Best 4K 21.5-27 inch monitors around $150USD

[RealJasonFong]

As my monitor is not as healthy to my eyes as the newer models, I would like to get another monitor after I get a new desk. But, I do not want to get a overpriced monitor, so this is what I want with the monitors:

Price: around $150USD
Resolution: 4K/5K
Size:21.5-27inch(I will be using the current BenQ GW2255 monitor as my 2nd monitor and I do not want the 2 monitors not being able to fit at my new desk.)
Brand(Manufacturer):Anyone is OK
*IMPORTANT*Blue light filter: YES PLEASE! That is why I am getting a new monitor!
Edges: As thin as possible
Ports: DisplayPort or HDMI
Build-in speakers: No need

Any help will be greatly appreciated! Thanks a lot for answering!

 

[Eximo]

Non-existent?

That kind of money will get you a basic 21.5" 1920x1080 screen with no features.

 

[RealJasonFong]

Non-existent?

That kind of money will get you a basic 21.5" 1920x1080 screen with no features.

Well,what does 'No features' mean? No USB ports or audio jacks?
BTW, I updated my list up there, please check out.
I am not in a hurry as I am getting the monitor after 3 months, just asking here early...
Anyway thanks for answering

 

[Eximo]

Still way out of the price range for a 4K monitor...

You can expect a monitor with no features to have one or two interfaces, usually HDMI and VGA, not include cables, audio or USB, no speakers, and stands with only tilt adjust. This will vary, as these are the most commonly sold class of monitors. Basically a step below business class. (Better off buying used business monitors really)

Even the cheapest 4K monitor is $262, from Amazon, in the US. And since right next to it is a pile of used ones, I imagine the return rate is rather high. That same monitor is $300+ at other retailers, so it looks more like a temporary deal to get rid of a monitor that is selling poorly.

Cheapest you can expect to get a decent 4K monitor for is around $350, and even then I don't think they are worth it. These are 24" class monitors, which is an adequate size for 1920x1080. 4K just quadruples the amount of work the graphics card has to do, for little gain in image clarity. 28"+ and 4K starts to make some sense as you have the area that needs to be covered by more pixels to keep the PPI count up.

 

[RealJasonFong]

Still way out of the price range for a 4K monitor...

You can expect a monitor with no features to have one or two interfaces, usually HDMI and VGA, not include cables, audio or USB, no speakers, and stands with only tilt adjust. This will vary, as these are the most commonly sold class of monitors. Basically a step below business class. (Better off buying used business monitors really)

Even the cheapest 4K monitor is $262, from Amazon, in the US. And since right next to it is a pile of used ones, I imagine the return rate is rather high. That same monitor is $300+ at other retailers, so it looks more like a temporary deal to get rid of a monitor that is selling poorly.

Cheapest you can expect to get a decent 4K monitor for is around $350, and even then I don't think they are worth it. These are 24" class monitors, which is an adequate size for 1920x1080. 4K just quadruples the amount of work the graphics card has to do, for little gain in image clarity. 28"+ and 4K starts to make some sense as you have the area that needs to be covered by more pixels to keep the PPI count up.

well...
I just walked around a computer center and saw a monitor (27inch) with the price tag of $1000 HKD. Maybe I am just blind and THOUGHT that was a 4k monitor but it isn''t. Sorry for wasting your time, but still, thank you for helping me...
(At least I know what 4k monitors are expensive xD)

 

[Eximo]

Typical monitors sizes/resolutions

21.5" 1280x720, 1440x900, 1920x1080
22-23.8" 1920x1080
24"-25" 1920x1080, 2560x1440, the occasional 4K
27" 1920x1080 (possibly what you saw) , 2560x1440, the occasional 4K
28-35" 4K, and the very occasional 5K (Which is usually only professional monitors)
8K is a thing, but very few products to date, mostly TVs.

27" 1920x1080 is getting into low pixel density and aren't desirable for a multi-purpose monitor. Good enough for games and multimedia, but very poor when it comes to reading. 2560x1440 is a good match for this size, and then you are back into that $300 range.

I suspect you also saw a TN panel, which while still okay, don't produce good colors or viewing angles (your blue-shifting would be quite pronounced with anything but a calibrated monitor)

 

[RealJasonFong]

Typical monitors sizes/resolutions

21.5" 1280x720, 1440x900, 1920x1080
22-23.8" 1920x1080
24"-25" 1920x1080, 2560x1440, the occasional 4K
27" 1920x1080 (possibly what you saw) , 2560x1440, the occasional 4K
28-35" 4K, and the very occasional 5K (Which is usually only professional monitors)
8K is a thing, but very few products to date, mostly TVs.

27" 1920x1080 is getting into low pixel density and aren't desirable for a multi-purpose monitor. Good enough for games and multimedia, but very poor when it comes to reading. 2560x1440 is a good match for this size, and then you are back into that $300 range.

I suspect you also saw a TN panel, which while still okay, don't produce good colors or viewing angles (your blue-shifting would be quite pronounced with anything but a calibrated monitor)

That helped a LOT! 28inch is OK too(I think).
Thanks!