Anyone else experiencing dead/stuck pixel(s) in iMac 5K?

A single dead pixel on a 5K display would not be visible to the human eye. I don't see why this would be a concern. However you have 2 weeks to return for refund or replacement if you purchased directly from Apple.

I agree. If you notice it, get it resolved. Keep in mind that unless you are running max resolution content you are probably seeing more than one dead/stuck pixel. You may actually be seeing a group of four pixels when the display scales. Either way, you paid for the quality of the screen, primarily. Suggest you quit asking others for an opinion and return it for a perfect product. I would FWIW.

I have a tiny grey spot in the upper left hand side as well. Did Apple replace yours?

Just received my imac 5k today, and having one dead pixel too 😟

It's a small black dot in the center of lower part of the screen.

I think I won't ask to replace it, because there is no guarantee that new one will be better.

Just expected perfect display, and... it's not

Finally decided to ask for replacement.

Got new one, it doesn't have dead pixels, but it has some grey scratch or mote 2mm long inside the screen.

Is it just me, or they all have defects? 😟

Recieved my custom 4GHz i7 5K Retina iMac only to find what looks to be 3 black scratches on the middle of the screen, inspecting it further it's in the inner layer of the screen, the outside of the glass is flawless it's noticeable on light background or white screen, so could be hundreds or thousands of dead pixels because of the overall size of the resolution, wasnt happy so I called apple care, have to wait another 14 days or so to get the replacement fingers crossed the display on the replacement product isn't defective... Wonder why apples quality control has gone all of a sudden, on my third iPhone 6 plus as well this year... Things shouldn't come out of the factory like this, LCD technology has been around too long for this to happen... There should be a 0% tolerance to dead or defective pixels on panels... Apparently LG makes the panel on the Retina iMac, it doesn't surprise me that there's hundreds and thousands of defective iMac Retina panels out there right now, Apple should go with a quality manufacturers like Sharp or Panasonic.

fingers crossed I don't get another rushed Retina screen, wouldn't be surprised if Apple has so many defective screens because they rushed to get the technology out without properly quality testing going on.

Dont accept any dead pixels on these screens, if youre paying 4 and a half grand for one of these power machines don't accept anything but a perfect screen.

Apple raised the bar with quality computing and mobile technology don't accept anything but what they say they are delivering... If they say it's a gorgeous display then only accept a flawless display that's what they promised you.

OK so here's a follow up, got my replacement screen everything is peachy not a single flaw on the new 5k retina screen. Then after about 4 hours using the machine a small grey line appears in centre bottom half of screen..: overall it's not noticeable 95% of the time but it makes me wonder how hard it must be to make these displays... Seems like nearly every 27inch retina screen has minor to major issues even the display at the Apple Store in Rundle mall has small pixel flaws... I'm actually thinking Apple has started to lose its quality control ability because it's designing things that are too hard to perfect... Now it could be because LG is a complete bozo at making screen panels or there's not enough checks on the parts of the screen it seems pixel matrix layer and polariser layer are most at risk here... a single bit of air gets into the layer and it appears as grey spots and it will **** the customer off over time.

im mostly happy with the replacement screen but it's far from perfect, backlighting needs major improvement as well... Good display but not gorgeous because it's manufacturing and engineering problems.