As is customary with Xiaomi, the main reason for the unprecedented popularity of Xiaomi Zmi power banks was the top combination between price and functionality. Most representatives of this line boast a stylish design, support for popular fast charging formats, modern USB ports with high power output.

Almost all of them support a reduced input power mode, which is important for owners of fitness trackers, smartwatches and Bluetooth headsets. At the same time, many can boast of additional goodies like the ability to charge laptops, additional protection, fast charging or an information display. And at the same time, they are at the level or a little more expensive than low-cost power banks.


Most Xiaomi Zmi portable batteries have a very compact size and light weight. In addition to the classic black colour, many models are also available in a snow-white case. Occasionally, stylish batteries with an emphasis on design come across in the series. For example, the Zmi QB910 model with an unusual fabric upholstery of the case received an award for the best design at the prestigious RedDot Awards in 2019.

The most popular in the Zmi series are 10,000 mAh batteries, which are enough for plus or minus two full charges of a modern smartphone. A little less often in the ranks of this series there are more serious variations with a capacity of up to 20,000 mAh. Occasionally, they are accompanied by low-power batteries of 5000 - 6000 mAh, released in 2017 - 2018.