I've had the Mi4i for about 2 and a half years, having purchased it online and used it in the UK. Out of the box, it was a pretty handset and the UI was smooth. The camera was average and at that point, the only reservation I had were the reports of overheating and the lacklustre storage capacity: realistically, only around 9GB.
Once I started downloading apps and games, the very real threat of overheating became apparent, so much so, that on a long car journey during which I used Spotify, Google Maps navigation with bluetooth on and the screen on maximum brightness, my handset overheated, switched off automatically as a precautionary measure and wouldn't restart until it had cooled down. There seemed to be no damage to the internals, except for a mosaic of green pixels now visible across the entire screen whenever a solid, dark colour is displayed.
Ever since then, updates to the handset have ensured the phone does not overheat. The updates themselves have been decent and fairly frequent, all things considered. I remember one update made UI navigation very, very choppy, to the extent that it rendered the phone unusable. Fortunately, downgrading the MIUI version is very easy. Respect for Xiaomi for bothering to release updates for these old phones, by the way!
Today, the phone functions reasonably well; it's a perfectly serviceable Android phone. Sadly, the Lollipop Android is now becoming outdated for my uses, with a number of applications unavailable to me and certain applications have become slower and slower. Concrete examples include MIUI's Second Space being practically unusable and how on some web pages, browsers slow to a crawl very frequently.
An issue perhaps only relevant to my phone, thanks to the previously mentioned damaged screen, are ghost touches and other screen-related glitches. They occur very frequently and are remedied with a reboot. I put this down to my handset, however, and I doubt this is symptomatic of all Mi4is.
You want to buy this phone in 2018? Here are some positive aspects.
I find the look of the phone charming. Moreso with the Mi4c thanks to its colours (it has better specs, by the way). There's something quaint about having a plain white plastic case with a large black screen. The pastel colours of the Mi4c would look even better. This was actually a criterion of mine when I first purchased this phone. At the time, I had gone into a shop and handled the iPhone 5c. I preferred its simple plastic build, when compared to the fancy metal one of my HTC, or the glass and metal of other iPhones. Perhaps the only reason I turned away from iPhone was the daunting price tag, considering its specs and features. I think I made the right choice.
In the past 6 months, I've been using the Mi4i without a case and the slippery nature of the build has resulted in me dropping it... a lot... on concrete, tiles, wooden floors etc. There may be chips and scratches on my phone now, but functionally, there has been no change and at the very worst, the sim tray releases, so all you have to do is push it back in and you're good to go.
Sticking with the plastic build, I haven't carried out tests for this, so it may be at best anecdotal evidence, but I find my wireless reception outperforms other handsets in my household, namely the Samsung Galaxy S7 and the Xiaomi Mi5.
The very latest update (rolled out only 2 weeks ago in my case) has been a good one, bringing features present on much newer phones to this tired, old one. Unless you fancy playing around with other versions of Android, you'll be stuck with Lollipop, though MIUI does make that a little less painful.
Should you buy it? Unless you pick it up for very cheap with a clean screen, don't bother. There are far more compelling purchases available. If you like the aesthetics of this phone, go for a Xiaomi Mi4c. In fact, when I was first thinking of replacing my Mi4i, I looked for the Mi4c, but couldn't find it at reputable vendors for a good price. If you're not interested in these criteria, you should look elsewhere.
It was a nice, cheap handset aimed at a market entirely different to my own. It resonated with me and in some respects, I'll be sad to see it go. From now on, it will sit in its box on top of my wardrobe and wait until it will be called upon, its function now a spare phone.
Third class product, phone hangs, UI stops suddenly, camera stops suddenly, phone reboots ig you start net and other some application/ talking
This device is awesome and in good condition but I am facing hanging issue and battery issue also
for ex; my device charge is 75% , now I restart the device means now the device charge shows that below 30% ....
Abbas, 03 Dec 2017hi
when MIUI 9 will it be released?it is coming soon in january but sadly after that there will be no updates for mi4i . xiaomi has officially stopped te updates for mi4i. performance is still not that great on miui9 so i use a custom rom running on nougat. THATS PRETTY FAST BUT ONLY THING I MISS ON THAT ROM IS CAMERA.
EdJames, 07 Nov 2017i'm using xiaomi4i, is it okay if i update to MIUI 8? i need some opinions.for me, miui 8 is working well, no issues at all on my 4i.
i'm using xiaomi4i, is it okay if i update to MIUI 8? i need some opinions.
i got the Mi 4i for about 3 months now. Its a Solid entry level phone. Battrey is good for me. i last 1 day with moderate social media Usage (Whatsapp,Twitter,Pintrest). Screen resolution is also good for phone is also good for phone of this price. Phone Charges Fast. MIUI 8 is working well on this phone. i will def recommend if you are looking for entry level phone.
Awesome device but in this website GDM shows that this device supports volte and also direct video call but its not true i am using miui 9 beta so there is no update for miui 9 and also volte and Volte ....
my mi 4 front camera is not taking clear pics its picture quality goes worst in recent days
Such a waste of money. It is screen quality is so poor. If u drop it down may be by mistake. It's screen is gone. And everytime u send it for repair even in local shop. They will cost u more than 2k and if sent to mi stores. You can guess by yourself. Heating problem is thr. Memory problem is thr. U can't even insert a micro sd card. Never going to prefer this phone again