker-free. The BenQ EW3270U is also much brighter than the Samsung UJ590, and it has two full bandwidth HDMI 2.0 ports that can display 4k @ 60Hz.
The Samsung UJ590 is better than the UE590. The newer UJ590 has a much better native contrast ratio, thanks to the VA panel. It also has better viewing angles, and much better Adobe RGB color volume. The older UE590 is a lot brighter.
The Samsung UJ590 is slightly better than the Samsung CF398. The UJ590 has a higher resolution, 4k screen that is better suited for multitasking. The CF398 is flicker-free, whereas the UJ590 has PWM flicker at low brightness levels.