At A Glance


Great design with a metal frame
Flagship specifications
Vibrant display
MIUI is an unique take on Android
Better than average battery life
High resolution front-facing camera


Mobile networking can be spotty with HSDPA version
Unremarkable overall camera experience
MIUI is not for everyone

Bottom Line

The Xiaomi Mi 4 is the new creation of China’s most popular phone manufacturer, and we were anxious to check it out. What you get in the Mi 4 is a great example of Xiaomi’s ability to create a flagship – this time, with a metal frame. Plus, it comes in at a pretty great price.


Xiaomi is one of the leading OEMs in its home country, but the Chinese company has been pushing for a wider global audience. After finding success in emerging markets in Asia, Xiaomi is now hoping to continue that run with its latest flagship offering, which, at least on paper, should give the current crop of high-end flagships a run for their money. Whether it manages to do so, and more, is what we find out as we take an in-depth look at the Xiaomi Mi 4!

xiaomi mi4 first impressions aa (10 of 13)

The Xiaomi Mi 4 joins a growing list of smartphones, particularly out of the Chinese market, that are starting to feature some metal in their build. While it’s not the full unibody metal construction that you’d get with the HTC One (M8), the metal skeleton of the Mi 4 contributes not only to the sturdiness of the phone, but also to its good looks. The buttons on the right side are also metallic, with the placement of the power button below the volume rocker making it very to reach. Up top is where you’ll find the headphone jack, with the microUSB charging port and a speaker placed on the bottom.

xiaomi mi4 review aa (6 of 19)

The rest of the build material is a glossy plastic, which makes the phone a little slippery, and a little bit of a fingerprint magnet. That said, the size of the phone makes it very easy to handle, with the flat sides of the metal frame allowing for good grip. The 5-inch display has relatively thin bezels around the sides, adding to the slenderness of the device, and one-handed use is also a breeze. The capacitive keys are found below the screen, along with an LED light, that is active when charging the phone.

xiaomi mi4 review aa (3 of 19)

Handling the Xiaomi Mi 4, you definitely get the feeling that it’s a sturdy device, and while the look may be somewhat unoriginal, that doesn’t mean that it doesn’t look good.

xiaomi mi4 review aa (11 of 19)

The Mi 4 features a 5-inch 1080p display, resulting in a pixel density of 441 ppi, numbers we’d certainly expect from any device that is hoping to compete with current flagships. Colors are quite vibrant, and the contrast allows for some deep blacks, making media consumption and even gaming every bit as good as they should be. Viewing angles are great too, with the image losing fidelity only at extremely sharp angles.

xiaomi mi4 review aa (9 of 19)

If you look closely around the screen though, you’ll see a small black line framing the image, which adds to the overall bezel size. It’s not a big deal by any means, and is not as big an offender as we’ve seen on some other displays, but is still something worth making a note of.

xiaomi mi4 review aa (8 of 19)

Under the hood, you’ll find the quad-core Qualcomm Snapdragon 801 processor, clocked at 2.5 GHz, and backed by the Adreno 330 GPU and 3 GB of RAM. The processing package is par for the course when it comes to flagship devices, and offers the kind of power you’ll need to do everything, from work to play, easily.

xiaomi mi4 review aa (13 of 19)

Playing games in particular was a lot of fun on this phone, and I noticed little to no slowdowns in even highly processor-intensive games. One game I got sucked into, Shadow Fight 2, not only showcased the gaming prowess of the device, but also showed off the contrast possible on this display.

One issue I have to mention is that the upper half of the device did get noticeably warm. While the heat did not affect performance in any way, it did make for a slightly uncomfortable handling experience while gaming.

xiaomi mi4 review aa (7 of 19)

When it comes to hardware, we start to see the issues with using a Chinese market smartphone outside its home country. For starters, this version of the Mi 4 connects only to HSDPA networks, making the internet experience less than ideal for US audiences. This is something I’ve faced with other smartphones in the past, but in the case of the Mi 4, I’ve unfortunately had a lot of connection issues, and have been unable to use mobile networks consistently. That said, a version that is 4G-capable and able to connect to Western mobile networks is coming soon, which is great. When I did find some connectivity, phone calls came in loud and clear.

xiaomi mi4 review aa (4 of 19)

The external speaker at the bottom of the device is also capable performer. When listening to music or playing high-calibre games, sound is quite loud and rich, and I didn’t feel the need to reach for my headphones all the time. If you do like to use the external speaker for media consumption, you won’t have much to complain about. When it comes to storage, 16 GB and 64 GB variants of the Mi 4 are available, but there is no microSD support.

xiaomi mi4 first impressions aa (8 of 13)

The issue of poor network connectivity unfortunately made it difficult to have any conclusive battery testing, so instead I’ll talk about my day to day experience with regards to battery life. Standby time seems to be really great, and letting the phone sit idle for almost an entire day didn’t dent battery life. I did do one specific test using a looped season of a TV series at half brightness and volume, and while the phone died before I could get a screenshot of the battery usage, it definitely took at least 8 hours to reach single digits.

xiaomi mi4 review aa (19 of 19)

The Xiaomi Mi 4 comes with a 13 MP rear facing camera, and an impressive 8 MP front-facing unit, with the latter being above and beyond anything we’ve seen from popular flagship smartphones.

The software interface is pretty simplistic, and can be changed from a basic to an advanced mode. The advanced mode does add some settings, but switching to it mostly removes the icon labels. Ultimately, functionality is on par with other high-end smartphones, and includes a panorama mode and even a selective focus mode if you want to play with the depth of field.

xiaomi mi4 review aa (14 of 19)

Camera quality is about as standard as you’d expect. In broad daylight, the camera captures detail well, though it might produce the occasional photo that is too bright. The quality starts to taper off once indoors, with grain appearing and getting exponentially worse as the conditions get less than ideal. Colour also loses fidelity in darker situations.

xiaomi mi4 review aa (15 of 19)

The 8 MP front-facing camera does produce some nice large photos, but its colour reproduction leaves quite a bit to be desired. Selfie lovers might love the higher megapixel count, but it  doesn’t bring anything extraordinary to the table.

xiaomi mi4 review aa (12 of 19)

The real difference between the Mi 4 and any other flagship device comes to the fore in the software department. While it’s based on Android 4.4 Kitkat, much of what you’d expect from an Android-based OS is turned on its head on the Mi 4’s MIUI software.

xiaomi mi4 review aa (2 of 19)

The biggest departure from the norm is the lack of an app drawer. Bubbly icons sprawl across all the homescreens, and the only way to organize them is to use folders. Keeping a clean interface is possible, but if you download a lot of apps, it will take some effort to keep things clean and organized. That aside, menus take on the same simplistic but attractive style, and just about everything moves about in some interesting transitions.

xiaomi mi4 review aa (16 of 19)

Diving in deeper is where you’ll find quite a lot of customization, which makes MIUI a hybrid of sorts, where you’ll find the rigidity of iOS style homescreens, combined with Android’s customization prowess in any other aspect. A powerful theming engine offers a slew of themes and options to personalize your device.

The notification dropdown can also be customized by a good amount, with the option to sort icons in rows or grids, and even to show certain additional information, such as your current bandwidth speed. Long press functionality can also be programmed for the capacitive keys.

xiaomi mi4 review aa (18 of 19)

Google Play Services are not available with the Chinese version of the Mi 4, but it’s not hard to install it yourself, and luckily, the Play Store was pre-installed on my unit out of the box. It’s nice to have to ability to install your own apps, but I did see the Play Store crash quite frequently. Xiaomi’s own apps are still in Chinese here, making them impossible to use for anyone who can’t read the language.

xiaomi mi4 review aa (1 of 19)

At the very least, you can say that MIUI is continually improving, with updates available on a weekly basis. Ultimately, it’s a very attractive operating system that takes a different approach to Android, and shouldn’t be discounted just because it doesn’t have an app drawer.

Display5-inch IPS LCD, 1920 x 1080 resolution, 441 ppi
Processor2.5 GHz, quad-core Qualcomm Snapdragon 801, Adreno 330
Storage16/64 GB, not expandable
Camera13 MP rear camera, 8 MP front camera
ConnectivityWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, Bluetooth 4.0, IR Blaster
Battery3,080 mAh
OSMIUI OS based on Android 4.4.3 Kitkat
Dimensions139.2 x 68.5 x 8.9 mm, 149 grams

The Mi 4 isn’t widely available just yet, but if you do want this phone right now, the currency exchange will make it about $350. That is definitely a great price for a device that has a lot to offer, which is the best way to describe this Xiaomi Mi 4. Of course, you’ll have to make sure first that the device works on your mobile network!

xiaomi mi4 review aa (5 of 19)

So there you have it, our Xiaomi Mi 4 review! In the end, this smartphones is another good example of how the Chinese mobile industry is trying to show the world what is capable of. And, in this regard, the Xiaomi Mi 4 is a proof of success. You get a package that is easy on the eyes, and easy to use, thanks to the somewhat controversial take on Android called MIUI.

Related: Protect your Xiaomi Mi 4 with these cases

We’re seeing a new batch of metal-clad smartphones in the Asian market, and it seems that they’re all coming to the US, one way or another. In the case of the Xiaomi Mi 4, we’re off to a good start.

Joshua Vergara
Writer, blogger, and videographer - Josh is a former support technician that learned much about technology by fixing everyone else's. On the side, he wrote and performed spoken word, maintained his own personal blogs, and began his own video podcast. Now, he's here at Android Authority looking to put it all together!
  • John

    Sends your personal data to China

    • Luka Mlinar

      You already send everything to the NSA. Might s well send it to China too.

      • uriejarafa

        “It don’t matter if you’re black or white”.
        ++++++ ♥ Mixed M a tching . c/o/ m ♥ +++++ =BEST Online Mixed Dāting SITE ..Over 1700000 active members from local and worldwide.
        Join date black women, white men, blackmen and white women. The convenient and safe way to date other cultures and races online. If you want to look for people with which you can date, you are at the right place. With a brave heart to love. This is a paradise where love is color blind. zbzxbzxb

    • Happy

      Who cares about your personal data? :-) The only thing, that they can do with it, is statistics.

      • metron95

        What if your country’s army personnel are using it? China is known for their cyber attacks on both india and america. Can you trust the chinese?

        • Don DeFrost

          Pretty much everything you do on an android ends up with the NSA, the Chinese aren’t any special. If anyone is out to get you, they will get you. Eventually. Now that’s the beauty of android.

  • Balvinder Makkar

    Joshua during indoor photography did u try changing iso setting and exposure will make a pic alot better.
    I did this with my mi3 and difference was noticable.
    This heating problem is in mi3 also. I dont know why that after so many consumer complaints they are not looking into this.

  • Bone

    Did you really put MIUI in the cons?

    • Luka Mlinar

      Not having a Play Store installed is enough to justify putting MIUI in the con section. Don’t even try posting a reply saying how you can ad it later. You can put a turbo in a Yugo, being underpowered will still be listed as a con.

      • Risvegliare R

        but i thought it is only on the chinese version. if international version is out, i think they are going to install play store. Also, in the review states that it’s not hard to install the play store.

        • Luka Mlinar

          It’s not but he also said it crashes a lot. Let’s be clear, this is as far from Android as you can get. Xiaomi is an internet company, similar to Amazon where the point is to sell their own software trough their own version of a play store. All together, to me at least MIUI should be considered a con. At least here.

          • Bone

            MIUI is the best skinned Android UI period. If it’s crashing, it’s because the reviewer tested the model in a market and with software (Play Store) it wasn’t intended for. It’s exactly as if you installed Google services on Amazon tablets and complain about compatibility issues. MIUI itself is some of the most stable and refined UI on any mobile platform. It’s so good it inspired iOS7.

          • Romar

            I own a mi3 and a mi4. Google apps do not crash. working perfectly. International versions of the rom will include google play services. Btw, MIUI 6 is superb. AOSP is not for everybody, too. So might as well put it in the cons of aosp powered devices you will be reviewing. kidding :))

          • Don DeFrost

            Am running an international variant of the MI3 and its impressive. MIUI is a class of its own. :)

      • aquagalon

        Why ? because it’s a Chinese ROM intended for Chinese market. IMHO, It’s not MIUI fault
        I suggest you google search “does china samsung have play store”

      • Lilith_Black

        Would you mind understanding the Chinese market by doing some reading before shooting at it? They have their local version of everything in China (quite a segregated community) — Sina, Weibo, Sogou, Baidu….

      • balcobomber25

        It takes literally 15 seconds to add the playstore to it.

      • Don DeFrost

        After Xiaomi decided to go guns blazing on the international stage, they have removed the Chinese flavour and made it a bit more, what do we call it, INTERNATIONAL! I’m using the Mi3 in India, and I don’t anything related to Chinese at all.. Play store and basic google service does come pre installed. So far, the best Android ex flagship I have been through.

        • Luka Mlinar

          This is why I don’t like it when people comment on 5 month old posts. I have the Mi 3 with a Chinese developer ROM. Had the Indian one installed as well. Love it but until Xiaomi puts the app drawer in their OS, it will be forever branded Chinese and not International.

  • jack

    jesus.. those folder icons look EXACTLY like iOS 6’s folder.. pathetic. the green phone icon is just a display of “we need apple’s guidance”.

    • Shubham Singh

      really only the folder thing reminds you of iphone.

    • Pals

      Don’t forget the non-expandable storage and non-removable battery. They really follow apple guidance

      • aquagalon

        are you talking about nexus devices ?

    • Don DeFrost

      You mean the highly overpriced devices Apple sells all the while you pretend to buy them as fools? Likely.

      I don’t see apple having a problem with though since the company is prepared to go to war for absolutely anything.

  • Gopal Bhaire

    With MIUI 6 it only gets better…

  • vivzZ

    MIUI comes preinstalled with Play store and other google apps in all the international versions. IT has both the MI app store and play app store. MIUI is much frugal as compared to touchwiz and other such custom apps used by other OEMs!

  • Sonam sheath

    To buy the new Xiaomi phones, please log onto

  • Karly Johnston

    I wouldn’t buy it now mainly for LTE support, but that will be fixed. Google Play crashing greatly concerns me. Then you have to pay over $100 markup makes this not such a great deal.

    • Romar Cabinta

      Google play works perfectly on my Mi3 and Mi4. They may have installed it wrongly lol

    • balcobomber25

      I have owned multiple Xiaomi phones and never had a problem with Google Play. There isn’t a $100 markup I have no clue where he got it from. Xiaomi’s own store ships it internationally for under $400. That is still $200 cheaper (and more) than other flagships in the US.

  • Sense

    Gonna have this awesome phone soon.

  • Rahul Agarwal

    Is Xiomi making a brand for itself in India? coz im watching a lot of Indians(having a general perception of “chinese phone”) going and buying Xiomi on a large scale!!

  • sm1704

    joshua, between OnePlus One and Mi4, which one you will recommend?

    • Lilith_Black

      Mi 4 —
      Pros: Easier to get, fantastic battery

      Cons: You are most probably stuck with MIUI (RedMi didn’t get the Mi 3 kernel released for devs — roms aren’t going to be great in terms of compatibility — you can find unofficial CM11 for Mi 3 on XDA)

    • Rahul

      Go for Mi4 If you can install other roms but first find good roms for it.
      OnePlus One is better it comes with CyanogenMod 11S so no need for other roms.

  • trupti

    M I