The device is excellent (my first Xiaomi device), I don't think it has any flaws. I'm saying all this even though mine got stuck with a permanently lit pixel on the screen in blue color after about a month (it had happened to me before with a Samsung, but after two years of use. I believe it's a random occurrence, a slight material defect that bothers slightly when you have a black background and you have your eyes on it). Now, in detail:

Advantages: Beastly processor, very fast, didn't freeze anywhere or in anything.
The screen has very beautiful colors, it must be one of the good AMOLED ones, bright with great visibility even in direct sunlight.
Cameras (I also installed GCam) take very nice photos (especially with the 108 lens), impressive videos at night, I haven't tried zooming yet.
Impressive stereo sound, excellent music performance.
In-display fingerprint sensor works 9/10 times instantly and with all three fingers that I have programmed.
Battery (I don't play games but I use it a lot) easily lasts for a day, comfortably enough to watch a movie at night. I haven't tested it for a second day, I charge it for about half an hour every night and it reaches 80-90% (very fast charging).
Disadvantages (subjective):
It charges Turbo (5400 mA with the Ampere app) only with its own cable and charger. With a higher quality certified cable at 5 A, it didn't reach such performance. With other chargers and cables, it either doesn't charge at all (with regular chargers) or charges at 3000 mA with frequent charging interruptions (momentary).
Heavy construction and large size, difficult to handle with one hand

First time I buy such an expensive phone (490 euros) but because I don't change often and because for 4 years I had the Sony XA1 which was the worst I have ever used, this time it made me buy something that I will keep for a long time and will do everything. I had been searching for a phone for months and comparing Xiaomi because no other brand offers much while giving "little". I looked at it, looked at it again, and bought this one and it's awesome. I have had it for a month now. Beautiful phone. Twilight Grey color that looks more like light blue and version with 256GB ROM (Does not take memory expansion and I read that the 108 MP consumes a lot of memory with photos and videos so the 256 is the only option) The first time you hold it, you realize that the phone is not mid-range but flagship. Very good screen resolution. The battery lasts a day with heavy use. The amoled screen is excellent, especially for me, who was using a phone with such a screen for the first time. 90 Hz refresh rate that makes everything smoother. It's the first time I have a phone with a high refresh rate, so the fact that there are 120 and 144 doesn't mean anything to me, and because I have researched these numbers, it consumes a lot of battery. Of course, the truth is that in this phone I expected the battery to last much longer, but if you think that it lasts a day with heavy use, with the Always-on-Display working from morning till night and constantly at 90Hz, it's logical that the battery won't last for 2 days. With normal use and again at 90Hz and AWD, the battery lasts 2 to 3 days. Also, you should know that 5G consumes more battery than 4G, so if you want to save battery, turn off 5G and it's better to have it turned off since it doesn't exist yet in Greece. Awesome processor Snapdragon 865, the best of 2020, and 8GB RAM DDR5 with 5G. You don't need anything else. It plays everything, does everything, doesn't lag anywhere. The phone actually charges in less than an hour. And if you think that Xiaomi says it goes from 0 to 100 in 57 minutes, it takes about 45 in reality because no one expects the battery to reach zero. The speakers are very good and loud, with high-quality sound certification. I bought headphones with Type C port, which are also very good (MI ANC & Type-C In-Ear Earphones for those interested). The camera is excellent. The only thing I would like is for it to have more zoom and for the case that comes with the phone to be more flexible because it's just right for the phone, making it difficult to put on and take off, and I'm afraid of causing damage in the end.

The only serious problem I want to address, but Covid doesn't allow me, is that a few days after I got the phone, I noticed a scratch in the middle of the screen that I have no idea how it happened and if it happened by me. With Gorilla Glass 5 for protection, it seems unthinkable that I managed to scratch it somehow, while my Sony phone that I had for 4 years and dropped multiple times didn't have any issues. The representative of Xiaomi in Greece is Infoquest, which is only in Athens, and it is impossible for me to send the phone for them to check, especially during this period when I have exams and the only camera I have is the one on the phone. Maybe I got a defective protective cover, I don't know how this could have happened.

Except for the issue that arose for me, the phone is worth its money and more. No other company offers such specs for 500 euros. If you have the money, get it or wait for the Mi 11 that is coming soon and starts from 500 euros as it sounds.

My first review that I am posting and I hope to cover you in case you are considering buying this particular model.
Let's go:
POSITIVES: 1) Tremendous screen, with very good brightness and of course the 90hz refresh rate is noticeable when coming from a 60hz screen like mine. I don't know if the difference is the same from 90 to 120, but yes I believe that the 120hz refresh rate is not extremely important yet.
2) Camera. As a resolution, it is very good for average use, I can even say excellent. Of course, it is neither a professional camera nor does it have the capabilities of a much more expensive model. However, there are many features that Xiaomi has added (e.g. Photo/Video Clone or the use of the front and rear cameras, which are very nice options). If the main buying criterion for you is the cameras, then this phone is definitely not for you, but it will not disappoint you. I do not work professionally in the field of photography, but as an average user, I am completely satisfied.
3) Battery. I expected much better durability without meaning that it is disappointing. It lasts about a whole day depending on usage. Personally, it gives me 5 and a half hours of screen on time and several hours on standby. Coming from a 4200mAh battery, I expected something better, BUT let's not forget that it is a 5g phone with a 90hz refresh rate, so these play a significant role. Obviously, it doesn't make sense for someone to switch it to 60hz, it's day and night. As for the positives of the battery, I add that it has wireless charging and reverse wireless charging.
4) Software/processor. Very good, Xiaomi has made leaps in the right direction since the last device I had a few years ago (Redmi Note 7) and it is very smooth without the many bugs it used to have. It is not the best, but it is certainly very good (in some points, it copies the corresponding iOS, especially in the shortcuts menu). As for the processor, even though the 888 Snapdragon has now been released, the 865 is still incredible. There are no amazing differences, especially with the new one. And in general, whether for simple use or for games, it performs excellently.

NEGATIVES: 1) Fingerprint sensor. It showed a problem from the first day of purchase from a well-known store, I took it to a technician and it was not fixed (!!!). Of course, this does not generally have to do with the model, it just happened to me and I have to tell you in case it happens to others.
2) Heat. Pay attention to the temperature because it rises relatively easily. Especially if someone plays games for a long time or if you notice during charging, it reaches high temperatures. It does not affect its operation as far as I have seen, but I did not expect it to reach such high temperatures and that's why I mention it.
3) Size. This is not objective, I just mention it because we do not all have the same palm size. It is not a phone that you can handle with one hand to write, as the screen is large. Personally, I like it because it has a better view for videos and Netflix, but for some, the size of the phone may be considered a negative.

Overall, I believe that for its price (purchased at 550), and up to 600, it is worth it as you get one of the best processors and graphics cards, and it has LPDDR5 RAM and of course it is compatible with 5g networks that have already arrived in our country. I was torn between this and the Mi 10T Pro, but I was won over by the AMOLED and the wireless charging that the Mi 10 has. There is no competitor to it at this price and of course I wouldn't go for an LCD panel no matter how good they advertise it. I hope I helped you!

When coming from Huawei P30 Pro, the expectations are high. The phone clearly belongs to the mid-range category with a flagship price.
Let's start with the positives.
Its screen is bright with good colors.
Fast fingerprint reader.
The processor is very fast.
The stereo sound is good but not very loud compared to the pro version.
Positive presence of an infrared port.
Here is where I stop with the positives and move on to what I don't like.
The battery is terrible. With full data usage, 90Hz screen, almost no games, a little browsing and YouTube, it is drained by early afternoon.
These are always in comparison to the Huawei P30 Pro, which would go to sleep with 40% battery.
The main camera is good in daylight. However, the file size is very large. Night photography is bad. In wide-angle shots, you'll be lucky if your finger doesn't appear in the photo since the lens is positioned very low.
I don't take many videos, so I don't have an opinion on that.
The phone is bulky and heavy.
Furthermore, MIUI is an absolute chaos. I had been used to a much simpler and user-friendly user interface for many years.
Unfortunately, the choice to purchase was a mistake.

Guys, I've been a holder here for 10 days! Coming from a Galaxy S9! Whatever I say is not enough, really, especially considering the price I found it for, €485 for 256GB Coral Green! This phone is truly value for money... it can easily be compared to flagship phones from other companies! Amazing screen! The battery lasts me a day and a half with heavy usage! Charging from 0% to 100% takes 50-60 minutes! (which is great because if you don't have time, you can charge it for 15 minutes and it will charge 30%!)
The sound is amazing with dual speakers, just like I had on the Galaxy S9!
Overall, guys, especially at this price, I am really satisfied and I hope to remain so! Coming from years of owning many iPhones and making the first transition to Android with the Galaxy and finally the Xiaomi Mi 10!
I just want to reiterate that the money you spend on this phone with its features is in-cre-di-ble!
The only negative thing I can think of is the camera because I haven't really explored it much due to the fact that it has many options and settings! (it requires some exploring)
I hope I helped)️

I have been using the phone for a month now, coming from a Samsung Note 3 (absolutely satisfied and after 6 years without any problems). Of course, the Mi 10 is a star so far. The cameras are amazing for both day and night photos. The video is fine, although it struggles in low light conditions (we shouldn't expect professional camera quality for €2000). As for the front camera, it is good to average in lower light. The speaker is indeed stereo and powerful. The battery is okay... It lasts me a full day of use with Wi-Fi internet and social media, although I expected something better considering the battery capacity and the fact that I use it at 60Hz and with dark mode for power saving. Although I didn't want to spend so much money on a phone, so far it seems worth it... Hopefully, it will last like my previous one for 6-7 years without any problems, considering the €680 I paid. The price is quite high for a Xiaomi, which had taught us to expect very good budget devices... (Without Google services on Huawei, Xiaomi was able to raise prices)
I should mention that fast charging is a plus and it doesn't seem like a problem if you need to charge it for a short while during the day (it goes from 40% to 60% in 15 seconds).
I have a problem with the screen protector (tempered glass) not fitting well and sliding because the screen curves slightly to the right and left.