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Xiaomi Mi Band 4

4.5 4.5 out of 5 stars 4,879 ratings

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About this item

  • Languages Included English and Chinese. Wristband width 18mm, Adjustable wrist strap length 155-216mm
  • Battery Life: 135mAh battery capacity built in the Mi Band 4, max working time up to 20 days after a full charging.
  • Health Monitoring: Support heart rate monitoring, heart rate alerts, sleep monitoring, idle alerts; Monitoring your health data o matain your healthier body
  • Activity Tracking: Comes with 6 workout modes: Treadmill, exercise, outdoor running, cycling, walking, swimming Counting step, distance, calories burned during sports
  • 5ATM Water Resistant: Up to 50 meters water resistant rate, freely to wear Mi Band 4 when running and exercising
  • Display: 0. 95-inch Colorful AMOLED display with 120 x 240 pixels resolution, up to 450 nits screen brightness

Product Description

Xiaomi Mi Band 4 Fitness Tracker

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Xiaomi Mi Band 4


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Customer reviews

4.5 out of 5 stars
4.5 out of 5
4,879 global ratings

Customers say

Customers like the value, appearance and performance of the wearable computer. They mention that it's an affordable fitness tracker with a wonderful battery life. They appreciate the beautiful colors and screens. They say that it works well and does all that it advertises. However, some customers dislike connectivity. Opinions are mixed on heart monitoring, ease of use, and quality.

AI-generated from the text of customer reviews

203 customers mention197 positive6 negative

Customers appreciate the value of the wearable computer. They say it's an affordable fitness tracker with a very long battery life. They're impressed with the quality and price. Customers also mention that it'll be well worth the upgrade due to the improved screen. They like that the product is understated and easy to change the bands.

"...Overall: great watch for an amazing price!!" Read more

"...I also have the option to change the bands for cheap and it's very easy.The main reason I bought this is for the fitness tracking...." Read more

"...choose from on amazon to match your outfits....... its stylish and affordable... I am a watch person and have many watches... I did not want to put..." Read more

"...with our purchase and recommend it to anyone looking for a low-price semi-smart watch." Read more

201 customers mention183 positive18 negative

Customers are satisfied with the battery life of the wearable computer. They mention that it has a wonderful life, lasting more than 7 days.

"...The battery actually lasts even *longer* than the company claims (and longer than my husband's FitBit)...." Read more

"...I wear it all the time - the charge lasts about a week...." Read more

"...Battery life is very good: several days of constant use. This is fortunate, since recharging is a little bit of a hassle...." Read more

"OK so after 21 days I still have 36% battery life. Simply amazing...." Read more

155 customers mention155 positive0 negative

Customers are satisfied with the appearance of the wearable computer. They mention that it looks great, has a nice display, and beautiful colors and screens. Some appreciate the attractive interface and the solid build. Overall, customers are impressed with the features and look of the product.

"...The app allows me to change the look (which is great, because I needed a "large font" for the time)...." Read more

"...many bands to choose from on amazon to match your outfits....... its stylish and affordable... I am a watch person and have many watches... I did..." Read more

"...The native app is alright for this (it got much better for this band than it was for the Mi Band 2), but it's the 3rd party apps where this shines...." Read more

"...NotificationsTimeNice displayWatch face selectionSleep trackingI'm writing this as an iPhone user, on iOS 13.3...." Read more

127 customers mention106 positive21 negative

Customers like the performance of the wearable computer. They mention that it works well, all the features work well, and is easy to use. Some say that it does all that it advertises well. That said, most are happy with the performance and quality of the product.

"...The timer, weather, and alarm features work fine...." Read more

"...Which work perfect for what I need. I paired the Mi Band 4 with the Google Fit app and it tracks my runs really well...." Read more

"Update: I've had this for less than 9 months. It worked great until about 2 months ago. Then it stopped tracking my walks and bike rides accurately...." Read more

"...This tracker does everything I was looking for and does them well. There are two caveats. The sleep tracker isn't as accurate as I would like...." Read more

225 customers mention147 positive78 negative

Customers are mixed about the heart monitoring. Some mention that it tracks their workouts very accurately, and the heart rate monitor is great. They also say it's accurate in its sleep tracking, and keeps track of their steps. However, some customers say that the sleep tracking is very meh, and doesn't pick up wake ups. They say the pulse function is iffy, and it lags.

"...It's waterproof (showering/swimming) and tracks my workouts very accurately (according to Google Fit and Samsung Health)...." Read more

"...I paired the Mi Band 4 with the Google Fit app and it tracks my runs really well. That part has exceeded my expectation...." Read more

"...The pulse function is iffy--it lags, sometimes fails to register. Even so, the Band 4 is not bad at tracking sleep...." Read more

"...features... I bought it as a tracker not a smartwatch... Tracking is pretty accurate and heart rate on point...." Read more

113 customers mention65 positive48 negative

Customers are mixed about the ease of use of the wearable computer. Some mention it's simple to use, easy to navigate, and straightforward. They say the instructions are provided, but they're very sparse. That said, some say the app is extremely basic and not intuitive. They also say it'd be cumbersome to go through the menus to get things like weather, find my phone, and timer.

"...The watch is also pretty easy to use, syncs easily and and it's fun to change the watch face..." Read more

"...I have not been able to enter the data manually. The app is not especially clear on how to do that--and a number of other things...." Read more

"...I also have the option to change the bands for cheap and it's very easy.The main reason I bought this is for the fitness tracking...." Read more

"...I do not like the app very much it a bit basic. Like the Samsung app I would like to track calories burned and eaten...." Read more

111 customers mention68 positive43 negative

Customers are mixed about the quality of the wearable computer. Some mention that they are impressed with the quality, the app is solid, and it's a decent piece of equipment. However, others say that the functions are limited and the features are wasted.

"This is a decent piece of equipment. I would not hesitate to recommend it to someone who is not sure about springing for more expensive devices...." Read more

"...There are A LOT of features on the app but it does a TERRIBLE job at explaining what they are and how/when to use them...." Read more

"...proof and soap proof.... swim proof........ you name it.......... its tough...... many bands to choose from on amazon to match your outfits.........." Read more

"...there are plenty of other functions: weather, phone alerts, vibration reminders, if I decide to use them one day..." Read more

80 customers mention19 positive61 negative

Customers are dissatisfied with the connectivity of the wearable computer. They mention that the app hasn't progressed at all, it could use some work, and is essentially worthless. They also say that the optimal time required too many apps working together. Customers also say the app is extremely basic and not intuitive. They feel the companion app is a little dull and not something that makes them want to check in often.

"...The pulse function is iffy--it lags, sometimes fails to register. Even so, the Band 4 is not bad at tracking sleep...." Read more

"...I realize the app does not have the ability to synced with other apps. With that said I would really like it if could...." Read more

"...The watch is also pretty easy to use, syncs easily and and it's fun to change the watch face..." Read more

"...For the life of me I will never understand why the Fitbit sync is so so slow. Five minutes each time it syncs. Why?..." Read more

My Apple Watch (Series 3) Is On The Shelf
5 Stars
My Apple Watch (Series 3) Is On The Shelf
This watch has exceeded my expectations in every way. So much so, in fact, that my Apple Watch is back in it's box on the shelf. Most of the reason why, comes down to what I personally want in a smart watch, and that is:NotificationsTimeNice displayWatch face selectionSleep trackingI'm writing this as an iPhone user, on iOS 13.3. IPhone 11.The Apple Watch is absolutely more capable, but it's features are wasted on me. When enabling notifications, I don't want to have to choose whether or not they "mirror" the phone, or whether they don't. To me, mirroring the phone would imply that the same ringtones and notification tones would come from the watch. The Apple Watch is certainly capable of doing that, but that's not what it means. Instead, I get some feeble vibration and a generic sound. So, for example, if I'm napping or listening to music, there's no chance I'm ever going to notice the wimpy Apple notifications. Or, I can choose not to mirror my phone, and then, the notifications come from my phone, not the watch. Wasn't the point to be notified on my watch? That process, the sleep tracking data, and pretty much everything else about the Apple Watch is overkill. Well, except of course for the available watch faces. There are a few, but none really take full advantage of what the watch could display. Want the latest/best faces? Buy a new watch. No thanks.So, contrast that with the Mi Band 4. You enable notifications, and you get notifications - on the watch and your phone. Don't want them on your phone? Flip the "mute" switch. It's simple.Sleep tracking is great. Paints a good picture of your sleep session, without overwhelming you with graphs, charts, etc. It just works. HR data seems accurate. If I needed ultra precision, I'd be under a cardiologist's care. I'm not, so this is perfect for me. Watch faces: the app offers up some nice choice, and if you install AmazTools, you'll get more. If you download (use Safari) watch faces from Amazfitwatchfaces[dot]com and apply them with AmazTools, you'll have access to even more. I'd guess there's hundreds of available watch faces. Not all are English, and not all are 12hr format, but people use the watch all over the world, so that's fair enough. There are still MANY choices. The display is razor sharp (not always on) AMOLED, and getting 20 days on a charge is no problem. The Apple Watch gives me 2 days.Finally, there's the price: $35! Take my money! 😃The only minor inconvenience is that the watch has to be popped out of the band to charge, but there are other inexpensive charging cables available for it. And, it's a once every three week process. No big deal.I'd buy this watch again and again, and can't wait to see what might happen in their next model.I was not paid, compensated, or coerced to write this review. I bought it with my own money.
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Top reviews from the United States

Reviewed in the United States on March 11, 2020
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5.0 out of 5 stars Battery life is unbelievable... how ?...Just use it as a tracker... buy a smartwatch if you want one
Reviewed in the United States on March 11, 2020
OK so after 21 days I still have 36% battery life. Simply amazing. Just keep Bluetooth off and only sync once per day at nights when you take it off. The app is excellent and shows you how you did during the course of the day.......Excellent build quality and design... you will stand out in a crowd. If you want a smart watch then go buy one... this is a tracker and an excellent one too... screen is too small to read notifications anyway so I just keep Bluetooth off... if you get a notification I just pick up your phone... duh.... its always with me and besides who want constant Bluetooth radiation on their wrist.... not me........ so what if I don't get the smartwatch features... I bought it as a tracker not a smartwatch... Tracking is pretty accurate and heart rate on point. Excellent buy..... just dont try to use it as a smartwatch....... it will frustrate you especially with the small screen... at the end of the day your phone is going to be close by.. just pick it up........ I only turn on Bluetooth before I start a run, going to do something where my phone will be in a pocket or not reachable. But turn it off right after.. doing this will get you to 1 month on 1 battery charge... no other tacker in the world can do that....... well I dont know of any...do you ? For the price this is a winner........ hit the screen many times... not a scratch..... water proof and soap proof.... swim proof........ you name it.......... its tough...... many bands to choose from on amazon to match your outfits....... its stylish and affordable... I am a watch person and have many watches... I did not want to put them down just to wear a smartwatch and I dont want to wear a regular watch on one wrist and a smartwatch on the other wrist...... so I got a tracker instead.... which I wear on my free wrist....... it very comfortable and looks different from other trackers out there.........great job Xiaomi
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Reviewed in the United States on September 12, 2020
One person found this helpful
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Reviewed in the United States on July 1, 2020
2 people found this helpful
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Top reviews from other countries

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Ingrid Oliveira
5.0 out of 5 stars Muito boa e bom valor
Reviewed in Brazil on March 22, 2022
SALVADOR SANTIAGO
5.0 out of 5 stars Excelente producto
Reviewed in Mexico on September 3, 2021
serena
1.0 out of 5 stars Mi hanno fregato
Reviewed in Italy on April 30, 2023
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serena
1.0 out of 5 stars Mi hanno fregato
Reviewed in Italy on April 30, 2023
Mi è arrivato un orologio usato tutto rigato già accoppiato..la confezione era senza cellophan e con il sigillo di garanzia tagliato
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tatamimie
5.0 out of 5 stars Simple d'utilisation
Reviewed in France on March 25, 2022
Carolina
5.0 out of 5 stars Perfecto
Reviewed in Spain on October 10, 2021
One person found this helpful
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