What is NFC in Mi Band 4? How to use the NFC feature? Learn here. Mi Smart Band 4

What is NFC in Mi Band 4? The NFC feature allows user to make payments in the nearby devices. Learn how to use the Mi Band 4 Chinese version. Find out.

Subscribe to Notifications

The Xiaomi Mi Band 4 comes in three incredible variants such as the Mi Band 4, the Mi Band 4 NFC Support and Avengers Mi Band 4. All the three variants have several alluring features which not only allow users to check their fitness but do more than that. The Mi Band 4 NFC version brings forth a new payments feature for the first time in the Mi Band list.

What is NFC in Mi Band 4 NFC version?

The NFC stands for Near Field Communication which allows devices to exchange data. However, in this process, there are no wires attached but the devices need to be equipped with an NFC chip. For this process to take place, the devices need to be in a distance of few centimetres.

Mi Band 4 NFC Global. ТЕСТ, ОБЗОР, ПОКУПКИ. Теперь и в Украине! Как настроить и использовать?

In the Mi Band 4 NFC version, Xiao AI is a Chinese voice assistant and can control several other features like setting a schedule, setting an alarm, playing music, and now the Mi Band 4 NFC Chinese version also supports payments feature. This innovation by Xiaomi has enabled a user to pay for tickets, grocery and more using AliPay and WeChat Pay. However, this feature is of Mi Band 4 NFC Chinese version is of no use because the Alipay contactless payment and access control are not possible outside of China and it does not support the GooglePay features.

How do I use the NFC in Mi Band 4?

The NFC functionality is found in the Menu Panel of the Mi Band 4. Before starting to use the NFC feature in the Smart Band, a user needs to configure the payments setting through the Mi Fit app. After that, an individual can use the NFC feature on your Mi Band 4 by simply searching it on the Menu Panel and scanning the devices. However, this feature is not available outside of China and cannot be used in any other country, and this is the reason why other variants do not support the NFC version.

Xiaomi Mi Band 4: The best value Google Fit companion gets even better [Video]

When I reviewed the Xiaomi Mi Band 3, I was convinced that it was one of the best Google Fit companions. What I didn’t expect was Xiaomi to make what you could consider iterative changes and still make the Mi Band 4 feel like a must-have wearable.

For starters, considering that Wear OS is still really in a state of disrepair, things couldn’t be more different in the fitness Band (or fitness watch) market. Until the Mi Band 4 arrived, I had worn the previous version pretty consistently for the better part of nine months. As a gym and sports companion, it was just that good in my experience.


Refresh with a hint of a revamp

From a distance or at a glance, it’s actually quite hard to tell the Mi Band 3 and 4 apart. It still looks almost identical until you inspect further. The lovely little dimple that acted as the main ‘button’ has been removed — and that makes me quite sad. Instead, you get a small flat circular capacitive touch button. It isn’t quite as nice to use but it works in the exact same way.

The biggest addition is the 0.95-inch color AMOLED display that is a massive upgrade over the 0.78-inch monochrome display seen on the Mi Band 3. I was very excited to see it in the flesh and I was not disappointed. The 120 by 240-pixel display can reach a maximum brightness of 400 nits, which I found was just about enough to view in bright daylight.

I’m not sure if the color display is the reason why the shape of the Mi Band 4 is flatter than the curvier Mi Band 3, but it doesn’t make a great deal of difference. I will say that the flat display is actually easier to use than the curved display with sweaty hands.

Despite quite a substantial increase in display size, the Mi Band 4 still only weighs in at 22g. For something designed for fitness wear, it is just the perfect weight. The silicone strap is also really comfortable. It is pretty much the exact same strap as found on previous Mi Band models. You snap it into the loop that is best suited for your wrist. You can get replacement straps too should they wear out.

I found that on my Mi Band 3, the silicone strap did get a little slack over time. I can imagine the same will happen the longer I wear the Mi Band 4. It can’t imagine it will affect most people though unless you go swimming a ton — as chlorine can make watch straps brittle over time.

The new design retains water-resistance to 50 meters or 5 atmospheres which means the Mi Band 4 is the ideal swimming fitness Band. I must say that I do prefer the slightly more bubbly design of the Mi Band 3 — especially the capacitive button — but I do like the familiar look and feel of the Mi Band 4.

Software Ecosystem

of the same

To set up the Mi Band 4 you’re reliant on the Mi Fit app, which is frustrating as it is feature-packed. It can be linked to your Google Fit account right away, which is nice but in the process of unlinking my Mi Band 3, I now can’t link properly to my Mi Band 4. This issue has affected more than just myself though, as we recently reported.

While that is my problem, the workout tracking features prove to be pretty accurate in my experience. There are some new swimming modes that can help the Band work out your strokes, the distance you’ve covered, calories burned, the exact number of strokes, and then it pumps out a score so you can analyze your own performance.

I will say that the limitations that were found on the Band 3 return here. It’s still disappointing to have so few exercises in-built and trackable. If your workouts involve weightlifting rather than cardio, you might wish to look elsewhere or seek an alternative fitness Band. It is still nice to be able to launch exercises directly from the Band though.

band, feature, learn, here, smart

Given that this is thing has a color screen, you get a few more customization options over the previous gen. Using the Mi Fit app, you can change the main clock face to one of approximately 77 options. I will say that most are utterly horrendous though, which is partly why I stuck with the basic ‘stock’ clockface that displays the time and how many steps I’ve taken throughout the day.

I am hoping that we will see some more customization options in the future but for now, the new watch faces are way better than the limited old monochrome alternatives on the Mi Band 3. Hopefully, if Xiaomi reads this they can up the selection soon.

There are sleep tracking features too, and it proves to be one of the areas where the Mi Band 4 really excels. Some of that is due to the size of the Band, you’re more inclined to keep it on while sleeping than a big, bulky wristwatch. It tracks your light and deep sleep cycles and time awake, then it records it all and gives you a score from one to 100. You can even compare your scores against other Mi Band wearers. I’m not sure what it all means in the grand scheme of things but it is nice to be able to track your sleep patterns.

Other software extras include the ability to schedule screen on times and a night mode. These are great if you want to continue wearing your Band while sleeping but don’t want to be disturbed or disturb the person you’re sharing a bed with by having a blazing 400 nit display at full brightness.

Battery Life

Good, borderline exceptional

Having a color display may have you worrying about the battery life of the Mi Band 4, especially as the monochrome AMOLED on previous versions offered such substantial performance. You don’t need to worry about longevity with the Mi Band 4, as it still maintains a solid 15 to 20 days on a single full charge.

In my experience, after 15 days I still had around 15% battery left. That was with regular heart rate tracking and GPS usage while playing soccer for two hours per week and a 40-minute gym session three times per week. If you were worried about battery life, then you shouldn’t. The Mi Band 4 has excellent battery performance.

Charging takes around two hours for the Xiaomi Mi Band 4 to go from zero to 100%. The new cradle-style charger is so much better than the old two-pin slot that was finicky and frustrating in equal measure. You just have to unclip the ‘main body’ of the Mi Band and clip it into the cradle. It sits nice and securely and although the USB-A cable isn’t the longest, it is fine for charging via your PC or laptop USB ports.


Still the best value fitness Band

Even with a slight price jump, the Xiaomi Mi Band 4 still manages to be the best Smart fitness Band on the market in my opinion. There are competitors from brands such as Honor, Fitbit, and Garmin that offer similar experiences but I feel they don’t quite match the Mi Band 4 because you don’t get any major additions for the sake of around 50.

All-day comfort is a big bonus for a fitness Band, and this is easily the most comfortable option I have tried. I don’t normally like wearing a watch for long periods but it’s the exact opposite with the Mi Band 4. Not having to worry about charging is also another reason why I prefer a Band or ‘tracker’ to an actual watch.

If you already have the Xiaomi Mi Band 3, I still think the color screen alone is enough of an upgrade but for the most part, there aren’t a ton of features that make it completely essential. That said, as a tech gift or intro into Smart wearables, there are few options that offer this level of value and usefulness. You’d be a fool not to consider it.

Where can I buy the Xiaomi Mi Band 4?

The Xiaomi Mi Band 4 is available directly from Amazon for under 50. If you scour the web you can get slightly better deals from import sites like Gearbest at under 35. It’s also available for around the same price on eBay.

You’re reading 9to5Google — experts who break news about Google and its surrounding ecosystem, day after day. Be sure to check out our homepage for all the latest news, and follow 9to5Google on and LinkedIn to stay in the loop. Don’t know where to start? Check out our exclusive stories, reviews, how-tos, and subscribe to our YouTube channel

Xiaomi Mi Band 5 vs. Mi Band 4: What’s the difference and which should you buy?

If you want access to more sport modes, detailed sleep tracking, and more precise heart-rate monitoring, you’ll love the Xiaomi Mi Band 5. You also get two weeks of battery life, 5 ATM water resistance, and a bright AMOLED display. It hasn’t changed much on the exterior from its predecessor, but the other improvements make it a worthy upgrade.

Xiaomi Mi Band 4

Xiaomi has always been committed to offering affordable products that cover the basics and the Mi Band 4 certainly accomplishes that. This fitness tracker will monitor your heart-rate, sleep, and activities. You get six sport modes along with 5 ATM water resistance and 20-day battery life. For the low price tag, you can’t go wrong.

Xiaomi Mi Band 5 vs. Mi Band 4 What’s new?

One year after the Xiaomi Mi Band 4 was released, we already have a new successor. The Mi Band 5 builds on existing features by expanding on important details and adding more perks to the mix. The previous version paved the way for this new model, with a 20-day battery life, 5 ATM water resistance, activity tracking, heart-rate monitoring, and sleep tracking, and it was worth the wait.

DisplaySensorsBattery lifeConnectivityWater resistanceSport ModesSmartphone notificationsSleep monitoringStress trackingFemale health tracking
1.1″ AMOLED, 126×294 .95″ AMOLED, 120×240
3-axis accelerometer 3-axis gyroscope, PPG heart rate sensor 3-axis accelerometer 3-axis gyroscope, PPG heart rate sensor, capacitive proximity sensor
125 mAh, up to to 14 days 135mAh, up to 20 days
Bluetooth LE 5.0 Bluetooth LE 5.0
11 6

Perhaps you have first-hand experience with the Mi Band 4. Maybe you like what you’ve learned about it so far, but you want to level up to more in-depth tracking. The Xiaomi Mi Band 5 does all of that and more. You get some new sport modes, better accuracy, and more detailed sleep tracking. If these improvements interest you, then you should consider upgrading to the new model.

Mi Band 4 NFC. как настроить?

You get more with the Xiaomi Mi Band 5

There aren’t any major changes to the physical look and feel of the fitness tracker. You still get a polycarbonate case with a TPU strap. The display area, however, is about 20% larger on the Mi Band 5 with a 1.1-inch AMOLED display.

If you own the predecessor, you’ve probably had your share of charging frustrations. Previously, you had to remove the tracker from its strap to attach it to the Pogo charger. Fortunately, Xiaomi removed this headache from the Mi Band 5. You can leave your tracker inside of the strap when using the new magnetic charger.

Even with all of the upgrades you get on the Mi Band 5, there’s no arguing that the Mi Band 4 is still a solid pick for beginners who are just starting to track their health and fitness. If you don’t need to track menstrual cycles or stress levels and you don’t mind the fewer sport modes, you might find the Mi Band 4 to be more appealing.

Courtney Lynch is a freelance writer at Android Central. She’s obsessed with all things health, fitness, and music. At any given time, she can be found checking out the latest and greatest gadgets while simultaneously petting her dog and sipping iced coffee.

Xiaomi Mi Smart Band 4 Review

Erika Rawes has written for Digital Trends, USA Today, and Cheatsheet.com and has tested dozens of consumer technology products for multiple tech sites.

Xiaomi Mi Smart Band 4

The Mi Smart Band 4 offers an affordable and intelligent fitness tracker with impressive battery life.

Xiaomi Mi Smart Band 4

We purchased the Xiaomi Mi Smart Band 4 so our expert reviewer could thoroughly test and assess it. Keep reading for our full product review.

Budget fitness trackers like the Xiaomi Mi Smart Band 4 tend to be hit or miss, with some budget models providing accurate data and useful features, and others serving as basic monitors and pedometers with a few additional features that may or may not work well. I tested the Xiaomi Mi Smart Band 4 for two weeks to see how it performs compared to other budget and mid-range fitness trackers on the market.

Design: A full color display

The Xiaomi Mi Smart Band 4 is just the right size—it doesn’t overpower a small wrist, and it doesn’t look too small on a larger wrist. It’s stylish and simple, with a rounded screen and a rubberized adjustable Band. The tracker is removable, and you can switch out the Band and purchase other styles and color options. You can find a 10-pack of replacement bands in different colors on Amazon for around 10 to 15.

The tempered glass screen is clear and vivid, with a fingerprint resistant coating to help maintain a clean appearance.

One area where the Xiaomi Mi 4 really shines is its screen, which is a 0.95-inch full color AMOLED display with 400 nits max brightness. The tempered glass screen is clear and vivid, with a fingerprint resistant coating to help maintain a clean appearance. You can see a huge difference between the screen quality on the Mi Band 4 and its predecessor, the Mi Band 3, which was too dim and difficult to read. The Mi Band 4 is clear and bright, and you can easily read the display from a distance. The interface is well designed too, and you can choose between a large library of different watch faces. I chose a watch face that includes a small image of a unicorn. You can also customize your watch face and add a picture from your photo library.

Comfort: A water resistant removable Band

The Xiaomi Mi Band 4 is water resistant with a 5 ATM rating. This means the Band can go in up to 50 meters of water for up to 10 minutes, and it can tolerate shallow water activities like swimming. You can comfortably shower with the Band, wear it in the rain, or wear it while you’re drenched in sweat. It doesn’t feel too hot on the wrist either.

The adjustable Band is about a quarter of an inch in width, and it has rounded edges for maximum comfort. Instead of having a prong that slides through the size adjustment holes, it has a small button that presses into the sizing holes. I find the button design more comfortable and easier to take on and off than a fitness tracker with a prong.

The Mi Band 4 adjusts between 155 to 216 mm, so it fits most wrists snugly without leaving any marks. It doesn’t dig into the skin, so I could wear it while typing. It’s also surprisingly comfortable to wear while sleeping and during exercise. It allows for a full range of motion with my hand, and I can perform all exercises while wearing it, including pushups, which can sometimes be uncomfortable with other trackers that have a thicker Band.

Performance: Not bad for the price

The Mi Band 4 has a responsive touch screen that doesn’t lag when switching between screens or loading data. It has an impressive feature set for a fitness tracker in this price range, although some of the tools aren’t always pinpoint accurate, and you won’t get as many perks as you’d get with a fitness tracker in a higher price range. All in all, I was impressed with the fitness tracker’s overall performance.

It has workout modes for using a treadmill, general exercise, outdoor running,cycling, walking, and swimming that you can set up right on the watch’s main screen. It has 24/7 heart rate monitoring, sleep tracking, and notifications for calls, texts, and a few apps (like Skype and your Calendar). You can even customize the vibration settings for different types of alerts and notifications. When you receive a call, you can deny the call from the fitness tracker. You can also read texts right on the tracker’s screen, although emojis and Apple Memojis won’t display.

On the downside, the step counter overstates steps, and it’ll sometimes track other hand movements as steps, like typing or swinging my arm. The heart rate monitor was dramatically inaccurate by as much as 15 beats per minute compared to a chest strap. However, the accuracy of the heart monitor improved when I placed the tracker in a better location on my wrist. The tracker lacks built-in GPS, and it uses your phone’s GPS for location based tracking.

band, feature, learn, here, smart

Software: Mi Fit App

The Mi Fit app is somewhat basic, but it provides useful health and fitness information. Some functions, like automatic monitoring, aren’t as easy to find in the app as others, but overall the basic app serves its purpose. As with most fitness trackers, you can set alarms, set event reminders, and share your fitness info. You can view historical data on your heart rate, workouts, steps, and calories burned. You can track your sleep, including deep sleep, light sleep, hours slept, and more.

In addition to customizing settings and widgets and tracking your data, the Mi Fit app works with other products like the Mi Composition scale, which can provide a more comprehensive experience, including body weight and balance data.

Battery: Up to 20 days

The Mi Band 4’s battery is phenomenal, as the 135 mAh battery lasts for up to 20 days. Options within the app for things like better sleep monitoring and heart monitoring can greatly reduce battery life, however, the app will warn you about that when selecting such options.

I took full advantage of the tracker’s features over a two week period, and I was at about 10% battery at the end of the two weeks.

The 135 mAh battery lasts for up to 20 days.

Pressing the “find my Band” button 30 times (which vibrates the Band) reduced the battery by only one percent, so this device makes incredibly efficient use of its battery.

The only negative about the battery is when it comes time to charge the device. You have to remove the tracker from the Band and place it onto a mini charging station. It’s somewhat difficult to remove from the Band, and you have to kind of wiggle it out of the Band. The unit also fits snugly into the charging station, so you have to gently force the Mi 4 Tracker into the charging station to ensure it’s properly charging. Once you achieve that, it takes about one hour and 45 minutes to reach a full charge.

Price: An amazing value

The Xiaomi Mi Smart Band 4 is incredibly affordable, selling for 29 on Amazon. The next gen Band, the Mi Band 5, is now hitting the market, which is lowering the price of the fourth generation model. The Mi Band 4 isn’t perfect by any means, and it won’t provide the same experience that you’d get with a tracker that costs hundreds of dollars, but it’s a steal at its price point.

Xiaomi Mi Smart Band 4 vs. Fitbit Charge 3

For a light user, the Xiaomi Mi Smart Band 4 will provide a similar experience to the Fitbit Charge 3, and for much less cash. The Mi Band 4 sells for less than 30, while the Charge 3 (view on Amazon) sells for closer to 100. The Mi Band 4 even has a color display, which the Fitbit Charge 3 lacks. If you want a budget tracker with better accuracy, the Charge 3 is probably the way to go. If you just want to try out a fitness tracker, the Mi Band 4 is a good choice.

Impressive, especially for the price.

The Xiaomi Mi Smart Band 4 offers a lot of features for a little bit of cash.

Xiaomi Mi Smart Band 4 review

Another year, another Mi Band from Xiaomi. Called Mi Band 4 in China and Mi Smart Band 4 on the international scene, the gadget sports an OLED screen with 16 million colors for the first time in the lineup.

I had been using the Mi Band 3 on a daily basis, so switching to the Mi Smart Band 4 was a no-brainer. One trip to the Mi Store later, and here am I, staying with the current trends.


The new Mi Band has a tall retail box and you’d expect something massive to come out. In reality, half of it is empty. the top side is occupied by the rubber Band and the actual pill-shaped gadget, the bottom is reserved for the reading material about licensing and whatnot, but those could have easily fit in half the space.

One thing that immediately grabs the attention is the new charger. now the Pogo pins are on the bottom, instead of being hidden in the edge, so you need a new cable for it. It still is with USB on the opposite end, so you can just plug it in a PC and forget about it until it is time to charge the device.


The predecessor Mi Smart Band 4 also had an OLED, but now the diagonal grew from 0.78” to 0.95”. Looking at it at a sharp angle you can see the actual display, which is surrounded by a lot of plastic bezels on all sides, but this is rarely an issue in real life. The responsive button is now marked with a tiny white circle, but the whole ensemble did not make the device bigger. the Mi Smart Band 4 fits comfortably in the rubber bands designed for the Mi Band 3.

If you are like me and you’re upgrading, here’s my suggestion. use the old one until it breaks, then replace it with the one that came in the package.

Xiaomi Mi Smart Band 4 vs Xiaomi Mi Band 3

The back is occupied by the regular stuff. heart rate sensor, connector pins and the Mi logo. Bear in mind this is where the Mi Smart Band 4 gathers grime the most, so it is good to clean it with pure alcohol about once a week.

band, feature, learn, here, smart

Features and usability

I said it last year and I’ll say it again. Xiaomi is doing great job following the “If ain’t broken, don’t fix it” rule. You have the usual heart rate, notifications, weather, sleep tracker and sports tracker. The Band supports six different types of workout. Outdoor run, Treadmill, Cycling, Walking, Excercise, and Pool Swimming.

When I connected the Band to the Mi Fit app, it immediately transferred all my settings, so I didn’t have to bother setting up alarms and notifications all over. The application is redesigned as well, with more colors and graphics, but the key information remains readily available, for which Xiaomi deserves only praise. Speaking about colors and graphics, since the OLED supports all the colors, you can set up a custom home screen, which gives the Band a personal touch.

Battery Life

Here is where I was pleasantly surprised. Bringing more power-hungry features while keeping the same footprint isn’t the easiest of tasks. Somehow Xiaomi managed to improve the sleep tracker, so when you are sleeping, the device actually preserves the battery life and the Mi Smart Band 4 lives longer between charges.

Here’s my two cents after enough time of using the gadget. the Mi Band 3 recorded my heart rate and my sleep at every five minutes. It buzzed once in the morning to wake me up and that’s pretty much it. I am not a fan of notifications on my wrist since I am already with a phone in my hand pretty much all the time.

This kind of usage gave me 14 to 15 days on a single charge. At the time of writing, the Mi Smart Band 4 has 33% battery life remaining after 18 days of usage, so it’s pretty safe to say it will hold on for at least another week. That’s quite the gain, given the battery only increased from 110 mAh to 135 mAh.


The Xiaomi Mi Smart Band 4 has three key points. it is light, it is cheap, it is straight to the point. There is the right amount of features without any clutter and the app is helping you understand your body better.

There are a couple of devices trying to compete, like the Huawei Band 4 and the Samsung Galaxy Fit e. However, the Mi Smart Band 4 is just €35, edging out any competition, making it the true king of ultra-affordable wearables.

| Denial of responsibility | Contacts |RSS