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thinking to buy mi max- screen quality doubt...

As written up- I consider buying max but most reviews said screen is not too good (not resolution but colors, they mostly say it is too bluish...)
Clearly, screen is main reason to buy this phone so this is deal breaker...
From owners- is it really so badly calibrated or bad itself?
I know that there is apk kcal for calibrating on low level qualcomm based phones screen (on cm or aosp). As there is cm13 for max, did anyone tried this?
any feedback is precious, thanks...
regards

I ordered a Xiaomi Mi Max last weekend after reading the review linked below, the most incredibly comprehensive review I've ever seen of a smartphone. I'm still waiting on the phone, it is still being shuffled about China, so I can't give my own opinion of the screen yet.
Read review here:
http://www.techspot.com/review/1239-xiaomi-mi-max/

Before my Mi Max 64 (pro) I used my Note 5. The note has a obviously better screen with higher resolution, but my Mi Max is no slouch. My complaint about the phone is the camera. While it takes well lit indoor/outdoor snaps of stationary targets, I found shooting my 4 month puppy (that didn't sound right), dodging and running was a near impossibility. Doesn't seem different camera app, ROM or update will solve the problem as it is hardware driven.
I'll be selling my Mi Max when another large screen phone with good camera comes around (Honor Note 8, Asus Zenfone 3 Ultra or Lenovo phab 2 pro), but meanwhile I love the large form factor an quick response of the SD 652.
But the screen: That's the last of my concerns. actually only the camera bothers me)

ivanox1972 said:
As written up- I consider buying max but most reviews said screen is not too good (not resolution but colors, they mostly say it is too bluish...)
Clearly, screen is main reason to buy this phone so this is deal breaker...
From owners- is it really so badly calibrated or bad itself?
I know that there is apk kcal for calibrating on low level qualcomm based phones screen (on cm or aosp). As there is cm13 for max, did anyone tried this?
any feedback is precious, thanks...
regards
Click to expand...
Click to collapse
Don't worry about the screen, it's fine. I use Color Control from the Play Store to calibrate the saturation. Now it looks like an AMOLED minus the deep blacks. You'll be satisfied with the screen in the Mi Max.

audscott said:
Before my Mi Max 64 (pro) I used my Note 5. The note has a obviously better screen with higher resolution, but my Mi Max is no slouch. My complaint about the phone is the camera. While it takes well lit indoor/outdoor snaps of stationary targets, I found shooting my 4 month puppy (that didn't sound right), dodging and running was a near impossibility. Doesn't seem different camera app, ROM or update will solve the problem as it is hardware driven.
I'll be selling my Mi Max when another large screen phone with good camera comes around (Honor Note 8, Asus Zenfone 3 Ultra or Lenovo phab 2 pro), but meanwhile I love the large form factor an quick response of the SD 652.
But the screen: That's the last of my concerns. actually only the camera bothers me)
Click to expand...
Click to collapse
Agree! Apart from the camera, this phone leaves little room for complaint. I was wondering if there is some way ige quality can be improved through some software tweak or better preset shooting mode configurations. Tried Open camera, CameraNext Mod and Focal. Did notice a slight difference. But low light photos still frankly suck when I compare it to my previous LG G Pro 2.

Wondering what do you guys expect from a under $300 phone... It has plenty for that price already.

thanks guys, it is not problem in expecting much for low money. I had almost all samsung flagships in last few years (s4, s6, note 1, note 3, note 4, now note 5). I want big screen- and is there better solution?
Huawei have some but software is terrible for my opinion... and no development at all...
I will, if buy max, install cm first minute- so how it works is there any major problem (autobrightness or big battery drain). Camera is last important for me...

ajsmsg78 said:
Don't worry about the screen, it's fine. I use Color Control from the Play Store to calibrate the saturation. Now it looks like an AMOLED minus the deep blacks. You'll be satisfied with the screen in the Mi Max.
Click to expand...
Click to collapse
would you provide the link of this app?
---------- Post added at 11:12 AM ---------- Previous post was at 11:09 AM ----------
auldthief said:
Agree! Apart from the camera, this phone leaves little room for complaint. I was wondering if there is some way ige quality can be improved through some software tweak or better preset shooting mode configurations. Tried Open camera, CameraNext Mod and Focal. Did notice a slight difference. But low light photos still frankly suck when I compare it to my previous LG G Pro 2.
Click to expand...
Click to collapse
you can try manual camera app to set shutter speed as high as possible to shot moving objects

hes_luckey said:
would you provide the link of this app?
Click to expand...
Click to collapse
https://play.google.com/store/apps/details?id=mobi.omegacentauri.red&hl=en
They have a free version and a pro version. I bought the pro version.

So this bluish cast or generally can be fixed? Screen is not bad, just not so good calibrated initially?

ivanox1972 said:
So this bluish cast or generally can be fixed? Screen is not bad, just not so good calibrated initially?
Click to expand...
Click to collapse
Yes it can be adjusted. It's honestly not that bad even without adjustments.

Nothing wrong with the screen. I have never thought about wanting to calibrate it. I don't think it has a blue cast. My XA Ultra on the other hand...

I use the glare removal reading setting for apps that I spend a long time looking at. It adds a yellowish cast to the screen. I suffer insomnia so blue light is a concern for me. My sleep hasn't been great since buying the max but that's entirely due to not being able to put it down! I use twilight also to counter blue light at night.

I bought my Max (3/32) from Xiaomi Authorized store, and wanna say, it's not bluish! BUT, my friend got the "best" version, and the screen of his phone is... little yellow-ish, or something like that. He got his phone from Gearbest, that's what i know. Before Mi Max i used another phones with 6,44" screen size - Sony Z Ultra's. Every phone (i replaced 3) had differently calibrated screen. The best way is to get phone and (if you don't like calibration) tune screen for your preferences. We all have little different eyes.

Reviews really not like this screen, but ok.
I would go on cm13 of course: how is camera quality and autobrighness there?
Every phone has this problem on cm...

I thought the screen was pretty good, the reviewers must be spoilt constantly around $800 phones. For this price point I was quite impressed.
Does anyone know who makes the LCD panel?

F27 said:
I thought the screen was pretty good, the reviewers must be spoilt constantly around $800 phones. For this price point I was quite impressed.
Does anyone know who makes the LCD panel?
Click to expand...
Click to collapse
tianma r63350 1080p video mode dsi panel

Is kcal calibrating screen apk supported on cm 13- cm14? I do not know is it working on snapdragon 650/ 652?
Or any other app generally, how big improvement can be made on screen picture quality?
thanks

Font is not sharp

Hello,
5T is my first Oneplus phone and i really like it.
But i think, there is some problem with font. For example, when i reading emails in gmail app, the font is not sharp and have some weird ghosting effect or some outline. It is not that great when reading. This thing is also in Google Chrome, Facebook Messenger.
Is there anyone, who can see it too?

Looks fine on mine.

jarda62 said:
Hello,
5T is my first Oneplus phone and i really like it.
But i think, there is some problem with font. For example, when i reading emails in gmail app, the font is not sharp and have some weird ghosting effect or some outline. It is not that great when reading. This thing is also in Google Chrome, Facebook Messenger.
Is there anyone, who can see it too?
Click to expand...
Click to collapse
It's not a problem with the font, it's the 1080p screen. A 6" screen is getting pretty big for 1080p IMO. It's not that bad, but I can see a big difference between the 5T with a ppi of 401 and the Note 8 with a ppi of 521. If OnePlus decides to go bigger than 6" next time, they will have to increase the ppi.

is it as bad as it was with LG G3?

usmanxhmed said:
is it as bad as it was with LG G3?
Click to expand...
Click to collapse
I don't see any kind of pixelation whether it's pictures or fonts whatever. They all look crisp for me and before coming to this I was using Samsung Note 4 for 2 years which has 2k display.

usmanxhmed said:
is it as bad as it was with LG G3?
Click to expand...
Click to collapse
Just too be clear... the screen is very nice on the 5T, it's just not as good as the Note 8 or S8. But, I would prefer the screen on the 5T any day over the Pixel 2 XL. That blue shift on the Pixel was pretty bad.

Agree, no sharpness issues here, screen looks great. Pixel 2 XL screen was unusable for me, colors changed to blue with phone moving around under normal typing.

lyall29 said:
Just too be clear... the screen is very nice on the 5T, it's just not as good as the Note 8 or S8. But, I would prefer the screen on the 5T any day over the Pixel 2 XL. That blue shift on the Pixel was pretty bad.
Click to expand...
Click to collapse
If screen is same as 5T without jelly scrolling its, fine for me, i never had issue with 5T screen for Text ghosting effects, i was sick of occasional Jelly scrolling.
I could never stand Text Over sharpening of LG G3 as well.
---------- Post added at 07:22 PM ---------- Previous post was at 07:17 PM ----------
lyall29 said:
Just too be clear... the screen is very nice on the 5T, it's just not as good as the Note 8 or S8. But, I would prefer the screen on the 5T any day over the Pixel 2 XL. That blue shift on the Pixel was pretty bad.
Click to expand...
Click to collapse
Well, i could never notice difference between screen quality between 1080p and 2K, last 2 k screen i used was Galaxy S7, it was fine, after that i went to iPhone 6/6s/7/8 screens, despite low resolution, it was as good as Samsung screen for me, i also used OP2,3,3T and 5 as well, only bad screen was of OP2 with washed out colours and HUGE DPI.
Now i am sadly confused between iPhone 8/8Plus and Android that is 5T. Same old bull**** issue for me. X is too expensive for me to put on a phone and keep taking care of it, not to use it freely, after spending like 1200 on it, Plus i don't want to support over pricing as well.
Hoping 5T, should come out to be good.

Hi Guys, Im seeing the same thing in my Huawei Mate 10 Pro. Funny enough no one seems to notice but for me its extremely clear coming from the Note 3.

lyall29 said:
It's not a problem with the font, it's the 1080p screen. A 6" screen is getting pretty big for 1080p IMO. It's not that bad, but I can see a big difference between the 5T with a ppi of 401 and the Note 8 with a ppi of 521. If OnePlus decides to go bigger than 6" next time, they will have to increase the ppi.
Click to expand...
Click to collapse
I disagree

Princeland said:
I disagree
Click to expand...
Click to collapse
I disagree with you disagreeing ?
I guess its just up to the eyes of the beholder. IMO, 1080 is not enough for a big phone. If you don't have a problem with 1080p, that's fine with me. Some people don't have a problem with a 24" 1080p computer monitor. But for me, 1440p at 24" is the bare minimum. If my GPU would push 4k at 100HZ or more, I would love to have a 4k monitor. That being said, the OnePlus 5T is still a great phone, even if it's only 1080p.

lyall29 said:
I disagree with you disagreeing ?
I guess its just up to the eyes of the beholder. IMO, 1080 is not enough for a big phone. If you don't have a problem with 1080p, that's fine with me. Some people don't have a problem with a 24" 1080p computer monitor. But for me, 1440p at 24" is the bare minimum. If my GPU would push 4k at 100HZ or more, I would love to have a 4k monitor. That being said, the OnePlus 5T is still a great phone, even if it's only 1080p.
Click to expand...
Click to collapse
My previous mobile was an S7 Edge and the 5t screen is better, the whites are much better, the colors and the quality of the screen too and I have never seen any letter with saw teeth. So in my experience the fhd screen of the 5t is better than the Qhd screen of the S7 Edge without discussion. For this I can not agree
Cheers!

Screen refresh rate?

What's the screen refresh rate of Galaxy Note 10/10+?

60hz I believed
tribalfs said:
What's the screen refresh rate of Galaxy Note 10/10+?
Click to expand...
Click to collapse

It's 60Hz

Very disappointing, Samsung make the 90hz screen used in the OnePlus 7 Pro but don't use it on their flagship.
Shame... Shame... Shame...

Hubird said:
Very disappointing, Samsung make the 90hz screen used in the OnePlus 7 Pro but don't use it on their flagship.
Shame... Shame... Shame...
Click to expand...
Click to collapse
Not worth it. Normal phone activities you can't tell a difference. It's a gimmick for the most part

Hubird said:
Every single review (user, YouTube video and tech site) I have seen disagrees with you... Even the Pixel 4 is said to have a 90hz screen.
There's only one reason not to offer it ... GREED. They wanted a few $$ extra profit using an inferior screen.
Click to expand...
Click to collapse
Its a battery killer and you'll only really notice it when scrolling, I've not seen a YouTube video where they said it improved game/video performance. That being said it would still have been a nice option to have even if you turned it off
Sent from my SM-N950F using Tapatalk

Hubird said:
Every single review (user, YouTube video and tech site) I have seen disagrees with you... Even the Pixel 4 is said to have a 90hz screen.
There's only one reason not to offer it ... GREED. They wanted a few $$ extra profit using an inferior screen.
Click to expand...
Click to collapse
I do agree with you but its choice we have to make do i need a 90hz refresh rate ? if yes then chose phones accordingly .... just my .2cents

andy242 said:
Its a battery killer and you'll only really notice it when scrolling, I've not seen a YouTube video where they said it improved game/video performance. That being said it would still have been a nice option to have even if you turned it off
Click to expand...
Click to collapse
I don't use 90Hz on my 7P, since endurance isn't a strong suit of the device. We need larger batteries or graphene cells before features like that become viable.

Hubird said:
Every single review (user, YouTube video and tech site) I have seen disagrees with you... Even the Pixel 4 is said to have a 90hz screen.
There's only one reason not to offer it ... GREED. They wanted a few $$ extra profit using an inferior screen.
Click to expand...
Click to collapse
I dont know if you actually seen any proper reviews of the op7p or just spewing the same bs as every reviewer.
Yes, 90hz is a huge deal and makes everything noticably smoother. But the op7p screen is mediocre at best in everything else. Check out the displaymate note10+ review, it literally broke 13 records, 1300+ nit peak brightness, practically perfect color accuracy etc. The note 10+ screen is superior in every single way but one-refresh rate. Its not at all an inferior screen, quite the opposite actually.

I see people bashing Samsung and stating how better the OnePlus display is. I don't know If people realize that Samsung is the manufacturer of the Oneplus Amoled displays. I firmly believed that Samsung got good reasons to not use a 90hz refresh rate display on their flagships this year. One of the main reasons is battery life.
Sent from my [device_name] using XDA-Developers Legacy app

* * * Thread Cleaned * * *
This is the QUESTION & ANSWER section for the 10+ display / refresh rate.
If you have a question or an answer about the 10+ screen, please make sure your comment is respectful and helpful.
If you'd like to discuss other devices, outside of a brief comparison to the 10+, please take those non-10+ device comments to their respective device fora.
If you want to discuss corporate greed regarding the 10+ please take it to the DISCUSSION section.
Bottom line: if your comment is disrespectful, insulting, condescending, attacking, rude, primarily about a non-10+ device, or not directly related to the screen refresh rate of the 10+, please don't post it here!
Thanks for your cooperation.

60 Hz in the Note 10/10+..
90 Hz does impact on batterylife, hence an optional 90 Hz RR could have been great, especially when the price of the plus is god damn high in many countries.
It is difficult to believe it as a fact that a manufactuer does not provide a good feature just for an honest good reason.
Did Samsung remove the heart rate sensor for a good reason ?
Apple does not provide a dongle or a fast charger for a good reason ?
Did OnePlus stop providing the converter in the box for a good reason?
Yes, for a "different good reason" for sure.
Once the 90Hz refresh rate is experienced in the UI, it spoils and difficult to go back to a lower RR - this is undoubtedly true.

When a phone is released as a flagship certain features are expected. Nokia, with their Pureview crazy camera phone made the mistake of using last gen SoC and performance suffered as a result.
The Galaxy S10 range were released with UFS 2.1 when 3 was available and the Pixel 3 had huge bezels that wasted space.
The bar has been raised and companies need to step up, 90hz is now the minimum for any flagship. If battery life is an issue then a bigger battery is needed.
From what I read, once you go 90hz you can't go back to 60hz, that's a big, bold statement!
I don't do blind brand loyalty, they have to work for my hard earned

Hubird said:
When a phone is released as a flagship certain features are expected. Nokia, with their Pureview crazy camera phone made the mistake of using last gen SoC and performance suffered as a result.
The Galaxy S10 range were released with UFS 2.1 when 3 was available and the Pixel 3 had huge bezels that wasted space.
The bar has been raised and companies need to step up, 90hz is now the minimum for any flagship. If battery life is an issue then a bigger battery is needed.
From what I read, once you go 90hz you can't go back to 60hz, that's a big, bold statement!
I don't do blind brand loyalty, they have to work for my hard earned
Click to expand...
Click to collapse
Have you experienced 90 hz on a smartphone yet? Everybody said once you experience 90hz and UFS 3.0 you can't go back. Well they were wrong. The oneplus 7 pro has both and it wasn't that impressive. UFS 3.0 is a bigger deal then screen refresh to me but neither are "you can't go back" to the prior thats for sure. Still rocking an S10+ that is "old". Note 10+ should be close to perfection besides hole punch in middle

oneandroidnut said:
Have you experienced 90 hz on a smartphone yet? Everybody said once you experience 90hz and UFS 3.0 you can't go back. Well they were wrong. The oneplus 7 pro has both and it wasn't that impressive. UFS 3.0 is a bigger deal then screen refresh to me but neither are "you can't go back" to the prior thats for sure. Still rocking an S10+ that is "old". Note 10+ should be close to perfection besides hole punch in middle
Click to expand...
Click to collapse
I did, ofcourse with the oneplus 7 pro. The experience of 90 Hz UI transition is buttery smooth and that's immediately noticeable. I do not like the OnePlus 7 Pro for various other reasons, but credit goes where it's due.
2ndly, I do not know who said once UFS 3.0 is used one cannot go back , I've not read anywhere any such thing or personally did not feel something like that, but then to have UFS 3.0 is just better.

I don't mind not having a higher refresh out of the box, but I do wonder if isn't it doable thru editing some settings files?
Maybe our screen handles it?

Question Google Camera (GCam) for Moto G60?

This phone's camera is trash, especially in night time. Not that I believe more mega pixels = better quality; but I was under the impression that the larger sensor behind 108 MP should collects more light and give better night time photos. The sensor is probably fine, but Moto's image processing is crap.
I tried a Google Camera version meant for Moto G 5G with 48 MP primary camera. The results are still bad.
Is there any specific GCam version for this phone right now?

I was planning to buy it for the 108MP camera and My UX, should I consider getting the Realme 8 pro or a different device instead? Not going for the redmi because of their embarrassingly bad MIUI.

I bought this phone for the UI which is closer to AOSP. So far the performance and UI are pretty good and refreshing to use after using MIUI for years. Battery is pretty good as well.
I still hope a proper Google Camera version optimized for this phone would improve the image quality by a huge margin as it's the same sensor used in Redmi Note 10 Pro (Max).
I have never used Realme phones, so can't recommend one. I'm sick of Redmi phones as well because of their crappy MIUI and tried a Moto phone for the first time.

Thank you for your reply! I would be very grateful if you could answer a few more of my questions about this device:
What would you consider some pros and cons of buying this as of now?
Does the 120hz screen make a significant difference?
Have you noticed any differences in normal video quality and HDR10?
If you've used an AMOLED display phone before, have you noticed any significant difference between both?
Thank you in advance!

I had some luck using the Gcam "GCam_7.3.018_Urnyx05-v2.1_Wichaya_V3.1.1". I don't know if we're able to post links here, but just google that and you'll be able to find. I'm trying to build a config file for G60, but i have no previous experience so i'm having a hard time.

shivansh68 said:
Thank you for your reply! I would be very grateful if you could answer a few more of my questions about this device:
What would you consider some pros and cons of buying this as of now?
Does the 120hz screen make a significant difference?
Have you noticed any differences in normal video quality and HDR10?
If you've used an AMOLED display phone before, have you noticed any significant difference between both?
Thank you in advance!
Click to expand...
Click to collapse
I recently bought it, you won't notice significant difference in 60 and 120 hz refresh rates but touch input rate makes pointer to follow quick.
Display is good you'll mostly notice diffrence between amoled and lcd at night.
I'm very attracted towards stock android no lags no glitches no mi or samsung or Microsoft's crappy apps I'm very happy with the phone. It's a chonky boy

z1_nile said:
I recently bought it, you won't notice significant difference in 60 and 120 hz refresh rates but touch input rate makes pointer to follow quick.
Display is good you'll mostly notice diffrence between amoled and lcd at night.
I'm very attracted towards stock android no lags no glitches no mi or samsung or Microsoft's crappy apps I'm very happy with the phone. It's a chonky boy
Click to expand...
Click to collapse
Try this gcam

ERAAF said:
Try this gcam
Click to expand...
Click to collapse
Link please

Gcam For Moto G60
Apk: Gcam 7.3 urnyx05 v2.1 wichaya v3
Configs/xml

The refresh rate does make a difference. Once you use this and go back to 60 hz it can hard to bear. It was for me. But most midrange phones these days have atleast 90hz which is fine

I have a G30(11k) and G40 fusion(14k)
G40 fusion is miles ahead in performance, stability, and features
When it comes to refresh rate, the difference between 120hz and 90hz is noticeable, at least to my eyes

Question Over sharpened Mi 11x Amoled display

Hi, I recently bought mi 11x and have been using it for past couple of days. What I have noticed is that the shaprness of my phone's display is very high and because of that everything looks really bad on the screen... Like artifacts around black text on white background or anything running in low resolution... Is this normal or there's any problem with my display? Should I get my device replaced? Is anyone else is facing similar issue with mi 11x/poco f3/redmi k40 ? Is this MIUI issue and will it be solved if I install custom rom?

what phone did you use prior to mi 11x ?
PS: there is no such thing as sharpened display

suaveUt said:
Hi, I recently bought mi 11x and have been using it for past couple of days. What I have noticed is that the shaprness of my phone's display is very high and because of that everything looks really bad on the screen... Like artifacts around black text on white background or anything running in low resolution... Is this normal or there's any problem with my display? Should I get my device replaced? Is anyone else is facing similar issue with mi 11x/poco f3/redmi k40 ? Is this MIUI issue and will it be solved if I install custom rom?
Click to expand...
Click to collapse
turn of ai hdr enhancement in settings, it'll be around in display

K-scorpion said:
turn of ai hdr enhancement in settings, it'll be around in display
Click to expand...
Click to collapse
I had turned it off immediately after using the phone for the first time ... but Still text is a lot more sharper than normal .. and there are artifacts around text (although minute but still there).

venomus001 said:
what phone did you use prior to mi 11x ?
PS: there is no such thing as sharpened display
Click to expand...
Click to collapse
Lmao get out of here, never owned a TV or monitor in your life???
Sharpness doesn't exist because I never heard about it

Rstment ^m^ said:
Lmao get out of here, never owned a TV or monitor in your life???
Sharpness doesn't exist because I never heard about it
Click to expand...
Click to collapse
this is not tv or monitor, phones generally don't have any Sharpness settings, pixels can be turned off or combined to the lower resolution, i simply wonder if op was using LCD or different ppi density prior to buying this phone

venomus001 said:
this is not tv or monitor, phones generally don't have any Sharpness settings, pixels can be turned off or combined to the lower resolution, i simply wonder if op was using LCD or different ppi density prior to buying this phone
Click to expand...
Click to collapse
We don't have settings for sharpness indeed but manufacturer does . They can fine tune the display as they like...
Different phones can have different feels to them regardless of pixel density or panel type

Rstment ^m^ said:
We don't have settings for sharpness indeed but manufacturer does . They can fine tune the display as they like...
Different phones can have different feels to them regardless of pixel density or panel type
Click to expand...
Click to collapse
Please refer below images. I have tried to capture the text fringing and white artifacts (light shadows) around black text with my old phone's camera.
I hope these images will give you better idea of what issue i am facing right now with AMOLED display.
The outcome required with this discussion would be to check if there is something wrong with my phone's display or this is generally normal with AMOLED displays.
And if there is some problem with sharpness, do i need to get it replaced???
P.S. - I have tried to capture the issue.. i don't know the pictures are doing the justice to reflect the issue but all these mentioned halo effects and text fringing are quite visible to the naked eyes.

My poco f3 also has this problem

this is a common problem with pentile AMOLED panels it seems. I am not sure why this still exists in 2021 though. Maybe Xiaomi and other Chinese brands are using low-quality panels. I checked a few phones. Newer Samsungs don't have this issue.
From what I searched it did popup in S3 when Samsung started using these panels first.
I checked Realme GT ME and MI 11x both and both had the same issue, whereas some old Vivo phones, MI A3, Samsung S5 were perfectly fine.
I think it's just cost-cutting from these brands to use lower-quality E4 panels.

wow... looking to my F3.... i see normal... cant see that very small haloing effect.
Try it with black text on white or white text on black also on setting menu...
Maybe my eyes not good anymore...

Your concerns are absolutely valid and the commentors claiming sharpness doesn't exist are noobs. I've had the same issues with Xiaomi phones. It's a little like a lottery. For the same model, some devices can get a high quality display and some units get a lower quality display where you can see it to be overtuned or artifacts.
Or there could be another possibility as widely discussed, Xiaomi takes displays from multiple manufacturers but ends up using the same fine tuning values for all the units of the model, for Eg Poco F3. As a result, your friend can have the exact same device and a perfect look display while you are left with a shady display with issues.