Xiaomi Mi Band 4


Xiaomi Mi Band 4- Xiaomi’s super popular smart bracelet received an annual update. Should I pay attention to him? All detailed information will be revealed as we move on in this topic.


The first generation of the Xiaomi Mi Band fitness bracelet came out in 2014 and created a real sensation. The gadget was liked not only geeks but also very far from technology people who want to lead a healthy lifestyle. It’s time for the next activity tracker update.

  • Xiaomi Mi Band 4 Review

Price and release date in Russia Xiaomi Mi Band 4

The official presentation of the “national” smart bracelet Mi Band 4 was held in China on June 11. On sale, in the home market, the gadget arrives on June 14. Despite the innovations, the fitness bracelet almost did not change in price compared to its predecessor. So, in China, the basic version of the Mi Band 4 will cost $ 24.5 (1580 rubles), the bracelet with NFC is priced at $ 33 (2100 rubles). When the gadget officially begins to be sold in Russia is still unknown.

Specifications Of Xiaomi Mi Band 4

  • Display 95 inches, 120 x 240 dots, 24-bit color, AMOLED
  • Memory Operational 0.5 MB, built-in 16 MB
  • Sensors 6-axis accelerometer, 3-axis gyroscope, heart rate sensor
  • Nutrition 135 mAh / 125 mAh (NFC version)
  • Connection Bluetooth 5.0, NFC (optional)
  • Water resistant 5ATM (up to 50 m)
  • Dimensions, weight Bracelet width – 18 mm, adjustable bracelet length – 155-216 mm, weight – 40 g


  • Screen

The main change in Xiaomi Mi Band 4, compared with the third generation, was the AMOLED-display with a diagonal of 0.95 inches and a resolution of 240 x 120 pixels. Not only has its area been increased by 40%, but it’s also color that it’s the first time in this series. The screen is covered with a 2.5D glass with oleophobic coating. But, as we know, the protective coatings of the bracelets are still not very scratch-resistant, and many users use films and additional glass.

  • Housing

The design of the new Mi Band as a whole has not changed – it’s all the same plastic capsule that is inserted into the bracelet. The touch control button has been slightly reworked. If before the finger was a concave groove, now the button is flat and highlighted only by the icon. By the way, the manufacturer declared the water resistance of the device when immersed in water to a depth of 50 m. Included is a silicone bracelet in black, orange, blue, burgundy and pink. For those who want to stand out released a special version of the Mi Band 4 Avengers Alliance – with the original strap and the theme of the design.

  • Shell, Memory, Communication

Xiaomi’s avid bracelet users know that, despite their wide functionality and attractive price, they have little opportunity to customize the dial and interface. Previously, this was explained by a tiny non-colored display. But everything will change in the fourth generation – now the bracelet allows you to set various themes for the design (the solution is clearly created with the participation of Huami, the Xiaomi smartwatch division). In addition, the firmware itself has received new features – viewing currency rates, movie premiere schedules, as well as a built-in voice assistant.

The “heart” of the new smart bracelet is the Huangshan No.1 brand chipset. As stated in Xiaomi, it is 38% more energy efficient than counterparts based on ARM Cortex-M4 architecture. The memory in the bracelet is small and exclusively for system needs – 0.5 MB of operational and 16 MB of constant. Users do not have the ability to upload their content.

With wireless technologies, the Mi Band 4 is all spartan – there is Bluetooth, though it is already version 5.0, which means that the stability and range of the connection will increase. A separate topic is NFC. As in the third generation, the Quartet received a special version with a chip near the contactless connection. But do not be in a hurry to rejoice, to pay in a nearby supermarket with a bracelet will not work. Smartwatches based on the Android Wear and Wear OS operating system are on friendly terms with GPay

  • Sensors

Mi Band 4 received a well-known optical heart rate sensor. Despite questions to the operation of such a heart rate monitor, it remains fairly accurate for a non-medical device. If the heart rate accelerates beyond normal limits, the bracelet will begin to vibrate, which is very convenient when playing sports. An accelerometer is now six-axis. With it, implemented six modes of operation: swimming, jogging on the street, jogging indoors, walking, exercise and cycling.

  • Battery

The main question to the updated Mi Band – how the color screen will affect the autonomy of the device. The series was famous for its gigantic working hours on one charge; some users managed to stretch it for six weeks. But whether Mi Band 4 is capable of this will only be shown in time, but for now, we are content with the manufacturer’s data. Thus, the battery capacity of the basic version is 135 mAh, and the bracelet with NFC – 125 mAh. Accordingly, the first bracelet works up to 20 days, and the second – up to 15 days.

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Conclusion On Xiaomi Mi Band 4: review and features

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