Xiaomi Mi LED TV 4X PRO 55 Review

We don’t normally review televisions here at GSMArena. However, as we review most of the other products Xiaomi releases, it’s hard not to look at and be fascinated by what the company has been doing in the television segment for the past couple of years.

In case you are not aware, much like the smartphone market, Xiaomi has pretty much disrupted TVs with its series of Mi TV models, which offer features and performance at a price that you couldn’t even dream of a few years back and has caused other manufacturers to stand up and take notice.

So when Xiaomi decided to send us its latest Mi LED TV 4X PRO 55 model (seriously, this thing just showed up one day), we had to set it up and see for ourselves what has gotten everybody falling over themselves to recommend these to everyone on the market for an affordable new TV.

So here we have the new Mi LED TV 4X PRO 55, which henceforth I will just refer to as the 4X PRO otherwise we will be here all day. It’s a cheaper version of the company’s flagship Mi LED TV 4 PRO 55, which has a similar size and resolution but a much sleeker design. While the 4 PRO was already great value, the 4X PRO is even better as on paper it seems to have everything from the 4 PRO but in a slightly worse design and a lower price. A compromise most will happily accept.

So for INR 39,999 ($560), we have a 55-inch 4K HDR television running Android TV OS with built-in Chromecast support. If all that interests you, read on to find more.


The 4X PRO packaging is basic. Usually, large televisions come in a box that can be slid up after unlatching it from the side and the TV is sitting in the base of the box. The 4X PRO comes in a standard box, where you have to slide out the TV out the top manually, either straight up or by tilting the box sideways. This makes it a two or even three person job, considering the size of the TV, and a super inconvenient process.

The packaging is also quite minimal. Alongside the TV, you find two of its plastic feet, a Bluetooth remote, screws for the feet, and a “user manual”, which is just one leaflet. You don’t even get batteries for the remote.

Setting up the TV after that was relatively easy. I went with the tabletop setup with the provided feet, which can be attached with the supplied screws. The TV has a power cable attached to the back. Once everything was plugged in, it was good to go.


The 4X PRO has a fairly minimal design, to the point where there really isn’t much to talk about. The design, or at least the part of the TV you see that isn’t the panel, is just a thin gray bezel all around and the two feet, both of which are minimal and inoffensive. The bezels are not as thin as on the 4 PRO but they are still a fairly small part of the massive front surface of the front of the television and are barely noticeable.

The feet go at the ends of either side and sit very close to the edge of the panel. This means you need a surface that is as wide as the TV itself to keep it on. You could alternatively invest in third-party stands that connect via the VESA mount on the back if you have a narrow table or just wall mount it.

Viewing from the side, the 4X PRO is obviously chunkier than the 4 PRO but not significantly so. If you wall mount it, it will still stick fairly close to the wall.

What’s frustrating about the design of the 4X PRO is the positioning of the ports. The HDMI and USB ports are side-facing and point the right side of the TV. The other ports face down and are inside an alcove on the back near the center of the TV. The problem is, they are all fairly close to the middle of the TV, which in case of a 55-inch is a mile away from the side. This makes reaching the ports a herculean effort. Even the HDMI ports on the side are a full arm’s length away, making plugging things in a challenging affair.

The ones pointing down inside the small alcove are damn near unreachable unless you are standing behind the TV. Whatever you have to connect there requires you either plugging in before the TV goes up on the wall or removing it from wherever it is to plug in. This TV almost necessitates a moving wall mount that allows you to pull the TV forward, at least if you foresee yourself accessing the back panel often.

The display on the front is somewhat glossy and a fair bit reflective. This means when it’s not on or when displaying a black screen in a reasonably lit room, you basically have a 55-inch dull mirror sitting in your living room.

The power button is placed underneath the TV right in the middle. There’s also a red LED there that only briefly turns on when you press the button but then stays off. It’s off when the TV is on and it’s off when the TV is off. It basically fails at the one purpose it has, convey the power status of the TV when it’s off but plugged in. The TV also has no other buttons other than power, so if you lose the remote then, well, good luck.

The remote has its own set of quirks and features. It uses Bluetooth to communicate with the TV, although the TV itself does have an IR receiver so it can work with other remotes as well. The remote has 12 buttons on it, none of which are mute. To think Xiaomi put two home buttons on this thing but didn’t feel people may want to mute the audio sometimes.

The two home buttons, in this case, are for Patchwall, Xiaomi’s UI layer that has now been relegated to just a launcher, and the actual home screen of your Android TV interface. The buttons are all well-laid out and easy to use in the dark and there are no touch surfaces that you can trigger accidentally while picking up the remote. However, the design is annoyingly similar to the remotes of media players, such as Fire TV or NVIDIA Shield, so there’s a lot of accidentally picking up the wrong remote that you will have to get used to.


The 4X PRO has a decent amount of connectivity, which includes 3x HDMI 2.0 ports, one of which supports HDMI ARC. The annoying part is that you have to enable HDMI 2.0 individually for each port from the settings. There’s also composite RCA input, SPDIF coaxial output, Ethernet, 2x USB 2.0 and terrestrial TV antenna input.

Where it lacks is in audio output ports. While modern systems do use HDMI ARC and that is the best way to get uncompressed audio out of the system, older systems do still use optical TOSLINK connector and some even older still use the standard 3.5mm line out, none of which are present on the 4X PRO.

On the wireless front, TV also supports dual-band Wi-Fi and Bluetooth. You can pair Bluetooth headphones with the TV and it works as you’d expect.

Hardware and Software

The 4X PRO has a 55-inch, 3840×2160 panel capable of 10-bit color. There is no definitive panel type for this television and talking to Xiaomi led me to believe depending upon your luck, you could end up with either an IPS or a VA panel. The panel on our review unit was most definitely an IPS based on a few factors, including this macro view.

The panel is also capable of HDR, or to be specific, HDR10. There is no Dolby Vision or HDR10+ support.

In terms of audio, you get dual 10W speakers located on the bottom of the television that fire downwards.

The 4X PRO runs on an Amlogic chipset with a quad-core Cortex-A53 CPU and Mali-450 GPU. You also get 8GB of eMMC storage and 2GB memory.

The television is based on the Android TV platform, version 8.1 Oreo. While Pie has been announced and released for Android TV, it’s not yet available here and there’s no information on when it will be released.

In terms of UI, the experience is very similar to most other Android TV-based televisions. It’s clean and easy to use with some level of customizability, although not remotely as nice as the Apple TV UI. One bit of absurdity is that you can’t access picture quality settings while within any of the apps but apart from that it’s a relatively user-friendly system compared to what we used to have on TVs not too long ago.

Android TV UI Android TV UI Android TV UI Android TV UI Android TV UI Android TV UI
Android TV UI

There’s also the Google Play Store that’s available, which gives you access to some apps that you may want to install. After a look around the place, it becomes quickly apparent there’s really not much here to download and that it’s a mere shadow of the store that’s available on smartphones.

The TV does come with some of the Google apps installed and a couple of apps for viewing images and videos but apart from that, there’s little to no bloatware installed.

While trying to find some apps to install, two apps of note that were missing were Netflix and Amazon Prime Video. While Netflix does have an app for Android TV, it’s not available to everyone and the television needs to be certified by Netflix to have the app. Amazon, meanwhile, has no app for the Android TV.

The 4X PRO also has built-in Chromecast functionality, that lets you cast any compatible app to the big screen. Unfortunately, while Netflix does support casting, I couldn’t get it to work with this TV. The Netflix logo appears on screen, it tries in vain for a few minutes to try and stream the content, and then gives up and unceremoniously dumps you back on the home screen.

One last part of the software experience I want to talk about is Patchwall. While it was basically the entire UI when Xiaomi initially launched its televisions based on regular Android, Patchwall got relegated to just a launcher when the company switched over to proper Android TV. When you set up the TV, you now end up straight into the Android TV home screen. The TV notifies you about Patchwall every now and then but you can always ignore it. There’s even a button on the remote dedicated to Patchwall but you can ignore that as well.

The reason I say this is because there is little to no reason to use Patchwall anymore. The UI is not all that well-designed and it’s just littered with stuff from Xiaomi’s content partners. I get it; it’s how they manage to sell their TVs for so cheap and I haven’t yet seen any ads or anything more offensive anywhere else within the UI. But I’d rather just plug in my own sources.


To test the television, I used a variety of sources, including Amazon Fire TV Stick 4K, Sony PlayStation 4, and a Windows 10 PC. Some of the testing was also done using files on an external storage media played on the TV itself as well as streaming done from within apps that come installed on the TV. Color testing was done using a DataColor Spyder 5 Elite and Calman 5 software.

Starting with the SDR performance, the initial impressions out of the box were underwhelming. The TV comes set with a ridiculously cool white point and the sharpness is turned up way too high. Making some minor changes in the settings improved things dramatically.

With minor adjustments, the SDR performance is pretty good and borderline impressive when you consider the price. Unfortunately, it’s far from ideal and that became clear when the panel was tested for color accuracy.

Under Calman 5 color checker, the panel exhibited pretty large color inaccuracies, with an average deltaE of 4.4 and a maximum of 9.1. For context, a dE of 1 and below is considered ideal and 3 and above is when you start noticing the difference. The white point was also pretty cool even after it was adjusted.


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